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

Videos
Downloads
Related Products
Air Nozzles – Super Air Exair Nozzle
The Super Air EXAIR Nozzle delivers high-efficiency compressed air blowing with significant air savings and reduced noise levels — available in multiple materials and sizes for any industrial application.
- ✓Great savings of compressed air — higher discharge flow with lower air consumption.
- ✓Noise levels reduced by tens of dB — OSHA compliant safe operation.
- ✓Available in different materials and sizes for all industrial applications.
- ✓Reliable Super Air EXAIR Nozzle for blowing, cleaning, drying, and cooling operations.
Air Nozzles – Super Air Exair Nozzle
The Super Air EXAIR Nozzle delivers high-efficiency compressed air blowing with significant air savings and reduced noise levels — available in multiple materials and sizes for any industrial application.
- ✓Great savings of compressed air — higher discharge flow with lower air consumption.
- ✓Noise levels reduced by tens of dB — OSHA compliant safe operation.
- ✓Available in different materials and sizes for all industrial applications.
- ✓Reliable Super Air EXAIR Nozzle for blowing, cleaning, drying, and cooling operations.
EXAIR Digital Air Flow Meter – 5 Ways to Monitor & Reduce Compressed Air Waste
The EXAIR Digital Air Flow Meter is an advanced digital compressed air monitoring solution designed to measure airflow, detect waste, and improve efficiency using reliable EXAIR air flow monitoring systems.
- ✓Real-time compressed air flow monitoring with accurate digital airflow measurement.
- ✓Easy installation without cutting, welding, or calibration required.
- ✓Permanent or temporary mounting options with LED display for precise airflow readings.
- ✓Compatible with iron, aluminum, and copper pipes — measures airflow in SCFM and m3/hr.
- ✓Detects compressed air waste and leaks using reliable EXAIR air flow monitoring systems.
EXAIR Digital Air Flow Meter – 5 Ways to Monitor & Reduce Compressed Air Waste
The EXAIR Digital Air Flow Meter is an advanced digital compressed air monitoring solution designed to measure airflow, detect waste, and improve efficiency using reliable EXAIR air flow monitoring systems.
- ✓Real-time compressed air flow monitoring with accurate digital airflow measurement.
- ✓Easy installation without cutting, welding, or calibration required.
- ✓Permanent or temporary mounting options with LED display for precise airflow readings.
- ✓Compatible with iron, aluminum, and copper pipes — measures airflow in SCFM and m3/hr.
- ✓Detects compressed air waste and leaks using reliable EXAIR air flow monitoring systems.
Exair Cabinet Coolers
Stop electronic control downtime caused by heat, dirt and humidity!
- Keep line control boards cool and pressurized!
- Can be easily installed on any electronic board!
- Maintain board integrity according to NEMA 12, 4 or 4X!
- Comply with American and European UL and CE standards!
Exair Cabinet Coolers
Stop electronic control downtime caused by heat, dirt and humidity!
- Keep line control boards cool and pressurized!
- Can be easily installed on any electronic board!
- Maintain board integrity according to NEMA 12, 4 or 4X!
- Comply with American and European UL and CE standards!
Ionized Air Jet – Ion Air Jet Exair Gen 4
Effective way to remove static manually!
- No moving parts, maintenance free!
- High instantaneous air flow!
- More air volume with less energy consumption!
- 5:1 air amplification ratio!” ”What is the Exair Ionized Air Jet?
Ionized Air Jet – Ion Air Jet Exair Gen 4
Effective way to remove static manually!
- No moving parts, maintenance free!
- High instantaneous air flow!
- More air volume with less energy consumption!
- 5:1 air amplification ratio!” ”What is the Exair Ionized Air Jet?
Ionized Air Curtain – Super Ion Air Knife Exair Gen 4
The Super Ion Air Knife EXAIR Gen 4 delivers a powerful ionized air curtain that eliminates static electricity across wide surfaces — preventing production stoppages and electric shocks with no moving parts.
- ✓No moving parts — completely maintenance-free with high instantaneous ionized air flow.
- ✓Uniform ionized air flow along the entire length for consistent static elimination.
- ✓40:1 air amplification ratio — maximum coverage with minimal compressed air consumption.
- ✓Reliable Super Ion Air Knife EXAIR Gen 4 — OSHA compliant and CE certified.
Ionized Air Curtain – Super Ion Air Knife Exair Gen 4
The Super Ion Air Knife EXAIR Gen 4 delivers a powerful ionized air curtain that eliminates static electricity across wide surfaces — preventing production stoppages and electric shocks with no moving parts.
- ✓No moving parts — completely maintenance-free with high instantaneous ionized air flow.
- ✓Uniform ionized air flow along the entire length for consistent static elimination.
- ✓40:1 air amplification ratio — maximum coverage with minimal compressed air consumption.
- ✓Reliable Super Ion Air Knife EXAIR Gen 4 — OSHA compliant and CE certified.
Antistatic Ion Generating Bar – Ionizing Bar Exair Gen 4
Compact and robust design for static elimination in industrial environments.
- Low cost option for static elimination!
- No compressed air required for operation!
- Charge dissipation power up to ±5 kV!
- Effective up to 5 cm distance from the target!
Antistatic Ion Generating Bar – Ionizing Bar Exair Gen 4
Compact and robust design for static elimination in industrial environments.
- Low cost option for static elimination!
- No compressed air required for operation!
- Charge dissipation power up to ±5 kV!
- Effective up to 5 cm distance from the target!
LineVac Exair
The LineVac EXAIR is a high-efficiency pneumatic conveyor designed to move parts, materials, scrap, and granular bulk materials through pipelines with no moving parts and minimal maintenance requirements.
- ✓Moves granular materials such as pellets, grains, scrap, and bulk materials through existing pipelines.
- ✓Easy installation — fits into existing pipelines with various materials and diameters available.
- ✓No moving parts — zero maintenance required for continuous reliable operation.
- ✓Reliable LineVac EXAIR pneumatic conveying solutions for industrial bulk material handling.
LineVac Exair
The LineVac EXAIR is a high-efficiency pneumatic conveyor designed to move parts, materials, scrap, and granular bulk materials through pipelines with no moving parts and minimal maintenance requirements.
- ✓Moves granular materials such as pellets, grains, scrap, and bulk materials through existing pipelines.
- ✓Easy installation — fits into existing pipelines with various materials and diameters available.
- ✓No moving parts — zero maintenance required for continuous reliable operation.
- ✓Reliable LineVac EXAIR pneumatic conveying solutions for industrial bulk material handling.
Intellistat Ion Air Nozzle
Powerful ionized air gun to eliminate static!
- No moving parts, maintenance free!
- High instantaneous ionized air flow!
- High charge decay rate (~5 kV / 0.5 s) !
- Ideal for manual, operator-dependent applications!
Intellistat Ion Air Nozzle
Powerful ionized air gun to eliminate static!
- No moving parts, maintenance free!
- High instantaneous ionized air flow!
- High charge decay rate (~5 kV / 0.5 s) !
- Ideal for manual, operator-dependent applications!























