Two-Stage VSD - DSP Oil Free Rotary Screw Air Compressors
Hitachi two-stage VSD DSP oil free rotary screw air compressors provide contaminant free compressed air for a variety of manufacturing facilities. Hitachi's rich experience and technological breakthroughs in the development of industrial-class air compressors has made the industrial two -stage VSD DSP oil free rotary screw air compressors ideal for all industrial applications.
Features and Benefits
Purity of Air Compression
- Patented HX-18 PTFE-Free coatings ensure purity of air.
- Stainless steel 1st and 2nd stage rotors to eliminate corrosion and promote adhesion of the coatings
- Patented Rotor Profile Design to optimize the clearances for increased performance.
- Tapered rotors to compensate for the thermal expansion in the air end.
Maximized Thermal Efficiency
- Patented Stainless Steel Hi-Precooler to assist in providing efficient cooling and thermal protection.
- Cooling air path of the Hi-Precooler to maximize thermal efficiency of the cooling system.
- Patented Oil Mist Remover (OMR) to eliminate environmental oil emissions from the gear case, ensuring purity of air compression.
- Minimal oil loss through recapturing of the vented oil mists.
No Inlet Valve Design
- The patented No Inlet Valve Design ensures that vacuum is not generated at the air end inlet and succeeds at obtaining stable sealing performance even at slow running speed.
- No rebuild or replacement parts are needed, which saves investment in consumable and maintenance items.
Hitachi Microprocessor Based Control
- Standard lead/lag functionality.
- Standard operational data recording.
- Standard schedule Start/Stop operation.
- Standard Instantaneous Power Interruption (IPI) Restart Function.
- Standard Power Save operation to save power by automatically decreasing the unload pressure and averaging the operating pressure.
- Standard Automatic Remote Air Dryer Pre-Start.
Major Component Protection
- To protect major components, the standard Motorized Isolation Valve (MIV) automatically closes the discharge when the DSP air compressor stops.
Industry Leading Sound Levels & Vibration
- Standard quiet enclosure.
- Low sound levels to allow placement in a variety of locations.
- Low vibration design to minimize leak paths.
- Hitachi manufactures the smallest oil free rotary screw air compressor package in overall dimension to allow easy placement in a variety of locations.
- Panel accessibility to promote space conservation.
- Hitachi manufactures most of the major components of the DSP air compressors:
Hitachi Airend, Hitachi EPAct Efficiency Motor, Hitachi Microprocessor Based Control and HITACHI Enclosure.
* Available for 125 psig air-cooled models.