An air compressor is an extremely useful tool. It can help you do dozens of tasks, from filling tires to stripping paint to grinding welds on auto body repairs. There are also dozens of different models.
Here we will discuss The Best Cheap Air Compressor For Painting Cars.
Best Cheap Air Compressor For Painting Cars
An electric or thermal motor turns a cylinder which compresses the air in a tank. Once the air is stored at the correct pressure, the engine stops and the compressor is ready to run. If the compressor does not have a bowl, then the motor will run throughout use.
You can use the air for simple inflation or benefit from the pneumatic pressure to operate various tools (drill, grinder, sander).
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Best Cheap Air Compressor For Painting Cars | Comparison Table 2021
|AstroAI Portable Air Compressor Pump, Digital Tire Inflator 12V DC Electric Gauge with Larger Air Flow 35L/Min, LED Light, Overheat Protection, Extra Nozzle Adaptors and Fuse, Yellow||AstroAI||Check Price|
|Stark Portable Quiet Air Compressor 10-Gallon Tank 3.5HP Air Compressortra Quiet Compressor w/Wheel||Stark USA||Check Price|
|BILT HARD Air Compressor, 8 Gallon 150 PSI 2HP, [email protected], Oil Free, Max Speed 3400 RPM, Portable with Wheels||BILT HARD||Check Price|
|CRAFTSMAN Air Compressor, 2 Gallon Portable Air Compressor, Twin Tank, 1/3 HP Oil-Free Max 125 PSI Pressure, Model: CMXECXA0220242, Red||Craftsman||Check Price|
|Metabo HPT "THE TANK" Pancake Air Compressor, 200 PSI, 6 Gallon (EC914S)||Metabo HPT||Check Price|
|BOSTITCH Air Compressor Kit, Oil-Free, 6 Gallon, 150 PSI (BTFP02012-WPK)||Bostitch||Check Price|
|SS5 5HP 60 Gallon Single Stage Air Compressor (230V, Single Phase)||Ingersoll Rand||Check Price|
|NorthStar High-Flow Electric Air Compressor - 4.7 HP, 60-Gallon Vertical Tank||NorthStar||Check Price|
|Flexzilla Pro Air Compressor with Silencer, Stationary, 7.5 HP, 80 Gallon, 1-Phase, 2-Stage, Vertical - FXS07V080V1||Flexzilla||Check Price|
Best Cheap Air Compressor For Painting Cars | 2021 Products Overview
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According to what criteria should you choose your air compressor for painting Car?
The volume of the tank
The capacity of the tank plays an essential role in the operating time of the compressor. Indeed, when the latter is empty, the compressor must restart its motor to compress a certain quantity of air again. This implies a waiting time. For long tasks such as painting or sanding, it is therefore interesting to opt for a well-sized tank, which is not the case for tire inflation or workshop cleaning.
This is the air capacity returned by the compressor. The higher the flow, the more it is possible to use different tools and to benefit from sufficient power (the air delivery capacity is directly dependent on the horsepower of the compressor motor). The airflow is calculated in l / min or in m³ / h. To find the flow rate you need, read the air consumption requirement of your tools and multiply this number by 1.5.
The most powerful compressors are usually thermal, but models intended for homes and DIY enthusiasts are most often electric. In these electric versions, we find the classic connection to the mains, or battery operation which allows more mobility. Battery-powered compressors are portable models that perform basic tasks. Some compressors can also work with 12 V, which allows them to be plugged into the cigarette lighter socket of the car.
Portable compressors work without oil and therefore do not require any maintenance on this site. On the other hand, the more powerful models need to lubricate their cylinders, which inevitably involves minimum maintenance (topping up oil and draining).
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Weight and bulk
Buy an air compressor based on available space and your ability to carry it. Models under 20 kg are easy to transport and compact. But for regular use, opt for wheeled models. Heavier and bulky, they weigh 20 to 150 kg. Some professional models are permanently fixed in a workshop.
Depending on the type of compressor you buy, you will need a number of accessories. There is in particular the pressure switch which automatically triggers the motor whenever the tank falls below 4 bars. The pressure regulator is also useful, as is the pressure gauge indicating the air pressure in the tank. For large air compressors, a full stretcher may be needed to move it more easily.
Swivel wheels are suitable in tight, inflatable places if you need to move the compressor over gravel or sand. As for the direct tank outlet, it provides an alternative air outlet at 8 bars, in particular for impact wrenches. To regulate the heat of the head during prolonged use, the cooler will be essential. A swiveling air filter retains impurities from the ambient air, which will prevent damage to the compression head. A simple filter regulator provides clean, dry air at the outlet.
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The different compression groups
The motor used to fill the tank with compressed air is called a compressor unit. There are 3 types of compression groups on the market.
The oil-free group equips portable compressors. It is intended for occasional use, generally for short periods. The advantage is that you won’t have to add more oil to lubricate. On the other hand, the service life is shortened. Note that it is often noisy.
Cast iron group
Unlike the oil-free group, the cast iron group benefits from better service life. The cooling of the group is also better given the optimal heat exchange due to the cast iron. This type of compressor unit is fitted to large compressors under heavy strain.
It is the most widely used compressor unit. Indeed, it meets the needs of the majority of DIY enthusiasts. However, avoid using an aluminum group for professional purposes, as the cooling is poorer and slower than the cast iron group.
Impurities in the intake air can damage the compressor unit. To prevent this problem, manufacturers have equipped compressors with air filters. Professional models also have filters at the tank outlet allowing them to provide clean, dry air.
Best Cheap Air Compressor For Painting Cars | Video Explanation
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How to use your air compressor?
- Use your compressor in a clean and open environment.
- Wear appropriate clothing for the work being done (protective glasses, gloves, and earmuffs.
- Before starting up, check the direction of rotation of the compression block and the oil level.
- Change the oil every 100 hours of use.
- Also, be sure to drain the condensation once a week and clean the air filter regularly.
- For any tank model, it is recommended to carry out a mine pass every 5 years to ensure that it works properly.
Maintenance of an air compressor
If you want the compressor to last, you will need to perform periodic maintenance. This is especially true for single-cylinder and twin-cylinder air compressors.
A major drawback is the suction of ambient air: by sucking the air, the compressor unit also sucks up particles and dust that can damage pneumatic tools. Make sure it is clean to always have maximum efficiency and long service life.
The compression of humid air generates condensation inside the tank. So that this stagnant water does not eat away at the metal or freeze, manufacturers have fitted the compressors with a bleed screw located under the tank. Regular draining of the tank is necessary before a long period of inactivity. Portable air compressors are not affected.
Oil change and level
For single-cylinder and twin-cylinder air compressors, the oil level should be checked periodically. Add oil if necessary and change it at least once a year. Failure to lubricate a single or twin cylinder compressor significantly reduces its life.
An air compressor is a noisy tool, no offense to manufacturers who sometimes brag about their supposedly silent compressor. In use, wear earmuffs or at least earplugs. The compressor is also dangerous. To prevent accidents, learn about the operating pressures of your pneumatic tools.
In addition, some air compressors require periodic checks and inspections every 40 months. Many accidents occur due to water-eaten tanks or faulty pressure switches and pressure regulators. All the more reason to check everything before use.
For small pneumatic tools, use an air supply hose with an inner diameter of 6 to 8 mm. For large tools, use a pipe with an internal diameter of 10 to 12 mm. And to avoid loss of efficiency, maintain the same inside diameter from the air outlet of the compressor to the connection nipple on the tool.
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Vertical or horizontal air compressor?
The vertical compressor is an oil-free device. It requires an outlet oiler to lubricate tools such as a drill or sander. This first model is easier to maintain thanks to the oil change. Compared to the horizontal model, the vertical compressor stands upright and therefore takes up very little space. On the other hand, it is less easy to move it.
The horizontal compressor is also called a lubricated compressor. This implies that the air emitted by the horizontal model contains a little oil, which requires an oil separator filter for its use. The difference is also in the handling. The horizontal compressor is easier to move. On the other hand, it takes up much more space than the vertical type.
These 2 configurations can give the same efficiency since they have similar air flow rates and regulation systems. Only manipulation makes it possible to differentiate them. To choose, above all determine your real needs. If saving space for storage and time for maintenance is the priority, the vertical compressor is for you. On the other hand, if you need to move often, it is better to use a horizontal compressor.
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Pay attention to the time of use
It is important to know that an air compressor should not be used more than 50% of its actual operating time. As it expands enough energy, it must rest half the time to avoid the risk of overheating.
Consider adding an additional tank
Thanks to a pneumatic extension, it is possible to add an additional tank to your air compressor. This will not only allow you to increase the volume of air available but also to work in all practicality. Indeed, due to the absence of a motor, the additional tank is very light and easy to handle.
Limit the noise of your air compressor
The air compressor is quite a noisy device. To remedy this, take a sealed box and place it at the air inlet of the cylinder. Then connect the end of this box with an air filter trapped in a plastic box. Thanks to this sound trap, the noise of your air compressor will be reduced considerably.
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Store it properly
Your air compressor should be placed in a location with a clean, dry air inlet. Indeed, subject to wet conditions, your machine may be damaged and present certain electrical malfunctions.
Carry out maintenance actions at suitable times
Note that it is important not to add or change the oil and fuel in your air compressor while it is running, or when it has been recently used. If this happens, there is a good chance that your device will catch fire and cause a fire.
Hi, I am David Bailey a dedicated writer from Linden Bridge School with a degree in mechanical engineering and a degree in marketing. I strive to simplify complex subjects and like to explain complex and technical matters in an easy-to-understand manner. Read More Here