Oil-sealed rotary vane vacuum pumps are classical products in the mechanical pump sector. Since their invention in the early 20th century, they have served as representative vacuum acquisition devices widely used across various industries. These pumps employ oil-sealing technology, utilizing vacuum pump oil to ensure smooth rotation of components while enhancing vacuum sealing performance, thereby achieving exceptional exhaust capabilities.
The core operating principle involves an eccentric rotor and multiple radial sliding vanes. As the rotor turns, centrifugal force pushes the vanes against the pump chamber wall, dividing the chamber into several variable-volume compartments. This creates a cyclic process of gas intake, compression, and discharge.
Our oil-sealed rotary vane vacuum pumps are the industry standard for robust, efficient, and dependable vacuum generation. Engineered for a wide range of industrial, laboratory, and processing applications, these pumps deliver consistent medium to high vacuum levels with smooth, continuous operation.
| Model | Power (kw) | Max Air flow(m3/h) | Max Vacuum (mbar) | Oil filling amount (L) | ||||
| 50Hz | 60Hz | 50Hz | 60Hz | RA | RB | RC | ||
| W1.020 | 0.75 | 0.9 | 20 | 24 | 0.5 | 2 | 20 | 1 |
| W1.025 | 0.9 | 1.1 | 25 | 30 | 0.5 | 2 | 20 | 1 |
| W1.040 | 1.5 | 1.8 | 40 | 48 | 0.5 | 2 | 20 | 1 |
| W1.063 | 1.5 | 1.8 | 60 | 72 | 0.5 | 2 | 20 | 2 |
| W1.063 | 2.2 | 2.6 | 63 | 76 | 0.5 | 2 | 20 | 2 |
| W1.100 | 3 | 3.6 | 100 | 120 | 0.5 | 2 | 20 | 2 |
| W1.140 | 4 | 4.8 | 140 | 168 | 0.5 | 2 | 20 | 2 |
| W1.202 | 5.5 | 6.6 | 200 | 240 | 0.5 | 2 | 20 | 5 |
| W1.302 | 7.5 | 9 | 300 | 360 | 0.5 | 2 | 20 | 7 |
High Efficiency & Stability: Operates effectively from atmospheric pressure to high vacuum, delivering reliable pumping performance
Oil-Sealing Technology: Vacuum oil not only lubricates and cools moving parts but also seals chamber clearances, reducing harmful space and significantly improving ultimate vacuum performance
Compact Design: Space-saving construction with easy installation, capable of achieving vacuum levels below 10 Pa
Quiet Operation: Low-speed rotation design ensures minimal noise during operation
Easy Maintenance: Simple structure facilitates straightforward maintenance procedures
Oil-sealed rotary vane vacuum pumps serve multiple industrial sectors:
Vacuum Packaging: Food industry packaging and textile industry compression packaging
Vacuum Processing: Vacuum drying, distillation, concentration, impregnation, adsorption, transfer, and molding
Industrial Processes: Plastic thermoforming, vacuum fixtures, freeze drying
Laboratory Applications: Analytical instruments, laboratory bench vacuum, backing pumps for turbomolecular pumps
Specialized Applications: Optical coating deposition systems, inline sputtering equipment, leak detection devices
Oil-sealed rotary vane vacuum pumps offer reliability, cost-effectiveness, and operational simplicity, making them ideal vacuum solutions for numerous industrial and laboratory applications—from basic vacuum adsorption to complex industrial processes.








