Sullair DWQ660RH Portable Rotary Screw Air Compressor

The Sullair DWQ660RH is a dual-axle portable rotary screw air compressor engineered for high-demand industrial applications. It features a Sullair-designed two-stage oil-flooded screw air end delivering 660 CFM (18.5 m3/min) at a rated pressure of 250 PSIG (17.2 bar), with high-pressure variants operating up to 20 bar (290 PSI). The unit is powered by a Cummins QSB 6.7L diesel engine rated at 260 kW (354 HP) compliant with Tier 3 / Stage IIIA / Euro 3 emissions standards. The compressor package includes a 0-100% capacity control system, two-stage dry-type heavy-duty air filtration with safety element, and all-weather compressor fluid. The DWQ configuration denotes a dual-axle trailer with 215/75R16C tires, hydraulic brakes, and mechanical parking brake. The air end carries a 5-year or 10,000-hour warranty. Typical applications include construction, mining, water well drilling, and pipeline services.