Hitachi Sullair DSP 55 8.6 Bar 254CFM

The Hitachi Sullair DSP 55 oil-free rotary screw air compressor delivers 254 CFM at 8.6 bar (≈125 psi), pairing proven Hitachi motors with DSP engineering for dependable, clean compressed air.

Its two-stage air end features stainless steel rotors, a PTFE-free coating, and an internally coated rotor housing to maximize durability and efficiency.

A patented high pre-cooler design in air-cooled units pre‑conditions air before the aftercooler, reducing thermal fatigue, while a motorized isolation valve prevents downstream moisture when the unit is idle.

Oil Mist Remover captures 99.99% of mist and maintains negative pressure in the gearcase, saving oil and helping keep the work environment clean.

Control options include a fixed-speed spool-type design (pneumatically controlled, up to 1 million cycles) and a Variable Speed Drive (VSD) that eliminates inlet losses and can cut no-load power by up to 30%.

Powered by Hitachi IE3 TEFC IP55 motors (22–240 kW), with VSD fan motors on select models, built-in inverters, and standard phase monitor, the DSP series carries a 3-year package warranty when serviced with genuine DSP parts.