The two-stage oil-free
Screw Vacuum Pump is an advanced vacuum device that achieves efficient gas pumping and compression through the precise alignment of two screw rotors, which rotate in opposite directions without contact, creating periodic volume changes. Its core breakthrough lies in completely eliminating oil lubrication. Leveraging micron-level precision meshing between the screws and the self-lubricating properties of the material, it achieves an oil-free process. Combined with a two-stage gradient compression and intelligent temperature control, it combines high vacuum performance with excellent media adaptability.
Not only can this device achieve an ultimate vacuum exceeding 0.1 Pa, it also sets new standards in energy efficiency, stability, and environmental compatibility. Measured energy savings exceed 50%, noise and vibration are significantly reduced, and it can handle complex operating conditions including corrosive gases, condensable vapors, and trace dust.
It has become an irreplaceable core piece of equipment in the following key industries precisely because it addresses the typical pain points of traditional vacuum solutions:
Semiconductor manufacturing: Used in critical processes such as wafer coating, etching, and ion implantation. These processes are extremely sensitive to hydrocarbon contamination and often utilize corrosive gases. The dual-stage oil-free structure fundamentally eliminates oil vapor backflow, and the high corrosion resistance of the material ensures long-term stable operation, maintaining wafer processing yield and equipment uptime.
Pharmaceutical and Biotechnology: In processes such as freeze-drying, solvent purification, and aseptic filling, traditional oil pumps can pose a risk of drug contamination and impact process certification. This pump provides a completely clean vacuum environment, supporting GMP compliance, while efficiently handling condensable solvent vapors and preventing pump cavity clogging and cross-contamination.
Food Packaging and Processing: Suitable for vacuum packaging, degassing, and conditioning. The oil-free design eliminates grease contamination of food contents, and the high-speed pumping capacity matches the pace of automated production lines, improving efficiency while ensuring food safety.
New Energy Battery Manufacturing: When recovering corrosive solvents such as NMP, conventional vacuum pumps are prone to corrosion failure and solvent retention. This pump, with its all-stainless steel construction and anti-condensation design, provides reliable media handling and a longer service life, reducing battery manufacturing costs.
Chemical and Environmental Engineering: Suitable for fine chemical synthesis and waste gas recovery (VOCs). Aggregate, corrosive, or flammable and explosive gases are common in systems. This device provides an oil-free, explosion-proof, and safe environment. Gradient compression reduces temperature peaks, thereby reducing reaction risks and equipment failure rates.
Research and experimental institutions: Synchrotron radiation, electron microscopes, and high-precision analytical instruments require clean, low-vibration, and stable vacuum systems. This pump, with its oil-free operation, low noise levels, and stable ultimate vacuum performance, ensures an undisturbed experimental environment and ensures data accuracy.
The two-stage oil-free screw
Vacuum Pump not only redefines the standard for clean vacuum, but also, with its system reliability, media adaptability, and significant energy savings, has become a key enabler for improving efficiency and reducing total costs in high-end manufacturing, green technology, and critical process environments. Its widespread use represents an inevitable trend in the industry's transition to a high-efficiency, low-carbon, and refined operating model.
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