"The manufacturer says it will last 20 years," you might yell when your emergency lighting battery uses only 12. Does the manufacturer lie? Suppose their predictions were made using "best case." Regarding emergency lighting batteries, you need to consider the following points.

Improper use or maintenance

Unfortunately, consumers do not always follow the recommendations in the manual. Overheating, humidity, improper use, and poor charging habits can all contribute to early battery failure. To avoid these misfortunes, check out the article on increasing battery life.

power failure

You may notice it at home or at work. Power outages are more frequent. Due to the increase in hazardous weather, increased power demand, and aging infrastructure, backup power sources have suddenly become more frequent. If a backup generator comes into use, your emergency lighting battery may not even notice this pressure, but not all facilities have the luxury of a backup generator. For multiple locations, backup batteries are under increasing burden. Few manufacturers have stated this in their predictions.

Make a difference

For batteries, even small changes can affect battery life. The reason is that batteries used in emergency lighting rely on fine chemical action. When the amount of chemicals is slightly reduced, the number of punched holes produced by the battery cell is not the same as expected. To avoid this, it is important to use a trusted brand battery, which should have a consistent record of results.

The batteries provided by emergency lighting come from mature brands, such as emergency lighting batteries in Lithuania. To learn more about the best battery for you, call us at 763-542-3155. Our sales team knows the industry. We have been involved for more than 30 years. We will guide you in making the most meaningful purchase.


How long can the battery last?
Rechargeable batteries are an investment, and in order for you to get the most out of them, they need to be durable. When determining the expected life of the next battery, it is important to know the type of battery. Each type of battery responds differently to various environments, which greatly affects its service life.

Sealed lead acid and VRLA batteries

Lead-acid batteries are the earliest rechargeable batteries, first appearing 150 years ago. Sealed lead-acid batteries are a new variant of old technology. Their main benefit is the addition of calcium to the board, which reduces water loss. When controlling the charge rate, they can also recover the gas produced and prevent damage to the battery. These innovations helped them reach an average lifespan of 5 to 10 years.

VRLA (valve-regulated lead acid) batteries are closely related to SLA batteries. The main difference is that they are more durable. Under normal circumstances, the life of the SLA battery is the same as that of the VRLA battery, but the VRLA can be inverted without spilling the electrolyte. This makes it useful for some applications longer than its SLA cousin.

Both types of batteries must be properly maintained for long-term use. Do not attempt to charge the battery at temperatures below zero. Although lead-acid batteries can withstand extreme temperatures, they have limitations. To ensure proper battery maintenance, refer to the instructions. Most instructions detail the optimal temperature for storage, charging instructions and operation. Follow these guidelines and they will last. An example of detailed instructions included with the battery is shown in the Power Sonic SLA battery in this guide.

Nickel-cadmium batteries

Nickel-cadmium batteries are ideal for demanding applications. They can withstand high discharge rates while maintaining minimal damage or capacity loss.

Unfortunately, their storage performance is not as good as that of lead-acid batteries. Nickel-cadmium batteries will self-discharge at a faster rate. Charge the battery semi-periodically to avoid deep discharge, which can damage the battery and shorten its life.

If the nickel-cadmium battery is properly maintained according to the instructions in the package, the battery should last 10 to 15 years or 500 to 1000 charge cycles.

Although the precautions are different, all nickel-cadmium and nickel-metal hydride batteries should not be charged at freezing temperatures. Avoid extreme temperatures while charging.

NiMH batteries

Nickel-metal hydride batteries are similar to nickel-cadmium batteries, except that their energy density is close to that of lithium-ion batteries, making them ideal for high-current consumption applications. Their average life is equal to the average life of nickel-cadmium batteries.



Like nickel-cadmium batteries, they do not perform well in storage. They can lose up to 4% of their electricity every day, which means they need to be recharged regularly to avoid deep discharge. Fortunately, changes in nickel hydride reduce self-discharge, called LSD nickel hydride.

No matter which NiMH battery you choose, keep your intentions in mind. If you need to store the battery for a long time, you need to consider using the LSD version of the NiMH battery, because it is equipped with a battery to avoid deep discharge.

Before deciding to use the next battery, consider the purpose. If you need help determining which battery is right for you, please contact us online or call us at 800-521-4045. We will help you.


8 facts you should know about charging SLA batteries

Almost everyone has ever used an SLA battery and didn’t even notice it. Although the battery type does not attract much attention, it should be noted. In terms of its cost, it is by far the most efficient battery and is widely used in various industries.

1. They have been around for a long time

In 1859, a French doctor invented the first rechargeable lead-acid battery for commercial use. The ancient ancestors of the batteries we use today were originally lighted trains. Since then, they have continued to improve over the past century and a half.

2. Stop leaks

Until the 1970s, lead-acid batteries could leak at various physical locations. SLA batteries were introduced to the market in the 1970s to minimize battery maintenance and prevent leaks. For modern SLA batteries, maintenance is limited to proper storage and charging, and the battery does not leak when the battery is shaken to an abnormal location.

3. Faint alloy

SLA batteries actually use lead alloys. Pure lead cannot be self-sufficient. The metal is too soft.

4. Bring a chill

SLA batteries outperform their expensive cousins, lithium and nickel-based batteries when dealing with sub-zero situations.

5. Make sure you charge correctly

If you charge the SLA correctly, it will thank you for longer battery life. Battery types perform better when not charged or fully charged. After the battery is charged, the battery should be switched to "floating" voltage. Do not store the battery for more than six months without charging it. For a description of the best charging conditions, consult the battery manual. For the Power-Sonic 640F1 battery, you can find charging and storage information here.

6. Store the battery in the best place

If the batteries are properly stored and charged, they will last longer, saving you money. The battery should be stored in a cool, dry place. They should also be kept at optimal temperatures. Usually, you can find this kind of information in batteries, but the general rule of thumb for SLA batteries is that they should be stored at a temperature between 65 and 70 degrees.

7. Don’t overcharge

We do cover this, but it is very important. Overcharging a battery causes it to swell, which is a sign that the battery is rapidly aging due to abuse. In some extreme cases, overcharging can damage the battery within hours.

8. What happens if you drop the battery

An accident occurs, but be assured. The advantages of SLAs are their durability and their ability to prevent leaks. For example, PS-640F1 is a battery provided to you as a blowout, with a regulating valve and a splash-proof structure to prevent leakage.

However, if the battery is damaged by an impact, the necessary precautions should be taken. Use protective equipment, such as rubber gloves and safety glasses, to prevent injuries. Sodium bicarbonate can be used to neutralize spills or battery components. Keep the ruptured battery in a heavy plastic bag and keep it in a non-metallic container until it can be recycled.



The PS-640F1 is just one of the items provided in the event of a failure. You can save dough by checking the remaining items. You can even save up to 79%.



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You’ll find that air compressors are used in a wide variety of situations, from corner gas stations to large manufacturing plants. Moreover, more and more air compressors are entering home workshops, basements and garages. Various models are now available for purchase through local home centers, tool dealers and mail order catalogs, these models are sized to handle a variety of jobs, from inflatable toys to nail guns, sanders, drills, impact wrenches, staplers and spray guns Waiting for power tools.

The biggest advantage of pneumatic is that each tool does not need its own bulky motor. Instead, a single motor on the compressor converts electrical energy into kinetic energy. This allows lightweight, compact, and easy-to-operate tools to run quietly with minimal wear on parts.


Air compressor type

Although there are compressors that use rotating impellers to generate air pressure, positive displacement compressors are more common and include models used by homeowners, carpenters, mechanics, and contractors. Here, the air pressure is increased by reducing the size of the space containing the air. Most of the compressors you will be using do this with a reciprocating piston.

Like small internal combustion engines, conventional piston compressors have a crankshaft, connecting rods and pistons, a cylinder and a valve head. The crankshaft is driven by an electric motor or a gas engine. Although some small models consist of only a pump and a motor, most compressors have an air storage tank that can hold a large amount of air in a certain pressure range. The compressed air in the air tank drives the pneumatic tools, and the motor is cycled on and off to automatically maintain the pressure in the air tank.

At the top of the cylinder you will find a valve head with an intake and exhaust valve. Both are simple thin metal discs-one below and one on top of the disc. As the piston moves down, a vacuum is created above it. This allows outside air to push open the intake valve at atmospheric pressure and fill the area above the piston. When the piston moves up, the air above it compresses, keeping the intake valve closed and pushing the exhaust valve open. Air moves from the exhaust port to the water tank. With each stroke, more air enters the fuel tank and the pressure rises.

Typical compressors are available in 1- or 2-cylinder versions to suit the requirements of the tools they power. At the homeowner / contractor level, most 2-cylinder models operate the same way as single-cylinder models, except that there are two strokes per revolution instead of one. Some commercial 2-cylinder compressors are 2-stage compressors in which a piston pumps air into a second cylinder, further increasing the pressure.

When the tank pressure reaches a preset limit (approximately 125 psi for many single-stage models), the compressor uses a pressure switch to stop the motor. However, in most cases, you don’t need that much stress. Therefore, the air line will include a regulator that you can set to match the pressure requirements of the tool used. The pressure gauge before the regulator monitors the tank pressure, and the pressure gauge behind the regulator monitors the air pressure. In addition, there is a safety valve on the water tank, which will open if the pressure switch fails. The pressure switch can also be equipped with an unloading valve, which reduces the tank pressure when the compressor is switched off.

Many articulated piston compressors are oil lubricated. That is, they have an oil bath that splashes and lubricates the bearings and cylinder walls as the crankshaft rotates. The piston has rings that help keep compressed air on top of the piston and keep the lubricant away from the air. However, rings are not completely effective, so some oils can enter compressed air in the form of aerosols.

Oil in the air is not necessarily the problem. Many pneumatic tools require oiling, and in-line oilers are often added to increase the uniform supply of tools. On the downside, these models require regular oil checks, regular oil changes, and must be operated on level ground. Most importantly, some tools and situations require oil-free air. Spraying oil in the air stream can cause paint problems. And many new woodworking pneumatic tools (such as nails and sanders) are designed to be oil-free, so there is no opportunity to stain the surface with oil. Solutions to the problem of oil in the air include the use of oil separators or filters in the air lines, but a better idea is to use oil-free compressors that use permanently lubricated bearings instead of oil baths.



One variation on automotive piston compressors is the use of a one-piece piston / connecting rod model. Because there is no wrist pin, when the eccentric journal on the shaft moves up and down, the piston will tilt left and right. The seals around the piston remain in contact with the cylinder wall and prevent air leakage.

Where air demand is not high, a diaphragm compressor may be effective. In this design, the diaphragm between the piston and the compression chamber seals the air and prevents leakage.

Compressor power
One of the factors used to specify the compressor power is the motor power. However, this is not the best indicator. You really need to know how much air the compressor can deliver at a certain pressure.

The rate in cubic feet per minute (cfm) that a compressor can deliver large amounts of air. Because air pressure plays an important role in the speed at which air enters the cylinder, cfm changes with air pressure. It also changes with the temperature and humidity of the air. To establish a level playing field, manufacturers calculated standard cubic feet per minute (scfm) with air levels of 68 degrees Fahrenheit and 36% relative humidity as cfm. For example, the Scfm rating is given at a specific pressure of 90 psi (3.0 scfm). If the pressure is reduced, scfm will increase and vice versa.

You may also encounter a level called "displacement cfm". This number is the product of the cylinder displacement and the motor speed. Compared with scfm, it provides an index of compressor pump efficiency.


The cfm and psi ratings are important because they represent tools that a particular compressor can drive. When selecting a compressor, make sure it can provide the amount of air and pressure required by the tool.

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Most RVers understand the importance of maintaining proper tire inflation pressure. The problem is that if you wait until the tire pressure is checked on the road, the tire will overheat and cannot be evaluated correctly. It doesn’t make sense to check the inflation pressure when you stop refueling; you will get a higher pressure reading, and if you empty the tire, the tire will be underinflated in the cold. Another problem is that when you are on a campsite and want to check the tire pressure, there is no air support available.


That’s why you might want to consider buying a portable air compressor. However, air compressors can be difficult to understand, especially if you are trying to find a compressor that can increase the inflation pressure of a large motorhome tire. Let’s start with some basic knowledge of air compressors.

Air compressors have three main ratings: horsepower (HP), cubic feet per minute (CFM), and pounds per square inch (PSI). Understanding these three features of an air compressor can help us choose the right portable air compressor.

We will start with horsepower. Unfortunately, when it comes to air compressors, manufacturers haven’t done a great job explaining to consumers, almost to the point where some people would consider false advertising. Manufacturers tend to exaggerate HP ratings. Assuming consumers see 6 HP (not 2 HP) as shown in the advertisement, they are more inclined to buy compressors with higher HP ratings. This is true in many cases. If you are a fan of muscle cars, you will definitely consider the HP level of the car before buying, right? But if we take a closer look at the horsepower associated with air compressors, we will find out the truth.

Watts are used as a measure of electrical and mechanical power. When we apply power to HP, one HP is equal to 746 watts. So if you buy an air compressor with a rated power of 6 HP and its operating voltage is 120 volts, it is a wrong rating in a sense. If the compressor is plugged into a standard 15 amp, 120 volt circuit, it will only produce about 2HP (voltage X amp = watt). The advertised higher HP rating is often referred to as the peak HP, similar to the HP rating of a vehicle engine. The peak HP rating of an on-board engine is accurate only in the higher RPM range (typically 5000 to 6,000 RPM), but you rarely drive at 5,500 RPM. For air compressors, 240 volt circuits are required to provide more amps to produce peak HP ratings.

For portable air compressors, cubic feet per minute (CFM) is an important grade. CFM is basically a measure of the rate at which a compressor can deliver large amounts of air. CFM varies with atmospheric pressure. It also changes with the temperature and humidity of the air. Air compressor manufacturers calculate standard cubic feet per minute (SCFM) as CFM at a sea level of 36% relative humidity and 68 degrees Fahrenheit.

Note: The CFM rating may also be distorted by the manufacturer.

Let’s talk about our third grade, pounds per square inch (PSI). For air compressors, CFM ratings are given in specific PSI. In other words, an air compressor rated at 3 CFM 90 PSI should be able to provide 3 CFM at 90 PSI. The problem is that air compressor manufacturers can advertise higher CFMs at specific pressures because air compressors can provide rated CFMs from 0 to 90 PSI, but what is a true CFM at 90 PSI. If your pneumatic tool or RV tire requires a specific CFM rating of 90 PSI, you may not be able to get that value based on the advert CFM specific pressure. This also means that if the compressor can actually inflate the tires, it will take longer to inflate some of the larger RV tires.

When buying a portable air compressor, the key is to try to find a compressor that can provide about 4 REAL CFM at an actual HP rated pressure of 90 to 100 PSI.

If you have a storage room available and you can use electricity, you can find some reliable pancake-type portable compressors that are good at inflating tires and performing other small home work. If you prefer a battery-powered portable air compressor, I came across a model that looked like it could do the job while researching the subject. It was designed by VIAIR specifically for RV and other large tire inflation jobs.

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The working principle of a car air compressor is to suck natural air and pump it to the air cylinder or air tank of the car chassis. The compressor is directly driven by the motor to make the crankshaft rotate, and the connecting rod causes the piston to reciprocate, causing the cylinder volume to change. . Due to the pressure change in the cylinder, the air is passed through the air cleaner (muffler) into the cylinder through the intake valve. During the compression stroke, due to the reduction of the cylinder volume, the compressed air passes through the exhaust valve and passes through the exhaust pipe. The check valve (check valve) enters the gas storage tank. When the exhaust pressure reaches the rated pressure of 0.7 MPa, it is automatically stopped by the pressure switch. When the pressure of the gas storage tank drops to 0.5--0.6MPa, the pressure switch is automatically connected and started.

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"Emergency escape lighting can be" always maintained "or always" non-maintained ", and can only work when normal lighting fails. The operating time of the system or a single lighting unit (luminaire) is three times after the mains power fails. Within hours. In fact, the three-hour design is the most popular and can help maintain limited home use during periods of power outages (except emergency situations). "

The emergency light for maintenance usually has two lumen values ​​(luminous flux, that is, the luminous flux from the light source) in its technical description: one value is the output when the main power supply is powered, and the other is the output when the main power is powered. The emergency light is powered by a backup battery. The latter usually account for about 10% of total output.

A maintained emergency light can usually be used as a switchable unit. This means that ordinary wall-mounted light switches can be used to switch between maintenance and non-maintenance operating modes. This is useful in areas that do not require continuous lighting, such as stairwells in high-rise apartment buildings, which require lighting only when someone is going up the stairs instead of taking the elevator. Of course, even if the power switch is in the "off" position, the emergency light will still be on in the event of a power failure. However, as mentioned above, the emergency light output will be about 90% lower than usual.

The disadvantage of unsustainable emergency lighting is that the condition of the lamp can only be determined through periodic testing. It is not good to wait for a power outage and find that it does not work. However, this problem can be solved by installing a self-test emergency light.

It is usually as maintenance-free as possible. This method is cheaper in terms of energy consumption and the life of accessories. However, in some places, such as theaters and movie theaters, lighting equipment must always be illuminated, that is, in maintenance mode, so sometimes there is no choice.

For emergency lighting in areas where high-intensity lighting is usually required, such as in corridors of office buildings, combined or permanent emergency luminaires can be installed. This type of unit contains two or more lights, at least one of which is powered by an emergency power source and the rest is powered by utility power. The power section of these lamps is usually controlled by a common light switch. Normally, all lights will be on under normal conditions, but if the power supply is interrupted, only the emergency lights will be on and battery powered.

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The use of portable air compressors includes simply inflating footballs and tires, inflating cylinders, and powering pneumatic tools such as wind cannons, grinders, wrenches and paint sprayers.

An important factor you should consider when using a portable air compressor is power, expressed in horsepower (HP), and air intake volume expressed in cubic feet per minute (CFM). You also need to check its capacity to consider the balance between large capacity and portability.

Operating these compressors is easy, but to maintain their safety and durability, several steps must be followed when using this equipment. With proper operation and maintenance, the machine will work more efficiently and have a longer life.

1. Set up the air compressor
The process of assembling an air compressor usually varies by manufacturer / model. The machine’s user manual usually contains instructions to guide you in setting up the machine correctly. This is the first and most important step to ensure that the correct connection will not cause any damage. One setup procedure to be performed on all models is to connect the compressor hose to the machine’s regulating valve. If you’re new to this or don’t know the assembly process, it’s best to ask an expert to do it for you, or you can purchase a smaller pre-assembled unit that you’re ready to use. You can watch the following video as a reference for setting up the air compressor.


2. Check the oil and fuel levels
Whenever this machine is used, checking the oil level is standard procedure. Engine oil is the substance that lubricates and cools the engine, so running an air compressor with a low oil level can cause the engine to freeze, which is difficult to repair, and most warranties are not covered. If the oil level is below the fill line, it must be filled, and if used for a long time, the oil must be changed as described in the video below. You also need to check for oil leaks and close responsible outlets to avoid confusion and reduce machine efficiency.

You must also check the amount of fuel to ensure that the machine can run for a long time. This prevents unnecessary interruptions between chores to refuel.

The most commonly used power sources in air compressors include natural gas, diesel, and electricity, with differences in efficiency, cost, eco-friendliness, and ease of use.

3.Close all exhaust valves
To ensure that air remains intact during compression, it is important to close all exhaust valves. This prevents air leakage and keeps the differential pressure of the compressed air constant. According to the machine’s user manual, you must make sure that the different valves are properly set before proceeding to the next step.

4. Start the engine
Compressor If the portable air compressor is electric, connect its cable to the nearest electrical outlet and turn on the power. If it is not electric, make sure the fuel is sufficient before turning it on.

This will start the engine and its speed will gradually increase until it reaches the highest level. You should then allow the compressor to warm up for a few minutes before you begin to compress the air entering its tank / cylinder until the maximum pressure is reached. You will then close the drain valve of the fuel tank to prevent air from escaping and allow it to cool for a while before stopping the engine.

5. Use it on power tools
You can finally use it to drive your tools.

All you need to do is connect its compressor hose to the air inlet or power tool of the item to be inflated, adjust the settings and release the high pressure air flow to meet the needs of your project.
Portable compressors can be used to fill cylinders, provide clean air to divers, drive pneumatic HVAC units, power pneumatic tools such as portable rock drills, and power industrial processes such as oil oxidation. Smaller portable air compressors can actually be used for smaller jobs, such as inflating balls, inflatable mattresses and tires, etc.

Each portable air compressor model has a different structure and functional design, and each operation may be completely different.

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There are many methods of air compression, divided into positive displacement type or rotary power type.



Positive displacement compressor
It works by forcing air into a reduced volume chamber for compression. When the maximum pressure is reached, the port or valve opens and air is discharged from the compression chamber into the outlet system. Common types of positive displacement compressors are

2. Piston type air compressor: The air compressor uses this principle to pump air into the air chamber by using the constant movement of the piston. They use a check valve to direct air into and out of the chamber, and the bottom of the chamber consists of a moving piston. When the piston is on a downward stroke, it draws air into the chamber. During its up stroke, air is forced out and into the tank during opening. Reciprocating compressors are generally divided into two basic categories, single-stage and two-stage. Single-stage compressors are typically in the 5 horsepower range. Two-stage compressors usually fall. Entering the 5 to 30 horsepower range, two-stage compressors provide higher efficiency than single-stage compressors. As a result, these compressors are the most common unit in the small business community. Single- and two-stage compressor capacities are typically available in horsepower (HP), standard cubic feet per minute (SCFM) *, and pounds per square inch (PSI). To a lesser degree, some compressors are rated cubic feet per minute (ACFM). Others are rated in cubic feet per minute (CFM). Using a CFM to rate a compressor is incorrect because the flow it represents is independent of the pressure reference. That is, 20 CFM at 60 PSI.

3. Rotary screw compressor: It uses positive displacement compression by matching two screw screws. When rotating, the screw guides air into a chamber, and the volume of the chamber decreases as the screw rotates.

4. Vane compressor: Slotted rotors with different vane positions are used to introduce air into the chamber and compress the volume. This type of compressor delivers a fixed amount of air at high pressure.


5.Dynamic displacement
Dynamic displacement air compressors include centrifugal compressors and axial compressors. In these types, the rotating component transfers its kinetic energy to the air and eventually converts it into pressure energy. These use centrifugal forces generated by rotating impellers to accelerate and then decelerate the captured air, thereby pressurizing it.

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The concept of compact, portable car air compressors running efficiently is a bit surprising, whether it’s inside or around the house, in a car, or at other jobs, you can take it with you and use it at any time.


Emergency tire repair

Whether you’re traveling for leisure or an important car trip, the sudden flattening of tyres can be a huge headache. The portable car air compressor you can bring with you is a godsend solution. Although some portable models run out of battery power, other portable models can even plug into a car’s DC power source. In an emergency, the compressor in the garage will not turn off, this solution is ideal.

Drivers and tires benefit

When wheel nuts need to be removed, pneumatic tools can be used to make maintenance faster and easier. To check the air in your tires, you don’t need to stop at a gas station. There is no problem with a portable compressor that you can use wherever you need it.

Air compressors can be used to deflate car tires. If you’re thinking why it’s necessary, read this. Too much air in a car tire can make it unbalanced. The driver can deflate the tire using an air compressor. To deflate, you need to use the deflate button on the portable compressor.

Whatever the purpose of using the tool, there is no doubt that the portable air compressor is a convenient tool for handling a lot of work in automobiles.


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LED emergency power supply is an accessory that assists in the development of lamps. Its function is to keep the lamp on for a period of time in the event of a power failure. Generally, it is 30 minutes, 60 minutes, 90 minutes, 120 minutes, 180 minutes, according to requirements. Generally, it will be divided into full power emergency (luminance of 100W luminaires will not change after the power failure), power reduction emergency (power of 100W luminaires will be less than 100W after power failure, 5W or 15W may be used), emergency lighting is generally composed of three parts : LED lamps + LED drive power + LED emergency power


Selection of emergency power

First of all, you need to know the power of the luminaire, and the power required for emergency. Different luminaires are driven differently, and the emergency range is also different. Example: 100W Lamp Emergency 100W This kind of emergency power source should choose full power emergency. Example: 100W Emergency 5W

The second step is to determine the emergency time of the lamp. The general emergency time is between 30 minutes and 180 minutes.

The third step needs to determine whether the lamp has a driving power supply. Due to the size limitation of some lamps, the driving power and the emergency power supply need to be an integrated emergency power supply.

The fourth step needs to drive the type of lamps, different types of lamps, the number of wiring is different.
Example: Fire wire L, neutral wire N of conventional lamps

High-power lamps: live line L, neutral line N, ground line E

The fifth step needs to know if there are special requirements for emergency power
Example:
1. Do you need to be waterproof and what is the waterproof level?

2. Are there any special requirements for input voltage / output voltage?

3. Are there any special requirements for the battery. Generally, there are many power lithium batteries, and some of the more demanding ones will also choose lithium iron phosphate batteries, nickel-chromium batteries, and nickel-hydrogen batteries.



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Car battery is dead, jump starter can save your car battery

If you’ve ever tried to start your car but only heard a faint click, you might be familiar with scrambling for jumpers and willingness to provide a start. Maybe you even call roadside assistance and they show up in a fancy box that somehow manages to start your car.


Devices that provide a quick start without a second car are often called jump starters, and they are actually reasonably priced and easy to use. They do need to be recharged from time to time, but it is a small investment of time and money if the battery is trapped in the middle of nowhere.

All technical information about Jump Starters
There are many different jump starters, but they all share some common features.

At the heart of each jumper box is a sealed lead-acid or lead-acid battery cell that is permanently connected to the alligator clip jumper cable. Because the battery is sealed, it can hardly spill or leak even if the device is turned over. Batteries are also often sealed in a plastic case to further isolate the battery.

Crank amps and spare capacity vary from one jumpbox, so while some of them have little juice to start a golf cart, others can start a large diesel engine designed to start counting between charges Ten cars and in bad weather conditions.

In addition to batteries and permanently connected jumper cables, some jump starters have the following features:

Air Compressor—Easily inflates tires if leaks occur.
Emergency Lights—If you have to start your car quickly, change tires, or do any other emergency roadside work, light up the road.
Radio-Provide some entertainment at camp or at the end, or listen to important radio during emergencies and natural disasters.
12 Volt Accessory Socket—Powers 12 Volt devices such as phone chargers.
Inverter—It can power almost any electronic device, although using an inverter reduces the ability of the jumper box to provide jumper activation until you recharge it again.

Although none of these features are absolutely necessary, and you can buy cheap jump boxes that don’t have these fancy things, most of them are convenient on the go.

Use Jump Launcher Safely
To use jump boxes safely, you need to follow the same basic steps as a normal jump start.

If your vehicle has any special procedures, you should follow them. Otherwise, connect the positive jumper box cable to the positive battery connection, and then connect the negative jumper box cable to a good ground.

Although you can connect the negative jumper box cable to the negative battery terminal, it is safer to use a ground somewhere on the engine or chassis.

Although the process is similar, using jump boxes poses other problems.

Because the cables of most jump boxes are often short, the jump box must usually be somewhere in the engine compartment. This poses a potential hazard, so it is important to ensure that the device is not near a radiator fan, any accessory belts or pulleys, or placed in a way that could move any electrical connections or sensors.

Jump starter usage other than jump start
Jump boxes are primarily designed for jump start, but they can also be used for many other things. Even the most basic equipment often comes with a built-in 12 volt accessory socket that can be used to power any 12 volt equipment.

This means you can use a jumper box to charge your phone, power your laptop or run any other device with a 12-volt power adapter. They also help with trailing, camping, and other activities because they allow you to power electronic devices without draining the car battery.

If you have the right adapter, a jump box with features like a tire compressor can also be used to inflate car tires, beach toys and other inflatable items.

Of course, it’s always important to remember that the core of a jump box is usually a sealed lead-acid battery. Therefore, although they usually do not leak, you should not just assume that you will never leak. For extra safety, choose a jump box with a built-in gel or absorbent glass mat (AGM) battery.



Linsheng specializes in manufacturing high-quality jump starter products for customers in China. It has its own laboratory and the most advanced testing equipment in the industry to ensure product quality. Is an excellent supplier of jump starters. For details, please visit: https://www.linsheng.com

The operating temperature is important because it helps determine how the system will operate on any given day. Fluctuations in temperature (for example, if your system is installed outdoors) can greatly affect the performance of the compressor.

Keep in mind that cooler air actually helps the compressor to perform at its best. Cold air is drier, and moisture (as we have repeatedly mentioned in this blog) is an enemy.

So, what is the correct working temperature?

The interval between 50 and 85 degrees Fahrenheit.

Although cold air is the best choice, you should avoid the actual freezing point as much as possible. Therefore, keeping the operating temperature of the air compressor system at 50 degrees or more ensures a certain amount of manoeuvre before reaching 32 degrees. But keep in mind that the moisture in the air can freeze and cause trouble. In addition, the oil will thicken with the dripping of mercury - for safety reasons, please stick to 50 degrees or more.

In terms of extreme heat, most rotary screw compressors can operate at temperatures up to 105 degrees, but please note that the compressor’s cooler must be completely clean and synthetic oil must be used. Miss one of the requirements and your compressor may shut down.

Most compressed air dryers have a maximum ambient temperature of 100 degrees and a range of 15 degrees, which gives us a maximum temperature of 85 degrees.

Therefore, your compressor system has a "just" temperature between 50 and 85 degrees.

Compressed air can also be used in automotive areas to provide power. Linsheng produces high quality automotive air compressors, welcome to buy and consult: https://www.linsheng.com

Installing an exit sign or emergency light can be relatively straightforward, especially if you have experience with hanging or installing other objects, or basic tooling knowledge. Most lights or signs will be accompanied by instructions. If not, most manufacturers will have a customer service phone that you can call to get help with a specific model.

Before emergency lighting installation

When installing emergency lights, be sure to contact your electrician if you are not familiar with the proper safety procedures. The emergency light will be connected to the wires of the building or home so that it can sense when the power is disconnected. Even if a power outage or circuit breaker trip occurs, the unit is signaled to have power and has 90 minutes of backup power to illuminate the path to the exit.

Of course, before installing the emergency light, be sure to trip the circuit breaker connected to the emergency light to avoid electric shock and electric shock. Before disabling the power supply, check that all backup batteries in the device are properly installed. After the power is turned off, the instructions will guide you to connect the power properly.

Installation instructions are included with each unit. Before performing any installation steps, make sure that the circuit where the emergency light is to be installed is turned off.

In order to properly install the emergency light, two or three connections need to be made in the electrical system. Incorrect installation of an emergency light can damage the transformer and the board, rendering the equipment unusable and damaged.

First, determine the connection voltage to the emergency lighting device to be 120 volts or 277 volts. Next, check the connections on the device and there will be 3 or 4 wires with color and label:

120v wire (black)
277v wire (red)
Ordinary line (white)
Ground wire (green - not all models are included)
Connect the correct voltage and common wires to the electrical conduit. If your emergency lighting requires a grounding wire, connect it. Do not connect the 120V and 277V lines at the same time - the unit will malfunction.

Turn on the circuit power, charge the emergency light and its backup battery for 24 hours, then test the backup battery to the full 90 minute capacity.


Emergency light installer
If your wall is not yet wired for the fixture, you will need to consult an electrician to make the necessary wiring. Depending on the device, it is usually installed or partially installed before wiring. Wiring uses a 120 or 277v AC power supply. This allows you to charge the battery when you are using the building’s power supply, and then use the battery power directly when the building’s power is stopped.

Most emergency lights are mounted using mounting brackets, while others have prefabricated areas for securing the screws to the wall studs through the back. It is important to be familiar with your specific model and its installation instructions. Typically, once screws, screws or brackets are used to mount the equipment, these screws and wires are covered by a metal or thermoplastic casing.

Exit sign installer
The emergency exit combination mark is a simple and effective solution for applications that require both an exit sign and an emergency light.

When installing the exit sign, many of the same considerations as installing an emergency light will also work. It must be determined whether the signage is to be connected to the building’s power source or to the backup generator, or only to the building’s power source. Depending on the design, some export signs will have a side mounting bracket that leads to the light that hangs the sign. Other signs will be screwed into the studs from the back of the sign and the panel will slide forward to cover the bulb and casing. As with the emergency light, an electrician needs to be consulted if the marking has not been routed.


Linsheng is a professional Emergency Light Manufacturers and Emergency Light Suppliers in China. It has its own laboratory and the most advanced testing equipment in the industry to ensure product quality. A good reputation in the international market. Our products are sold worldwide. Our products have passed "CE, GS, UL and other certifications". We sincerely welcome to cooperate with us. Https://www.linsheng.com

The function of emergency lighting is to not illuminate the building during a power outage. The role of emergency lighting is to illuminate the critical areas required in an emergency. These areas include:

Escape route – Emergency lighting should help people see any passage or stairs leading to the exit.
In addition, lighting should be used to ensure that people know of any changes in direction.

If not explicitly stated, they should also be used to highlight the dangers that may cause the person to stumble. In the dark, everyday obstacles can become extremely dangerous or even fatal when people try to leave the area.

Fire-fighting equipment and first-aid kits – highlighting the equipment with emergency lights can help staff or rescuers save lives.

Even if the building’s policy is that people should go to the exit without a fire, whether it is safe or not, lighting fire and first aid equipment is useful for emergency teams entering the building.

Open areas, also known as "anti-panic" lighting – are different from alternate lighting. When these indicators are lit, it is certainly not the usual situation. The aim is to illuminate large open spaces and make people feel safe enough to evacuate buildings.

By focusing on these lighting needs, you can ensure that your employees and other people in the building can escape in an emergency.

Type of emergency lighting

During emergency power outages, various emergency lighting can illuminate the path to the fire exit. Emergency lighting varies in form, including internal or external bulkheads, dual-point and illuminated exit signs.

It is not enough to just put the lights where you think you need them. Fire safety experts should be involved in ensuring that installed regulations are met and that life is protected as effectively as possible.

We hope that you will never need to use emergency lighting. However, if you prefer, we want you to have the lighting that best suits your needs. A high quality, properly installed emergency lighting system prevents injury and saves lives. Emergency lighting should not be compromised.

Always make sure you have the correct documentation for your lighting and that you test it regularly and thoroughly, at least as required. This will help you avoid any legal issues, but more importantly, it will help ensure the safety of you and everyone who uses the building.

It is wise to buy lights and install and maintain them by the same company. This helps ensure that people involved with your emergency lighting are familiar with it and can provide consistent performance and service. Reputable companies that provide emergency lighting, installation and maintenance will be familiar with all relevant regulations.

Repair or non-repair parts

If you are asked if you need accessories that are not maintained or not maintained, you will be asked if you want an emergency light to be operated by yourself or an emergency light that lights up automatically during a power outage.

With the assembled state, the illumination can be wired to permanently illuminate or can be activated and deactivated by a light switch.

If maintenance is not performed, your emergency light will automatically start when the unit is powered off. In this case, the light can continue to illuminate for about three hours, which gives most people enough time to escape the affected area.

Maintenance-free accessories should be tested periodically to ensure proper operation. You don’t want it to disappoint you when you lose power. Depending on the emergency light you choose, some components may malfunction when not in use for long periods of time.

Regularly test emergency lighting

Not only do you need regular breaks to help you meet your emergency lighting regulations, but you can also save money.

When the emergency light is powered by the mains, if the mains is interrupted, the backup battery will start. In order for these batteries to work effectively, they need to be used from time to time. If they are used only when necessary, they will die or perform poorly when they are most needed. The performance of emergency lighting batteries that are periodically charged and discharged will be longer than being ignored.

When the backup batteries are filled with the onboard charger of the luminaire, they may overcharge and lose their effectiveness. Therefore, following the regulations and manufacturer’s recommendations for testing, you may run out of battery power and reduce overcharging, making your battery more likely to pass inspections and be used in an emergency.

It is both cumbersome and avoidable to replace the backup battery, so please test it regularly to avoid this.

Linsheng specializes in the production and supply of quality emergency lighting products in China, with its own laboratory and the most advanced testing equipment in the industry to ensure product quality. For more information visit: https://www.linsheng.com

LED portable emergency light is light, convenient, does not rely on external power supply, does not need a battery, does not cause environmental pollution due to waste battery, light the lamp by hand, shake for 5 minutes and 1 hour to light up, fully charged More than 20 hours of continuous lighting. The LED hand lights that were shipped to the disaster area used 5 white and 4 red LEDs as the light source. White light illumination, red light alarm, especially suitable for situations where the disaster area cannot be powered normally. At present, these high-tech lighting products play an important role in the earthquake relief work in the disaster areas, bringing great convenience to the search and rescue work. It will continue to play an important role in minimizing the damage caused by disasters and helping the people in the affected areas to finally overcome the disaster.


In the lighting industry, emergency lighting is a very special field, which is related to people’s life and property safety and social security. Therefore, the emergency lighting market has always been an important market in the field of lighting, and the number of sales has increased year by year. year. Due to the low barriers to entry in the industry, there are hundreds of emergency light manufacturers across the country, and the competition is more intense. In recent years, LED portable lamps using LED lighting technology have gradually matured, and their advantages have gradually emerged compared to other emergency lighting. As a fast all-weather emergency lighting device, it has been widely used for outdoor travel, field operations, border checkpoints, alpine grasslands, travel and sudden disasters, and other lighting applications.

For more details, please visit Linsheng : https:// /www.linsheng.com/

1. Carefully check the movement of the cylinder and each moving part, press the “listen” sound to distinguish whether the work is normal. If abnormal sound is found, stop the inspection immediately;

2. Pay attention to the pressure gauges at all levels, the pressure gauges on the gas tanks and coolers, and whether the indicated values ​​of the lubricant pressure gauges are within the specified range;

3. Check if the cooling water temperature and flow are normal;

4. Check the movement mechanism of the oil supply system and the lubricating oil condition (some compressors with plexiglass plate can directly see the crosshead movement and the supply of lubricating oil on the side of the main body of the crosshead rail); For one-way oil injection, the oil can be inspected to the cylinder oiler; whether it should be timely, the oil pool of the oil pool observed at full load is at the low mark line (such as low) (the oil level should be stopped to check);

5. Check the temperature of the fuselage, crankcase, beam, suction, exhaust, cutting cover, etc. by hand;

6. Pay attention to the temperature rise of the motor, the temperature and voltmeter of the bearing, whether the indication of the ammeter is normal, the current should not exceed the rated current of the motor, if it is exceeded, find the cause or stop the inspection;

7. Rated current (if exceeded), find the cause or stop the check.

8. Always check the motor for any debris or even conductive materials, whether the coil is damaged, the friction between the stator and the rotor, otherwise the motor will burn after starting;

9. If the water-cooled compressor cannot be immediately introduced into the water, avoid uneven cylinder cracks in winter. After the shutdown, the cooling water should be prevented from rupturing the cylinder;

10. Check if the compressor is vibrating, if the anchor screws are loose and falling;

11. Check the pressure regulator or load regulator to see if the safety cut-off is sensitive;

12. Pay attention to the hygiene of the compressor and its equipment and environment;

13. Gas storage tanks, coolers, oil-water separators should always release oil and water;

14. Lubrication is used for precipitation and filtration. Compressed oils should be used differently in winter and summer.


Linsheng main products include auto parts, power tools, hardware, such as: jump starters, air compressors, emergency lights, etc. We have our own laboratory and the most advanced testing equipment in the industry to ensure product quality. Products have been exported to Europe, America, Southeast Asia and other countries, and enjoy high reputation in the international market. Our aim is to ’survive by quality’ to serve you is our goal.

Follow us for more product details and related technical information: https://www.linsheng.com

Emergency lighting is useful when positioning a building’s exit in a power outage or other emergency form. The emergency light is usually powered by the battery, so it works even when the power is off, but you must check the battery regularly to make sure it works. Emergency lighting is only useful if it is well maintained and a new battery should always be installed in the light. If you have a suitable spare battery, you can quickly replace the emergency light battery.

Linsheng describes the replacement steps for the emergency light battery:

step 1
Place the emergency light battery compartment on the lamp. The exit sign usually has a compartment in the space directly above the word "export".

Step 2
Open the compartment manually or unscrew it with a screwdriver, depending on your light.

third step
If so, pull the harness out of the battery. Otherwise, the battery will stick to the leads. Just pop it up.

the fourth step
Insert the new battery into the harness, then reinsert the battery into the battery compartment or hold the new battery against the lead.

Step 5
Replace the cover and press the Test button on the light to verify that the battery is working properly and that the light is energized.



Linsheng is a professional Emergency Light Manufacturers and Emergency Light Suppliers in China. We have built a good foundation for domestic and foreign companies - China’s well-known professional brands. We are determined not to “assembly factory”, invest heavily in modern processing equipment and advanced testing equipment to realize our own production machines and master the initiative of quality first. Constantly challenge and perfect ourselves, maintain our price advantage and quality advantage, and satisfy our customers. For more information visit: https://www.linsheng.com

These are the batteries that are talking about, and the battery contains electrical energy.

If handled improperly, it can be dangerous. There is always the risk of injury, damage to the battery or starter and fire. Portable jump starters have a variety of built-in safety features, which is a good thing.

Short-circuit protection – prevents large currents from flowing from positive clamp to negative clamp when accidentally touching together
Overcurrent protection – prevents damage to the actuator by preventing it from supplying current beyond the peak limit
Overload protection – prevents the current received by the jumper packet from exceeding the manufacturer’s specified current while charging
Overvoltage protection – prevents the voltage received by the jumper group from exceeding the voltage specified by the manufacturer during charging
Overcharge protection – when the battery of the jump starter is fully charged, this will “float” to charge the device and prevent excessive voltage from being applied to the battery
Most jump starters have these built-in protections, but always check the listed safety features to ensure safety. However, there must be an optional security feature.

Reverse polarity protection prevents damage to the battery when you connect the cable clamp to the battery terminals.

Red is positive and black is negative. The positive cable is connected to the positive terminal and the negative cable is connected to the negative terminal. Messed up, you may kill the battery forever. You may also damage other parts of the electrical system.

Linsheng explains: The excellent portable jump starter has reverse polarity protection. If the cable is not connected properly, the warning light will illuminate. Some even sound an alarm. The best part is that the circuit is not complete, so you have the opportunity to switch cables before driving.

https://www.linsheng.com

Most high school entrance exams in China are a future expectation for students and parents. University entrance exams are very important for students and their parents, so no emergency is allowed these days. Many parents take their sons or daughters to take the test by self-driving car. At the same time, they are a lot of good drivers. It is very good to pick up students free of charge these days. This shows that our society pays great attention to this test and is the door for Chinese students to enter the university.

Have you considered that your car has failed during the college entrance examination, your car can’t start, but you have 2 or 3 students in your car. At the same time, your car is in a remote area, don’t take the bus, what should you do now? do? The time for students to take the exam is tight and there is not enough time to call you for a vehicle rescue service.

You should consider helping students, but you may delay the test time of these students, they will forgive you, even hate you, even if they understand that this segment is not your idea, you do not want this to happen, but the college entrance examination It is very important for students, if their time is delayed, they will be angry with you.

You may feel helpless now, because you don’t have the equipment to get your car started, there is not enough time to give you a taxi rescue service, in addition, the students start crying in the car, there is no other car around you this time. What should you do now?

When the car battery is unable to supply power, the jump starter is used for car starting, and most people may not realize that the jump starter unit may be helpful for inspection.


In fact, if you have a jump starter, this problem is easy to fix, it can start your car and let the students take the test on time.

A jump starter is very easy to operate, it’s small, it’s very convenient to carry, and the price is not high. If your car can’t start, you don’t have to call the vehicle rescue service, it can save you a lot of money.

It seems to be a mobile power supply, but it can start the car, and the mobile power supply does not provide enough current for the car to start. It is difficult to predict an emergency situation, and manual jump starter preparation is necessary.

Linsheng is a professional Jump Start Manufacturers and Jump Start Suppliers in China. Have your own laboratory and the industry’s most advanced testing equipment to ensure product quality. We constantly challenge and improve ourselves, maintain our price advantage and quality advantage, and satisfy our customers. Our R&D team will continue to work hard to develop more affordable spotlights, work lights, emergency power supplies, automotive air pumps, vacuum cleaners and portable power tools.


To view Linsheng Jump Starter , please click: https://www.linsheng.com/product/jump-start/

01 Is it necessary to buy a vacuum cleaner?

Is it necessary to buy a vacuum cleaner? Many people will think of this question, first come to give you the answer: worth buying! It is necessary to buy! Because it can not only clean the ground, but also with different tips, you can clean the beds, corners, cracks and other places in your home, and you can also clean your car.

a. For the hair you drop every day: For girls, a lot of long hair is dropped every day, and normally 50-100 hairs per day are lost. The hair is light in weight, very difficult to clean, and the hair is also widely distributed, not only in the bathroom, living room, bedroom floor, but also in the sofa and bed. It is difficult to clean with traditional tools such as brooms and mops, and the vacuum cleaner can solve the problem of hair cleaning.

b. In order to clean the whole house: How does the whole house cleaning include? Top of the cabinet, bottom of the furniture, curtains, window gaps, ceilings, sofas, home appliances, lamps, mattresses... Can you really clean yourself? Is there such a comprehensive tool? The vacuum cleaner can be used to replace different tips to solve different cleaning problems, even your car can be easily cleaned.

c. In order not to let parents bend over: parents are older, but they still need to clean at home every day, although they will not be able to do it, but in order to be clean, there is no way to watch the old man bending over and cleaning, are you not? What should I do for them? It’s no exaggeration to tell you: vacuum cleaners can make it easier for parents to clean.

d. In order to say goodbye to pet troubles: For pet owners, the scene of flying hair is really a headache for many people, so cleaning the hair of the pet is a basic skill of the pet, and in the season of changing the hair, this door The difficulty of homework has greatly increased. The amount of hair loss is not soaring, and the hair that has fallen off will drift to every corner of the house. In addition, cat and dog allergens such as pet dander that are raised in the cleaning will also be detrimental to health, and the vacuum cleaner is very good for you to trouble the other pet hair.

02 There is no need to buy a vacuum cleaner with a sweeping robot

It is still necessary to buy a vacuum cleaner with a sweeper. For cleaning, the vacuum cleaner belongs to the just-needed product. If it is a comparison, the vacuum cleaner product should be preferred; the sweeping robot belongs to the product of improving quality life. It is still impossible to liberate your hands. With a sweeping robot, you still need a vacuum cleaner for auxiliary cleaning.

Reasons to buy a vacuum cleaner for you:
1. The sweeping robot can clean the ground autonomously, but above the ground? Also need a vacuum cleaner;
2. The sweeping machine has a good effect on the clean and dusty dust on the ground, and it may not be able to suck clean if the stubborn stains are repeated. For hair, small paper scraps, and particulate matter can be easily cleaned, but in the face of large particles, large paper scraps, some power is not enough.




Linsheng Electrical Company specializes in manufacturing and supplying high quality vacuum cleaner products in China. For more information, please visit the message: https://www.linsheng.com , we will answer your doubts in a timely and professional manner.

Air compressor customers must identify tools or equipment that will consume large amounts of air at the highest pressures. Linsheng - Auto parts manufacturing technicians have the knowledge to help customers make the right purchase decisions.

Your excellent "rule of thumb" is to always buy more air compressors than you need!


What is the delivery of CFM?

This will be one of the most important numbers when you buy a new air compressor. (Assuming the price has no object) Many air compressor manufacturers will release their DISPLACED CFM number. The displaced CFM should not be considered when purchasing an air compressor. DISPLACED CFM is a CFM produced by an air compressor that operates at 100% efficiency in a perfect environment. This is not the case in your store!

You want to know the CFM delivered!
Deliverable CFM is an available air made by an air compressor in a real-life environment.
Delivering CFM is running your tool!
When the PSI is reduced, the delivered CFM will increase.
As the PSI increases, the delivered CFM will decrease.

We recommend that you purchase an air compressor that is 1.5 times faster than the CFM of your shop’s largest air consumption machine. If you will be using multiple pneumatic tools at the same time, you must add together the CFM requirements for the "in use" tool.

Make sure your delivery CFM requires a measurement equal to or higher than the correct PSI.


What size of MOTOR should I look for in Air Compressor?

This should not be the deciding factor when buying an air compressor. Some air compressor manufacturers (and car manufacturers) use false advertising to imply that their "peak" horsepower is the same as their "normal operation" horsepower. When the motor is started, the "peak" horsepower may be five times the "normal" horsepower. The correct way to rate the motor power is to measure horsepower after the motor is running at the specified RPM and the starter winding is detached.

A car may have more horsepower than another car (BIGGER MOTOR), but that doesn’t mean that the car with the best horsepower is the fastest or most effective. There are many factors that contribute to the overall performance of the car and air compressor.


How compressor pumps and motors are related

Reciprocating air compressors use a single or two stage compressor pump to make compressed air. The most efficient compressor is the one that provides the most CFM at the slowest speed. Small or inefficient compressor pumps that rotate at very high speeds can generate a lot of air, but only in a short amount of time! Your Corvette can cruise at a speed of 50 mph for two! But how long does it last? The motor and compressor pumps need to be perfectly matched to allow the compressor to operate at maximum efficiency. If the motor is too small, the compressor pump will not "rotate" with the correct RPM. A motor that is too small may overheat (stall) and attempt to power an oversized compressor pump. If the motor is too large, the compressor pump may "rotate" with too much RPM and the compressor pump will have a very short life.

Of course, the size of the pulleys for the motor and compressor pumps can vary the RPM of the compressor pump. These pulley sizes can be varied to increase or decrease the compressor pump RPM. However, in order to maximize the performance and life of the air compressor, the motor and compressor should be properly matched.


Do I need a single stage air compressor?

A single stage air compressor pump draws into the atmosphere and compresses air in a single piston stroke. The single stage air compressor pump produces approximately 150 PSI of air at a time. It is normal for a single stage air compressor pump to deliver more CFM (lower PSI) than a two stage compressor pump. The single stage compressor pump produces compressed air during each piston revolution. A single stage air compressor can have one cylinder or multiple cylinders. After the complete piston stroke is completed, each cylinder delivers compressed air directly to the air receiver. If there are multiple cylinders on the compressor, they all have an air filter; then you have a single stage air compressor. All cylinders draw air into the cylinder. If your tool or equipment requires high capacity at lower pressures, a single-stage air compressor may be your answer.


Do I need a two-stage air compressor?

Many pneumatic tools require elevated air pressure, which can only be produced by a two-stage reciprocating air compressor. The two-stage air compressor pump works much like a single-stage air compressor pump. The difference is that the two-stage air compressor pump compresses the air in one cylinder and then moves the compressed air to another cylinder to compress again. The two-stage air compressor pump is capable of producing up to 200 PSI of compressed air. A two-stage air compressor pump must have at least two cylinders. A cylinder is usually larger than the other cylinder. The larger cylinder (first stage - cylinder with air filter) draws into the atmosphere and the piston compresses the atmosphere to approximately 150 PSI. The compressed air (heat transferred through the finned tube) is then transferred to a smaller diameter cylinder that recompresses the air to about 175 PSI. This "double compressed air" is forced into the air receiving tank. An inline check valve prevents compressed air from flowing back from the air receiver to the high pressure compressor cylinder. This online check valve is also used in single stage air compressors. A two-stage air compressor pump can have multiple cylinders. However, each two-stage air compressor pump must have at least one low pressure cylinder and one high pressure cylinder.


What size tank do I need?

The air tank stores compressed air made by an air compressor pump. The air compressor is "temporarily closed" when the PSI of the air in the tank reaches a preset air pressure determined by the setting on the pressure switch. When the PSI in the air tank drops below the minimum preset pressure, the air compressor automatically turns on and begins the process of "making compressed air." Aerodynamic tools that operate in short-term air consumption require only a small gas tank to meet their needs. Sandblasting cabinets, track sanders and other high volume air consumption tools require larger capacity air cans. The air stored in the air receiving tank is cooler than the air produced by the air compressor pump. When the desired pressure is reached, the air receiver tank maintains pressurized air and allows the air compressor pump and motor to stop (and cool). If your air compressor pump and motor are too small to provide enough CFM, a larger tank is actually a burden. The motor and air compressor pump are insufficient before the air is delivered to the pneumatic tool, and the air tank must be filled and pressurized. Since the compressor pump and motor are too small, a larger fuel tank is a burden. Bigger tanks = longer waiting!

Keep in mind that as air pressure increases, more available air can be stored in a fixed area. The pressure is related to the storage area. The "more air" in a 60 gallon receiver pressurized to 175 PSI is "more air" in an 80 gallon receiver pressurized to 135 PSI.


Why do some air compressors have magnetic starters... What are they?

The magnetic starter is the "thought ceiling" of the air compressor motor. Magnetic starters are electromagnetically operated switches that provide a safe method for starting certain motors under large motor loads. If the starter detects a motor overload condition, the overload relay in the magnetic starter will prevent the supply voltage from supplying power to the motor. The heater (in series) is responsible for allowing current to reach the motor (and start it) or to prevent current from reaching the motor (to prevent motor failure). The magnetic actuator will allow the motor (when the compressor pump is properly sized) to operate at 100% duty cycle. Heavy duty pressure switches (using some motors) can also be used to simulate the action of the magnetic starter.


What is the duty cycle and how does it affect the operation of my air compressor?

Many air compressor pumps and motors are rated for continuous operation. If they close from time to time, it will be fine. This is a 100% duty cycle. Other compressor motors need to rest regularly for about three minutes every ten minutes to prevent them from overheating. If the air compressor is running for 7 minutes and stays for 3 minutes, the duty cycle will be rated as 70%. If 70% is the factory recommended compressor duty cycle and the compressor run time exceeds 70%, the pump and motor will overheat, causing damage. A magnetic starter or heavy duty pressure switch will increase the duty cycle of most motors. Most commercial grade air compressors use heavy duty motors with a 100% duty cycle. (When the magnetic starter is connected to the motor) the heavy duty pressure switch also increases the duty cycle of most motors.

https://www.linsheng.com