What is a 2 Stage Air Compressor


The main difference between single and two stage compressors is the number of times the air gets compressed between the inlet valve and the tool nozzle. In a single stage compressor, the air is compressed once; in a two stage compressor, the air is compressed twice for double the pressure. By increasing the number of cylinder stages and pressure, these machines work more effectively with a faster recovery time, and can handle more tools at once.

How does a 2 stage air compressor work?
Multi-stage, or two stage, compressors feature a series of cylinders, each a different diameter. Between each compression stage, the air passes through a heat exchanger, where its cooled. Cooling the air reduces the amount of work necessary to compress it further. In a two-stage compressor, air is then forced into an additional chamber where its pressurized.

Benefits of the ELGi 2 Stage air compressor

  • Assembled in the USA in Charlotte, NC
  • Heavy cast iron crank shaft
  • Designed for efficiency, durability, and reliability
  • Easy to drain the tank
  • Magnetic starter ensures smooth start and stop of the motor
  • ASME coded air receiver tanks that are safe, reliable and maintenance friendly

When to use a 2 stage air compressor
There are benefits to selecting a two stage air compressor, however, they’re not necessarily the right choice for every application. Generally speaking, single-stage compressors are best for light-duty, intermittent use applications, in which pressure requirements don’t exceed 100 PSIG. Two-stage compressors offer better value and reliability for continuous use applications, such as auto repair and manufacturing.

For more information on this and other single and multi-stage air compressors, contact us. We have technicians in Grand Rapids, Lansing, greater Detroit, and throughout the state of Michigan.