Two stage Air Compressors are meant for medium pressure requirement up to 175 PSIG (12.30 kg/cm2g)
People who are new to air compressors will often confuse the number of cylinders for the number of stages in an air compressor, when in fact both single and two stage compressors use two cylinders, because it’s easier to balance air that way. The difference between the two stage air compressors vs. single stage in this regard is that, in the latter, both cylinders are the same size. On the other hand, in two stage compressors, the second piston is shorter than the first, and the two are linked by a cooling tube, which brings the temperature of the air down before the second round of compression. in a two stage compressor, the air is compressed twice for double the pressure.
The process that takes place within a two stage compressor goes as follows:
- Air is sucked into a cylinder
- It’s sent to a smaller piston for a second stroke at roughly 175 psi
- The double–pressurized air is cooled and delivered to a storage tank
In the storage tank, the compressed air serves as energy for the assortment of tools.