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Sullair 425 AF Tier 3 Portable Air Compressor

Sullair 425 AF 100psi
Tier 3 Rotary Screw Air Compressor


The Sullair 425 AF System delivers 425 cfm at 100 psig or 12.0 m3/min at 7 bar of aftercooled and filtered compressed air that meets or exceeds ISO 8573-1: Class 1.7.1 quality standards.

The AF System consists of a specially designed Sullair portable compressor with a built-in high-capacity, low-approach aftercooler, a water-condensate trap and a highly efficient contaminant removal system.

The contaminant removal system includes primary and secondary filters with condensate traps. The primary filter is a coalescing type filter which captures and removes particles down to 1.0 micron and larger in diameter, and maximum remaining aerosol content at 0.5 PPM. The secondary filter is a high efficiency coalescing type which removes particulate to 0.01 micron and larger in diameter, and maximum aerosol content of 0.01 PPM.


  • 425 cfm (12.0 m3/min, 201 l/s)
  • 100 psig (7 bar)
  • Available mounting options: 2-wheel or less running gear
  • Available engines: Tier 3 John Deere 140 hp (104 kW) or Tier 3 Caterpillar 130 hp (97 kW)

  • Rotary Screw Compressor
  • Instrument Quality Air as per ISO 8573.1:Class 1.7.1
  • Low-approach Aftercooler and Moisture Separator
  • Primary and Secondary Filtration
  • Environmentally Friendly
  • 0 to 100% Capacity Control
  • Two-stage Air Filters
  • Curbside Instrument Panel
  • Rocker Type Start Switch
  • Idle Warm-up Valve
  • SSAM—Shutdown System and Annunciation Module
  • Protective Shutdown Switches
  • AWF™ Compressor Fluid
  • Bumper with Recessed Tail Lights

  • Differential Pressure Shutdown System for Filters

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