High-Speed Roots Vacuum Pump from China Suppliers | Reliable Factory Solutions for Boosting Vacuum Levels
01
The composite sealing structure technology completely solves the emulsification and leakage problems of vacuum pump oil, making it more stable and reliable.
02
The accessories are precisely manufactured by imported processing centers, with strict control of the gaps between rotors and between rotors and the pump body, ensuring stable operation when the gap is less than 0.05mm.
03
The use of precision gears (5-level accuracy) for rotation and precision couplings for connection ensures the smoothness and accuracy of the pump's operation, with extremely low running noise.
04
High-strength, high lateral force precision bearings from fully imported (SKF/NSK) are selected and lubricated by splash lubrication, which can greatly extend the pump's service life.
05
A bypass valve is set inside, allowing the Roots vacuum pump and the preceding vacuum pump to almost simultaneously start under atmospheric conditions to shorten the pumping time.
06
Tsinghua University, Wanguang Food, Hainan Coconut Tree, Coca-Cola, Longliqi Industrial, Adolph Cosmetics, Changhong Chemicals, Chengdu Aircraft Industry Group, China Petroleum, Hengyi Caprolactam, Yufeng New Materials, Asia Pharmaceutical Group, Xintianyuan Pharmaceutical, Yuekang Pharmaceutical Group, Deliangfang Pharmaceutical, Yanjing Beer, Baiwei Beer, Chinese Academy of Sciences, Huayuan New Energy, Zunxin Innovation Energy, etc., covering 200+ specialized industries and 10,000+ customers. The top players in multiple industries are all using Foryou Vacuum Pumps.
Product Parameters
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ZJP / ZJ Series — Technical Specifications
| Model Number | Maximum Suction Rate (L/S) | Intake Diameter (mm) | Exhaust Pipe Diameter (mm) | Noise ≤dB(A) | Motor Power (kW) | Speed (r/min) |
|---|---|---|---|---|---|---|
| ZJP-30 | 30 | 80 | 50 | 78 | 1.5 | 1420 |
| ZJP-70 | 70 | 80 | 50 | 78 | 1.5 | 2840 |
| ZJP-150 | 150 | 100 | 80 | 81 | 3 | 2880 |
| ZJP-300 | 300 | 150 | 100 | 82 | 4 | 2890 |
| ZJP-600 | 600 | 200 | 150 | 84 | 7.5 | 2900 |
| ZJ-1200 | 1200 | 250 | 200 | 85 | 11 | 2940 |
| ZJ-2500 | 2500 | 300 | 250 | 87 | 22 | 2940 |
| ZJ-5000 | 5000 | 400 | 400 | 88 | 37 | 2940 |
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Frequently Asked Questions
Q
What is the difference between the ZJP series and the ZJ series pumps?
The ZJP series (ZJP-30 to ZJP-600) covers smaller to mid-range suction rates from 30 to 600 L/S, while the ZJ series (ZJ-1200 to ZJ-5000) is designed for larger industrial applications with suction rates up to 5000 L/S. The ZJ series also requires higher motor power and features larger intake and exhaust pipe diameters.
Q
Which model should I choose for a high-vacuum industrial application requiring over 1000 L/S?
For applications requiring a suction rate above 1000 L/S, we recommend the ZJ series. The ZJ-1200 offers 1200 L/S at 11 kW, the ZJ-2500 delivers 2500 L/S at 22 kW, and the ZJ-5000 provides the highest capacity at 5000 L/S powered by a 37 kW motor.
Q
What are the noise levels across the ZJP / ZJ pump series?
Noise levels range from ≤78 dB(A) for the smaller ZJP-30 and ZJP-70 models up to ≤88 dB(A) for the largest ZJ-5000. Generally, noise increases with suction capacity and motor power. Appropriate sound insulation or protective enclosures are recommended for high-capacity models in noise-sensitive environments.
Q
How do I determine the correct intake and exhaust pipe diameters for installation?
Each model specifies its intake and exhaust pipe diameters in the technical table above. For example, the ZJP-300 requires a 150 mm intake and 100 mm exhaust, while the ZJ-5000 uses 400 mm for both. It is essential to match the pipeline dimensions precisely to the pump specifications to ensure optimal performance and avoid pressure loss.
Q
What motor power supply is required for the ZJ-5000 model?
The ZJ-5000 requires a 37 kW motor running at 2940 r/min. A three-phase industrial power supply is typically required for models of this capacity. Please consult a qualified electrical engineer to ensure your facility's power infrastructure meets the necessary requirements before installation.
Q
Can the ZJP / ZJ series pumps be used in combination with backing pumps?
Yes. The ZJP and ZJ series Roots vacuum pumps are typically used in combination with backing pumps (such as rotary vane or rotary piston pumps) to achieve the desired vacuum level. The backing pump maintains the fore-vacuum necessary for the Roots pump to operate efficiently. The correct backing pump model should be selected based on the Roots pump's suction rate and the target vacuum pressure of your application.