Air compressors account for a significant amount of electricity used in industries. Air compressors are used in a variety of industries to supply process requirements, to operate pneumatic tools and equipment, and to meet instrumentation needs.
Compressors are broadly classified as: Positive displacement compressor and Dynamic compressor. Positive displacement compressors increase the pressure of the gas by reducing the volume. They are further classified as reciprocating and rotary compressors. Dynamic compressors increase the air velocity, which is then converted to increased pressure at the outlet. They are basically centrifugal compressors and are further classified as radial and axial flow types.
What to look for?
Cheap and effective air compressors make this purpose, even better. Some mandatory things that you need to check before buying an air compressor. For piston driven compressor, check if it is interlocked by a rotary screw or not because this screw makes the compressor suitable for powerful jobs.
Next, check about the CFM of the compressor. Also, you have to check SCFM as this indicates the air flow capacity of a compressor. After that check for the PSI rating of the compressor which indicates the maximum operating power of the compressor. Check for the horsepower, as you need it according to the size of the air tank to fill it. Then check the capacity of your air. The more gallons it can have, the more you can use the compressor without refilling it. It is recommended to buy a compressor according to your work location.
You have to also check about its power rating and what voltage does it requires to work. Apart from these points you should check about the maintenance cost, warranties and accessories related to the compressor, that you are willing to buy.
So, according to your need, you have to decide which one will be the most effective of the lot. All you need to do is check on these basic fundamentals and the rest of the job is as cool as it gets.
Price and brand
You must also consider your budget and see that you go for the best brand and quality within that price. Also see which brand has got the best after sales service and the longest warranty.