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Sullair 425h AF Interim Tier 4 Portable Air Compressor

Sullair 425h 150HP
AF Interim Tier 4 Rotary Screw Portable Air Compressor


The Sullair 425H AF iT4 delivers 425 cfm at 150 psig or 12.0 m3/min at 10 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)
  • 150 psig (10 bar)
  • Available mounting options: 2-wheel or less running gear
  • Available engines: interim Tier 4 John Deere 139 hp (103.7 kW) or interim Tier 4 Caterpillar 142 hp (105.9 kW)

  • Rotary screw compressor
  • Instrument quality air as per ISO 8573.1:Class 1.7.1
  • Low-approach aftercooler and moisture separator
  • Two-stage dry-type filters
  • Full fluid containment retention frame
  • Cold box design
  • Adjustable height hitch
  • E-Z lube axle
  • Curbside instrument panel
  • Gauges and LCD graphic display on the controller
  • Idle warm-up valve
  • Rocker type start switch
  • Emergency stop
  • Fuel/water separator
  • 0 to 100% capacity control
  • Automatic inlet valve
  • Integral glow plug starting aids
  • Durable powder coat finish
  • AWF™ compressor fluid

  • Aftercooler and filtration for instrument quality air
  • Fork lift pockets
  • Block heater
  • Hose reels (single and dual) and pneumatic hoses
  • Spark arrestor muffler
  • Mechanical parking brakes
  • Ball hitch
  • Air filter maintenance indicators

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