8 de abril de 2020
There's so much information about air compressors out there. Trying to wrap your mind around all the types of air compressors can be confusing. Even more so, if you have to decide between them to figure out which on is best for your application. This handy article will walk you through the types of compressors and explain their main benefits.
There are mainly two generic principles for the compression of air or gas: positive displacement compression and dynamic compression.
Positive displacement compressors include the following:
Dynamic compressors, also called centrifugal compressors work at a constant pressure instead of flow. Here are the principles behind each of these technologies.
Displacement compressors can sometimes be referred to as Constant Flow Compressors, as the compressor will produce the same flow at a given motor RPM, no matter the outlet pressure.
Atlas Copco has an extensive range of products and can feasibly meet any compressed air requirement out there. So why don’t we start with air quality, the main categories of which are Oil-Flooded / Oil-Injected technology and Oil-Free compressor technology. Most air compressors on the market rely on oil in the compression chamber for lubrication, sealing and cooling, but, of course, this means that some of the oil will get mixed into the air and microscopic droplets of oil will carry through the machine and end up in the air network - and eventually in the process or product.
At the end of the day, there is a need in the market place for a mix of both technologies depending on the air requirement for the given application.
We hope that this brief overview offers some insights into air compression, a process which is often overlooked, but much depended on in manufacturing. Get help choosing your compressor.