Advanced Screw Compressor Systems for Industrial Use
The oil-injected screw air compressors from a trusted screw air compressor supplier are engineered to meet the demands of facility managers and engineers requiring consistent, high-quality compressed air. These industrial screw air compressors incorporate durable forged steel rotors and heavy-duty bearings to ensure extended operational lifespan. Targeted toward manufacturing plants, workshops, and automated production lines, these compressors provide stable pressure output with variable frequency drive capability, making them highly adaptable across diverse industrial environments.
Precision Engineering Delivering Measurable Efficiency Gains
Equipped with permanent magnet variable frequency motors, these screw air compressors offer enhanced energy efficiency and support unlimited start-stop cycles without premature wear. The oil-injected design optimizes cooling and lubrication, contributing to cleaner output air and reduced risk of component failure. Pressure ranges from 7 to 13 barg combined with power options spanning 4 kW to 110 kW cater to various capacity requirements. Advanced control systems using Siemens electrical components ensure system stability and user-friendly operation, meeting rigorous reliability standards expected from an industrial air compressor supplier.
Versatile Applications Ensuring Operational Excellence
These industrial rotary screw air compressors are suitable for critical industrial scenarios including manufacturing lines requiring stable air pressure, environments where noise abatement is essential, and operations demanding minimal downtime due to maintenance-friendly features. By integrating seamlessly with existing air networks, they enhance throughput and system efficiency. Their robust design supports long service intervals, making them attractive solutions for sectors aiming to maximize return on investment through dependable equipment performance.
Product Advantages
Structural and System Design for Long-Term Reliability
The engineering behind this screw air compressor reflects advanced design principles emphasizing durability and modular integration. The forged steel rotors provide exceptional resistance to wear, while heavy-duty cylindrical and tapered roller bearings with coolant oil pathways enhance operational longevity. Integration of a variable frequency permanent magnet motor allows precise control of air delivery and energy consumption. As a result, these compressors represent a synthesis of mechanical robustness and electronic control sophistication expected from leading screw air compressor manufacturers.
Performance and Operational Benefits for End Users
From a user perspective, the industrial air compressor supplier’s oil-injected screw air compressors incorporate a bilingual LED controller that simplifies interface navigation and system monitoring. Quiet operation achieved through optimized magnetic field design and sound insulation supports compliance with workplace noise regulations. The variable frequency drive not only improves energy efficiency but also permits unlimited start-stop cycles, reducing mechanical stress. This combination of features delivers a low total cost of ownership without compromising compressor performance or user convenience.
Introduction to Features of V-Series Oil-Injected Screw Air Compressors
The V-series screw air compressor is the latest product line launched by VUOTOTECH. It integrates the most advanced technologies and craftsmanship of VUOTOTECH screw rotors, as well as the company’s in-depth understanding of the Chinese market and customer needs accumulated over the years. Equipped with multiple practical technologies, the oil-injected design delivers cleaner air, the mute design ensures an excellent operating experience, and humanized design enables more convenient and efficient services. It provides you with an efficient, safe, stable and comfortable compressed air system.
Main Unit
The main unit is the core component of a screw air compressor. It is designed for reliable quality, stable performance and high operating efficiency, which not only minimizes manufacturing tolerances but also enables precise assembly of the main unit. Meanwhile, other key components of the air compressor provide crucial support and control for the reliable operation of the main unit.
A. Rotor Design
The main unit adopted by the V-series is equipped with rotors made of American-standard forged steel. For large-sized main units, rotor profiles are processed through two special procedures. The first step is rough machining to complete the processing of the envelope angle of the rotor profile. The second step is grinding to form a solid surface. The rotating shaft is processed with high precision to control the tolerance within 0.0005 feet. The sealing strips of the main unit are completed during the secondary processing of the female rotor, which reduces air leakage by sealing the compression chamber. After rotor machining, each rotor undergoes integrity testing on a coordinate measuring machine. Every pair of rotors is matched with a dedicated rotor housing made of dense cast iron. The dimensions of each rotor housing are strictly inspected to ensure high precision.
B. Bearing Design
The V-series adopts a durable heavy-duty bearing design for the main unit, with a designed service life of over 100,000 hours. High-quality cylindrical roller bearings are installed at the air inlet end of the rotors to bear radial loads.
Both axial thrust bearings and radial bearings are high-precision compressed air exhaust bearings, featuring harder and more accurate raceway rolling surfaces.
The exhaust end adopts a back-to-back tapered roller bearing structure. Tapered roller bearings are mainly composed of rollers and raceways, bearing thrust loads through line contact and capable of withstanding various radial and axial thrust loads. Thanks to this structural design, a pair of tapered roller thrust bearings are mounted on the offset main shafts at the exhaust ends of both female and male rotors, to maximally absorb axial thrust and radial loads.
Each bearing is designed with a coolant oil groove. When the compressor shuts down, the oil groove stores coolant. Upon restarting, the bearings can be fully lubricated, effectively extending the service life of bearings and the main unit.
Permanent Magnet Variable Frequency Motor
VUOTOTECH permanent magnet variable frequency air compressors are driven by permanent magnet synchronous motors. Compared with traditional electrically excited motors, permanent magnet motors, especially rare-earth permanent magnet motors, boast outstanding advantages: simple structure, reliable operation, small size, light weight, low energy loss and high efficiency, with flexible motor shapes and dimensions. They are widely applied in aerospace, national defense, industrial and agricultural production, daily life and many other fields.
Compared with ordinary power frequency motor-driven air compressors, permanent magnet synchronous motor-driven variable frequency air compressors have the following core advantages:
The hybrid permanent magnet motor features a detachable stator winding that can be replaced on-site. It achieves high power in a compact size — its volume is only 33% of a traditional variable frequency motor, while its magnetic flux is three times higher. It can be directly connected to and drive the male rotor of the main unit. Its unique structural layout eliminates wearing parts and motor bearings.
The hybrid permanent magnet motor supports unlimited start-stop operations to meet fluctuating air demand without causing damage to the motor. The unit will automatically shut down when air consumption drops to the minimum, avoiding energy waste caused by idling and unloading of traditional air compressors.
The enlarged motor air gap allows the HPM motor to operate stably at an ambient temperature of 46°C (115°F), effectively preventing unexpected shutdowns.
Optimized slot-pole matching and magnetic field design expand the operating frequency range and reduce operating noise.
The permanent magnet rotor features small size and high power density.
The starting torque and overload capacity of permanent magnet synchronous motors are one power level higher than three-phase asynchronous motors. The ratio of maximum starting torque to rated torque reaches more than 3 times, while that of ordinary asynchronous motors is only 1.6 times.
Air Compressor Control System
Electrical Components
The V-series is equipped with Siemens brand electrical components. The electric control box is installed on the air inlet side of the air compressor where the ambient temperature is lower, which prevents heat-sensitive electrical components from aging, extends service life and ensures stable and efficient operation.
The V-series is fitted with a specially designed intelligent controller with humanized operation interface:
| Model | Pressure | Rated Power | Displacement | Noise | Exhaust Port | Size (LxWxH) | Weight |
| barg | kW | m³/min | dB | BSPT | mm | kg | |
| V4-7 | 7 | 4 | 0.58 | 65 | 0.75‘’ | 795*630*990 | 210 |
| V4-8 | 8 | 0.55 | |||||
| V4-10 | 10 | 0.5 | |||||
| V4-13 | 13 | 0.48 | |||||
| V5-7 | 7 | 5.5 | 0.85 | 65 | 0.75‘’ | 225 | |
| V5-8 | 8 | 0.83 | |||||
| V5-10 | 10 | 0.78 | |||||
| V5-13 | 13 | 0.7 | |||||
| V7-7 | 7 | 7.5 | 1.15 | 65 | 0.75‘’ | 238 | |
| V7-8 | 8 | 1.12 | |||||
| V7-10 | 10 | 1.03 | |||||
| V7-13 | 13 | 0.95 | |||||
| V11-7 | 7 | 11 | 1.65 | 65 | 0.75‘’ | 260 | |
| V11-8 | 8 | 1.63 | |||||
| V11-10 | 10 | 1.52 | |||||
| V11-13 | 13 | 1.35 | |||||
| V15-7 | 7 | 15 | 2.58 | 66 | 1‘’ | 985*880*1250 | 380 |
| V15-8 | 8 | 2.5 | |||||
| V15-10 | 10 | 2.4 | |||||
| V15-13 | 13 | 2.1 | |||||
| V18-7 | 7 | 18.5 | 3.2 | 66 | 1‘’ | 490 | |
| V18-8 | 8 | 3.1 | |||||
| V18-10 | 10 | 3 | |||||
| V18-13 | 13 | 2.8 | |||||
| V22-7 | 7 | 22 | 3.8 | 66 | 1‘’ | 510 | |
| V22-8 | 8 | 3.7 | |||||
| V22-10 | 10 | 3.5 | |||||
| V22-13 | 13 | 3.3 | |||||
| V30-7 | 7 | 30 | 5.7 | 68 | 1.5'' | 1230*1250*1550 | 850 |
| V30-8 | 8 | 5.5 | |||||
| V30-10 | 10 | 5.2 | |||||
| V30-13 | 13 | 5 | |||||
| V37-7 | 7 | 37 | 6.5 | 68 | 1.5'' | 890 | |
| V37-8 | 8 | 6.3 | |||||
| V37-10 | 10 | 6 | |||||
| V37-13 | 13 | 5.8 | |||||
| V45-7 | 7 | 45 | 8.2 | 69 | 1.5'' | 930 | |
| V45-8 | 8 | 8 | |||||
| V45-10 | 10 | 7.6 | |||||
| V45-13 | 13 | 7.3 | |||||
| V55-7 | 7 | 55 | 11.8 | 69 | 1.5'' | 1900*1250*1550 | 1650 |
| V55-8 | 8 | 10.5 | |||||
| V55-10 | 10 | 9.7 | |||||
| V55-13 | 13 | 8.3 | |||||
| V75-7 | 7 | 75 | 14.5 | 69 | 2'' | 2100*1250*1550 | 1980 |
| V75-8 | 8 | 13.5 | |||||
| V75-10 | 10 | 12 | |||||
| V75-13 | 13 | 10.8 | |||||
| V90-7 | 7 | 90 | 18.2 | 72 | 2'' | 2200 | |
| V90-8 | 8 | 17.5 | |||||
| V90-10 | 10 | 15 | |||||
| V90-13 | 13 | 13.8 | |||||
| V110-7 | 7 | 110 | 22 | 72 | 2.5'' | 2800*1500*1900 | 2560 |
| V110-8 | 8 | 21.2 | |||||
| V110-10 | 10 | 20.1 | |||||
| V110-13 | 13 | 19.5 |
Use Scenarios
Manufacturing Facilities Requiring Consistent Compressed Air Supply
In high-demand manufacturing environments, maintaining steady air pressure is critical for process stability. These industrial screw air compressors serve as primary air sources, delivering consistent flow rates with minimal pressure fluctuation. Their oil-injected screw design ensures reliable cooling and lubrication for robust performance during extended use. Integration with automated production lines benefits from the motor’s variable frequency capabilities, facilitating dynamic air demand adjustments while optimizing energy consumption in compliance with industrial efficiency standards.
Noise-Sensitive Workshop and Facility Environments
Workshops and light industrial facilities often require compressed air with minimal noise output to meet occupational health and safety criteria. The rotary screw air compressor’s quiet operation within a noise range of 65 to 72 dB, combined with compact, vibration-dampened enclosures, addresses these requirements effectively. By ensuring smooth and stable air delivery through a controlled oil-injected mechanism, the equipment supports enhanced worker comfort and meets regulatory noise suppression standards while seamlessly fitting into existing compressed air distribution systems.
What materials are used in the construction of your oil-injected screw air compressors?
We manufacture our compressors using high-precision forged steel rotors built to American standards, combined with heavy-duty bearings featuring coolant oil grooves. These components ensure long-lasting durability and stable performance in our screw air compressor range.
Do you offer customization options for different industrial air compressor requirements?
Yes, our product line covers power ranges from 4 kW to 110 kW and pressure outputs from 7 to 13 barg to suit varied industrial needs. We work closely with clients to recommend the optimal industrial air compressor supplier solution tailored to your facility’s specifications.
What support do you provide for installation and maintenance of rotary screw air compressors?
We provide detailed guidance and a humanized user interface for easy operation and maintenance. Our compressors incorporate Siemens electrical components to ensure reliability, and our technical team supports regular maintenance like oil changes and bearing inspections.
How does your compressor ensure energy efficiency and quiet operation in industrial settings?
Our compressors use a permanent magnet variable frequency motor that reduces energy consumption and noise levels down to 65–72 dB. These features make our rotary screw air compressor models ideal for factories needing efficient and quiet air supply.
