Two Stage

The SP20-12 two-stage air end is ideally suited for the air, gas, mining, vapor recovery, and OEM compressor markets, covering capacities from 750-1800 acfm and can mount into your existing packages with minimum changes needed.

The discharge air pressure of the two-stage can vary from as low as 250 psig to as high as 600 psig. The first stage flanges are sealed with gaskets, while the second stage and gearbox flanges include O-ring seals. High-quality taper roller bearings and extra wide cylindrical roller bearings provide a long duty cycle life. A 4-inch inter-stage pipe is used to minimize pressure drops, creating a more efficient first to second stage air flow, thereby requiring less power to operate. Our exclusive balance piston design has 85% less oil flow around the balance pistons creating a higher balance pressure/force that ensures maximum thrust bearing life.

  • Integrated Oil Pump model allows for operating pressures below 250 psig.
  •  Auxiliary Thru Shaft model is available for demands of driving additional equipment.
Model Capacity (acfm)
Max Pressure (psi)
Weight (lbs)
Dim L x W x H (in)
SP20/12 675-1500 600 1285 47 x 36.5 x 39
  • Compressed Air
  • Gas
  • Mining
  • Vapor Recovery
  • OEM Replacements
  • Receiver Tank Assembly Kits
  • Reduced Capacity Butterfly Inlet Valve Kits
  • Butterfly Inlet Valve Kits
  • Discharge Check Valves
  • Oil Thermal Sensing Valves
  • SAE Engine Adapter Kits
  • C-Face Motor Adapter Kits
  • Oil Cooler Kits
  • After Cooler Kits
  • Air Control Valves Kits
  • Inlet Air Filter Kits
  • Lubricants