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Hitachi America, Ltd.

Hitachi

Hitachi America, Ltd., Industrial Systems Division, Air Technology Group

DSP Oil Free Rotary Screw Air Compressors-Single Stage VSD

Features

Purity of Air Compression

Purity of Air Compression

  • Patented HX-18 PTFE-Free coatings ensure purity of air.
  • Stainless steel rotors eliminate corrosion and promote the adhesion of the coatings.

Innovative Design

  • Patented Rotor Profile Design optimizes the clearances for increased performance.
  • Tapered rotors are utilized to compensate for the thermal expansion in the airend.

High Efficiency

High Efficiency

  • Matched HITACHI inverter and EPAct Efficiency motor allow for low power consumption and stable pressure control.

Maximized Thermal Efficiency

Maximized Thermal Efficiency

  • Patented Stainless Steel Hi-Precooler assists in providing efficient cooling and thermal protection.
  • The cooling air path of the Hi-Precooler maximizes thermal efficiency of the cooling system.

Environmentally Friendly

Environmentally Friendly

  • Patented Oil Mist Remover (OMR) eliminates environmental oil emissions from the gear case, ensuring purity of air compression.
  • By recapturing the vented oil mists, oil loss is minimal.

Increased Flow = Maximized Power

  • Patented “PQ-Wide Mode” gives HITACHI the capability to adjust the speed of operation to provide greater output with lower pressure settings.

No Inlet Valve Design

No Inlet Valve Design

  • The patented no inlet valve design ensures that vacuum is not generated at the airend inlet and succeeds at obtaining stable sealing performance even at slow running speed.
  • No rebuild or replacement parts are needed; saves investment in consumable and maintenance items.

HITACHI Microprocessor Based Control

HITACHI Microprocessor Based Control

  • Lead/lag functionality is standard.
  • Operational data recording is standard.
  • Schedule Start/Stop operation is standard.
  • Instantaneous Power Interruption (IPI) Restart Function is standard.
  • PowerSave operation, which saves power by automatically decreasing the unload pressure and averaging the operating pressure is standard.
  • Automatic Remote Air Dryer Pre-Start is standard.

Major Component Protection

  • The standard Motorized Isolation Valve (MIV) automatically closes the discharge when the DSP air compressor stops, protecting major components.

Industry Leading Sound Levels & Vibration

  • Quiet enclosure is standard.
  • Low sound levels allow placement in a variety of locations
  • Low vibration design minimizes leak paths.

Space Saving

  • Hitachi manufactures the smallest oil free rotary screw air compressor package in overall dimension, allowing for easy placement in a variety of locations.
  • Hitachi manufactures the smallest oil free rotary screw air compressor package in overall dimension, allowing for easy placement in a variety of locations.
  • Panel accessibility promotes space conservation.

In-House Manufacturing

  • 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.

Contacts

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