China Air-Cooled Roots Vacuum Pump Suppliers - High-Performance Factory Equipment with 150 mbar Vacuum Degree
01
The special structural design ensures that the pump will not overheat or overload when operating under high pressure difference and high compression ratio
02
The entire series is equipped with QT500 high-strength ductile iron rotors, with a tensile strength of 500 MPa and an elongation rate of 15%
03
The composite sealing structure technology completely solves the emulsification and leakage problems of the pump oil, making it more stable and reliable;
04
Independently produced and manufactured, with 40 vacuum-related patent technologies, rated as a national high-tech enterprise and a science and technology enterprise, and has passed ISO9001 quality management system certification.
Product Parameters
Model Number |
ZJQ-300 |
ZJQ-600 |
ZJQ-1200 |
ZJQ-2500 |
ZJQ-3750 |
ZJQ-5000 |
| Maximum Suction Rate (L/S) | 300 | 600 | 1200 | 2500 | 3750 | 5000 |
| Limiting Pressure (Pa) | 15000 | 15000 | 15000 | 15000 | 15000 | 15000 |
| Speed (rpm) | 1480 | 1460 | 1470 | 1470 | 1470 | 1470 |
| Rated Power (KW) | 5.5～37 | 7.5～75 | 15～132 | 22～280 | 30～400 | 45～710 |
| Intake & Exhaust Diameters (mm) | 125 | 250 | 300 | 350 | 350 | 400 |
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Note: The motor power of the pump, the heat exchange area of the cooler, and the water consumption are determined based on the actual working pressure difference. Different pressure differences require different motors and coolers, and the water consumption will also vary.
💬 Frequently Asked Questions
Q
What does the model number (e.g., ZJQ-300) indicate?
A
The model number reflects the maximum suction rate of the pump. For example, ZJQ-300 indicates a maximum suction rate of 300 L/S, while ZJQ-5000 can reach up to 5000 L/S, making it suitable for large-scale industrial vacuum applications.
Q
Why is the limiting pressure the same (15000 Pa) across all models?
A
All ZJQ series models share a consistent limiting pressure of 15000 Pa, which reflects the design standard of this pump series. This ensures uniform vacuum performance across different capacity levels, allowing users to select models based on flow rate requirements without compromising pressure specifications.
Q
How is the motor power determined for a specific application?
A
The motor power is not fixed — it is determined based on the actual working pressure difference of your application. Each model offers a power range (e.g., ZJQ-1200 ranges from 15 to 132 KW), and the appropriate motor is selected to match the specific pressure conditions of your system.
Q
Does the cooler specification also vary depending on working conditions?
A
Yes. The heat exchange area of the cooler is directly influenced by the actual working pressure difference. Higher pressure differences generate more heat and therefore require a cooler with a larger heat exchange area to maintain optimal operating temperatures and system efficiency.
Q
How does the intake and exhaust diameter affect pump selection?
A
The intake and exhaust diameter determines the pipe size required for installation. Larger models such as ZJQ-5000 feature a 400 mm diameter, which supports higher volumetric flow rates. Selecting the correct diameter ensures proper system integration and minimizes pressure losses in the pipeline.
Q
Will water consumption change between different models or operating conditions?
A
Yes. Water consumption varies depending on both the model selected and the actual working pressure difference. Since the cooler size changes with pressure conditions, the amount of cooling water required will also differ accordingly. It is recommended to consult the technical team to calculate precise water consumption for your specific application.