- Special material adopted for excellent corrosion resistance.
- Two-Shift adjustable gas ballast valve satisfies different requirements of condensable vapor (such as water vapor) to be exhausted out of pump in different processes.
- Dual protection of oil anti-suck back ensures vacuum system from oil pollution when pump stops running and needs to be easily restarted.
- Forced oil circulation system consisted of oil pump and constant pressure oil supply mechanism ensures stable running of the pump.
- Less components are used, easy to maintain and repair.
Picture for reference:

Technical Parameters:
Model | CY-D8 | CY-D12 | CY-D30 | CY-S100 | CY-S300 | |
Displacement speed m3/h | 8 | 16 | 30 | 100 | 300 | |
Ultimate partial pressure gas ballast closed (Pa) | 5x10-3 | 4x10-3 | 4x10-3 | 0.1 | 8x10-2 | |
Ultimate total pressure gas ballast closed (Pa) | 3X10-2 | / | / | 5x10-1 | 5x10-1 | |
Ultimate total pressure gas ballast open (Pa) | / | 8x10-3 | 8x10-3 | 1.5 | 1.5 | |
Power supply | Single / Three Phase | Single / Three Phase | Single / Three Phase | Three Phase | Three Phase | |
Power rating (kW) | 0.4/0.37 | 0.75/0.55 | 1.1 | 2.2 | 5.5 | |
Intake and exhaust DN (mm) | KF25 | KF25 | KF25/40 | KF40 | KF40 | |
Oil capacity (L) | 0.6~1.0 | 0.9~1.5 | 1.3~2.0 | 3.3~4.5 | 3.3~4.5 | |
Motor speed (rpm) | 50Hz | 1440 | 1440 | 1440 | 1440 | 1440 |
60Hz | 1720 | 1720 | 1720 | 1720 | 1720 | |
Ambient temperature (°C) | 5 - 40 | 5 - 40 | 5 - 40 | 5 - 40 | 5 - 40 | |
Noise level (dB) | ≤56 | ≤58 | ≤58 | ≤62 | ≤71 | |
Net weight (kg) | 21 | 30 | 43 | 72 | 205 |
Contact Information:

This vacuum pump is designed for high-performance applications such as CVD experiments, dental furnace sintering, and other industrial processes where durability and reliability are essential. The model CY-802 offers a range of specifications tailored to meet various operational demands. Its corrosion-resistant construction ensures long-term use even in harsh environments. The two-shift adjustable gas ballast valve allows for optimal performance with condensable vapors, while the dual oil protection system prevents contamination and facilitates quick restarts. The forced oil circulation system ensures consistent and smooth operation. With fewer components, maintenance is simplified and cost-effective. This product is ideal for users who require a reliable and efficient vacuum solution in their processes.
Rubber machinery is used to extrude treads, inner tubes, hoses and various rubber strips, as well as to coat cables and wire products. The common one is the screw extruder.
After more than 20 years of continuous development, Zhejiang jinteng Machinery Manufacturing Co., Ltd. has become a famous production base and supporting center of screw and barrel for plastic machinery in China.
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Zhejiang Jinteng Machinery Manufacture Co., Ltd. , https://www.jintengmachine.com