Hitachi DSP Series – Oil Free Rotary Screw Compressors 30 to 300 hp (22-240 kW)
Hitachi Oil-Free Rotary Screw Compressors 22 – 240 kW
Why oil-free?
- In many operations, compressed air comes into contact with elements in the manufacturing process.
- When clean air is essential, oil-free air is essential.
Oil particles in compressed air can contaminate downstream processes as well as production. - Oil-free compressors help eliminate potential contamination, as no oil or lubricant is used in the air compression process. Reducing the risk of contamination helps improve your company’s operations and profitability.
Description

KEY FEATURES OF THE DSP SERIES
The DSP Series brings advanced oil-free operations right where it's needed: your plant! Built on Hitachi engineering, the DSP series is designed to deliver oil-free air reliably, efficiently and quietly, today and in the future. Key features: Optimized rotor design, material and coating for increased efficiency Stainless steel rotors in the first and second stages Patented PTFE-free rotor coating Internally coated rotor housing Benefits: Every aspect of the airend has been carefully engineered to provide long service life, as well as increased efficiency. Stainless steel rotors, patented rotor coating and coated housing provide long airend life.
Applications
DSP series rotary screw air compressors are the perfect choice for applications that demand totally oil-free air, including the following:
Pharmaceutical
Food and beverage manufacturing
Electronics
High-tech manufacturing
Textile industry
Robotics
Automotive
Painting.
The origin of the DSP series began at Hitachi, with thousands of successful installations of oil-free rotary screw compressors worldwide and today.
Advantages
Designed to provide the ultimate in reliability, the DSP series includes the following key features:
104°F (40°C) ambient temperature rating.
Noise reduction package including:
Complete default enclosure
Mechanical and electrical vibration isolation
VSD fan
VSD packages under 100 hp (75 kW) include DCBL motors
Simple maintenance and service features including:
External grease fittings on 50 hp (37 kW) and larger motors
Easy access to air and oil filter elements

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