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
Ionized Air Cannon – Ion Air Cannon Exair Gen 4
The Ion Air Cannon Exair Gen 4 delivers a powerful concentrated ionized air flow to eliminate static electricity and dust from surfaces, parts, and materials in industrial processes — quietly and efficiently.
- ✓No moving parts — completely maintenance-free operation with high instantaneous ionized air flow.
- ✓Adjustable flow and force using slats for precise static elimination control.
- ✓Base for easy mounting and placement in any industrial environment.
- ✓Quiet and efficient Ion Air Cannon Exair Gen 4 — reliable Gen 4 static elimination technology.
Ionized Air Cannon – Ion Air Cannon Exair Gen 4
The Ion Air Cannon Exair Gen 4 delivers a powerful concentrated ionized air flow to eliminate static electricity and dust from surfaces, parts, and materials in industrial processes — quietly and efficiently.
- ✓No moving parts — completely maintenance-free operation with high instantaneous ionized air flow.
- ✓Adjustable flow and force using slats for precise static elimination control.
- ✓Base for easy mounting and placement in any industrial environment.
- ✓Quiet and efficient Ion Air Cannon Exair Gen 4 — reliable Gen 4 static elimination technology.
EXAIR Digital Noise Level Meter – 5 Ways to Reduce Industrial Noise & Comply with NOM-011-STPS-2001
Long-term exposure to high sound levels can lead to hearing loss, operator fatigue, reduced productivity, and safety risks. Implementing reliable EXAIR noise level detection systems allows companies to monitor workplace noise conditions and take corrective actions before noise exposure becomes dangerous.
The unit provides accurate noise level measurement capabilities through a simple and easy-to-use handheld design. It measures sound levels between 35 dB and 130 dB and includes both A and C weighted measurement scales for evaluating different industrial sound conditions. These measurement options help maintenance personnel and safety managers analyze noise levels accurately across multiple applications. One of the key advantages of this sound level meter for industrial use is its ability to operate in dynamic industrial environments.
The instrument includes fast and slow response time settings that allow users to measure both stable and rapidly changing sound conditions. The fast response setting captures sudden noise variations, while the slow response setting provides stable readings for continuous monitoring applications. The integrated Max Hold function continuously records and updates the highest detected sound level during operation. This feature is especially useful for identifying the loudest areas in industrial facilities and evaluating noise generated by compressed air equipment, machinery, and manufacturing processes.
Digital noise monitoring EXAIR technology is commonly used in manufacturing plants, automotive facilities, packaging operations, food processing plants, and metalworking industries. Companies implementing these systems can reduce workplace risks, improve employee safety, support hearing conservation programs, and create safer industrial environments. For more information visit EXAIR Official Website and OSHA.
The EXAIR Digital Noise Level Meter is a professional sound monitoring device designed for accurate industrial noise measurement and workplace safety compliance using advanced EXAIR noise level detection systems.
- ✓Digitally measure noise levels from 35 dB to 130 dB in industrial work environments.
- ✓Includes portable carrying case and 9V battery for immediate use.
- ✓Fast and slow response modes plus Max Hold function for dynamic environments.
- ✓Helps comply with NOM-011-STPS-2001 workplace noise regulations.
- ✓Reliable EXAIR noise level detection systems for industrial safety programs.
EXAIR Digital Noise Level Meter – 5 Ways to Reduce Industrial Noise & Comply with NOM-011-STPS-2001
Long-term exposure to high sound levels can lead to hearing loss, operator fatigue, reduced productivity, and safety risks. Implementing reliable EXAIR noise level detection systems allows companies to monitor workplace noise conditions and take corrective actions before noise exposure becomes dangerous.
The unit provides accurate noise level measurement capabilities through a simple and easy-to-use handheld design. It measures sound levels between 35 dB and 130 dB and includes both A and C weighted measurement scales for evaluating different industrial sound conditions. These measurement options help maintenance personnel and safety managers analyze noise levels accurately across multiple applications. One of the key advantages of this sound level meter for industrial use is its ability to operate in dynamic industrial environments.
The instrument includes fast and slow response time settings that allow users to measure both stable and rapidly changing sound conditions. The fast response setting captures sudden noise variations, while the slow response setting provides stable readings for continuous monitoring applications. The integrated Max Hold function continuously records and updates the highest detected sound level during operation. This feature is especially useful for identifying the loudest areas in industrial facilities and evaluating noise generated by compressed air equipment, machinery, and manufacturing processes.
Digital noise monitoring EXAIR technology is commonly used in manufacturing plants, automotive facilities, packaging operations, food processing plants, and metalworking industries. Companies implementing these systems can reduce workplace risks, improve employee safety, support hearing conservation programs, and create safer industrial environments. For more information visit EXAIR Official Website and OSHA.
The EXAIR Digital Noise Level Meter is a professional sound monitoring device designed for accurate industrial noise measurement and workplace safety compliance using advanced EXAIR noise level detection systems.
- ✓Digitally measure noise levels from 35 dB to 130 dB in industrial work environments.
- ✓Includes portable carrying case and 9V battery for immediate use.
- ✓Fast and slow response modes plus Max Hold function for dynamic environments.
- ✓Helps comply with NOM-011-STPS-2001 workplace noise regulations.
- ✓Reliable EXAIR noise level detection systems for industrial safety programs.
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.
Heavy Duty Dry Vac – Exair Heavy Duty Pneumatic Vacuum Cleaner for Dust and Powders
Easily vacuum granular material!
- Move more material in less time.
- Reinforced structure has greater wear resistance.
- No moving parts: no maintenance.
Heavy Duty Dry Vac – Exair Heavy Duty Pneumatic Vacuum Cleaner for Dust and Powders
Easily vacuum granular material!
- Move more material in less time.
- Reinforced structure has greater wear resistance.
- No moving parts: no maintenance.
Pneumatic Vacuum Cleaner for CNC – Chip Trapper Exair
Extend the life of cutting oils and coolants in machining operations.
- Easily and quickly filter CNC machine storage tanks!
- Prevent production downtime due to dirty coolant or clogged pipes!
- Available in 5, 30, 55 and 110 Gallon sizes!
- Separate different materials to maximize recycling potential!
Pneumatic Vacuum Cleaner for CNC – Chip Trapper Exair
Extend the life of cutting oils and coolants in machining operations.
- Easily and quickly filter CNC machine storage tanks!
- Prevent production downtime due to dirty coolant or clogged pipes!
- Available in 5, 30, 55 and 110 Gallon sizes!
- Separate different materials to maximize recycling potential!
Exair Digital Static Meter
Locate the source of the static problem!
- The Model 7905 Digital Static Meter allows for easy one-handed static measurements.
- In most cases, the highest voltage reading will indicate the source of the static problem.
- Sensitive and responsive, it indicates surface tension and polarity on objects up to ±20 kV when measured one inch (25 mm) away.
Exair Digital Static Meter
Locate the source of the static problem!
- The Model 7905 Digital Static Meter allows for easy one-handed static measurements.
- In most cases, the highest voltage reading will indicate the source of the static problem.
- Sensitive and responsive, it indicates surface tension and polarity on objects up to ±20 kV when measured one inch (25 mm) away.
Super Air Knife EXAIR – 5 Proven Ways to Improve Industrial Blowoff & Reduce Compressed Air Waste
The EXAIR Super Air Knife is a high-performance compressed air curtain system designed to deliver uniform laminar airflow for industrial blowing, cleaning, drying, cooling, and conveying applications.
- ✓Uniform laminar airflow across the full knife length with a 40:1 air amplification ratio.
- ✓Surprisingly quiet — only 69 dBA noise level with very low compressed air consumption.
- ✓Available in aluminum, stainless steel, and PVDF — lengths from 3 to 108 inches.
- ✓CE compliant and OSHA approved for industrial blowing, cleaning, drying, and cooling applications.
- ✓Reliable EXAIR Super Air Knife systems for compressed air optimization and energy savings.
Super Air Knife EXAIR – 5 Proven Ways to Improve Industrial Blowoff & Reduce Compressed Air Waste
The EXAIR Super Air Knife is a high-performance compressed air curtain system designed to deliver uniform laminar airflow for industrial blowing, cleaning, drying, cooling, and conveying applications.
- ✓Uniform laminar airflow across the full knife length with a 40:1 air amplification ratio.
- ✓Surprisingly quiet — only 69 dBA noise level with very low compressed air consumption.
- ✓Available in aluminum, stainless steel, and PVDF — lengths from 3 to 108 inches.
- ✓CE compliant and OSHA approved for industrial blowing, cleaning, drying, and cooling applications.
- ✓Reliable EXAIR Super Air Knife systems for compressed air optimization and energy savings.
Ionized Circular Air Curtain – Super Ion Air Wipe Exair Gen 4
The Super Ion Air Wipe EXAIR Gen 4 delivers a powerful 360° ionized circular air curtain with laminar airflow to eliminate static electricity on cables, hoses, pipes, and extrusion products — with no moving parts.
- ✓Instant 360° high laminar ionized airflow with 40:1 air amplification ratio.
- ✓No moving parts — completely maintenance-free operation.
- ✓Easy assembly and installation for cables, hoses, pipes, and extrusion products.
- ✓Reliable Super Ion Air Wipe EXAIR Gen 4 for industrial static elimination applications.
Ionized Circular Air Curtain – Super Ion Air Wipe Exair Gen 4
The Super Ion Air Wipe EXAIR Gen 4 delivers a powerful 360° ionized circular air curtain with laminar airflow to eliminate static electricity on cables, hoses, pipes, and extrusion products — with no moving parts.
- ✓Instant 360° high laminar ionized airflow with 40:1 air amplification ratio.
- ✓No moving parts — completely maintenance-free operation.
- ✓Easy assembly and installation for cables, hoses, pipes, and extrusion products.
- ✓Reliable Super Ion Air Wipe EXAIR Gen 4 for industrial static elimination applications.






















