reciprocating compressor or piston compressor is a positive-displacement compressor that uses pistons driven by a crankshaft to deliver gases at high pressure

Piston compressors are available in a variety of configurations, including single-acting, double-acting, oil-lubricated or oil-free. One of the most common configurations is the double-acting design, which features an L-configuration with one vertical, low-pressure cylinder and one horizontal, high-pressure cylinder. Oil-lubricated designs use splash lubrication or pressure lubrication and oil-free designs feature piston rings or toothed walls.

Most piston compressors have self-acting valves that open and close based on pressure differences on both sides of the valve disk. Some larger machines are equipped with a crosshead, seals and a ventilated intermediate piece to prevent oil from being transferred into the compression chamber.

Piston Air Compressor Pros:

  • Inexpensive
  • Simple maintenance
  • Capable of high pressures
  • Air Tank

Piston Air Compressor Cons:

  • Noisy
  • Interrupted flow rates
  • 20 to 30% duty cycle
  • Low life expectancy
  • Maintenance costs
  • Excessive heat