China Industrial Screw Vacuum Pump Unit Supplier - High-Performance Factory Solutions for Ultimate Vacuum Capacity
01
High vacuum
Ultimate vacuum ≤ 1Pa
02
High pumping speed
Pumping capacity 70L/S - 20000L/S
03
Energy saving
Motor power 5.5KW - 180KW
04
Oil-free and water-free dry operation
Oil-free and water-free dry operation, environmentally friendly and emission reduction, 100% solvent recovery;
Product Parameters
| Unit Model | Limiting Pressure (Pa) | Vacuum Extraction Rate (L/S) | Main Pump | Middle Pump | Pre-stage Pump | Total Motor Power (KW) |
|---|---|---|---|---|---|---|
| JZJLG70-1 | ≤1 Pa | 70 | ZJP70 | - - | LGB50 | 7 |
| JZJLG150-2 | 150 | ZJP150 | - - | LGB80 | 10.5 | |
| JZJLG150-1 | 150 | ZJP150 | - - | LGB120 | 14 | |
| JZJLG300-1 | 300 | ZJP300 | - - | LGB200 | 22.5 | |
| JZJLG300-2A | 300 | ZJP300 | - - | LGB150 | 19 | |
| JZJLG300-2B | 300 | ZJP300 | - - | LGB120 | 15 | |
| JZJLG600-2 | 600 | ZJP600 | - - | LGB200 | 26 | |
| JZJLG150-2.1 | ≤0.1 Pa | 150 | ZJP150 | ZJP70 | LGB50 | 10 |
| JZJLG300-2.1 | 300 | ZJP300 | ZJP150 | LGB120 | 18 | |
| JZJLG600-2.2 | 600 | ZJP600 | ZJP300 | LGB150 | 26.5 | |
| JZJLG1200-2.2 | 1200 | ZJ1200 | ZJP600 | LGB200 | 37 | |
| JZJLG2500-4.2 | 2500 | ZJ2500 | ZJP600 | LGB200 | 48 |
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Explanation
The table represents the recommended standard series. Due to the varying working conditions in actual production applications, the intake gas and pressure will undergo many changes. Therefore, during the selection process, calculations should be conducted based on the actual vacuuming process, gas release process, condensation of non-condensable gases, changes in intake pressure over time, etc., or the selection should be made by referring to the usage conditions of existing equipment.
💬 Frequently Asked Questions
Q
What is the difference between the ≤1 Pa and ≤0.1 Pa unit series?
The ≤1 Pa series units use a two-stage configuration (main pump + pre-stage pump) without a middle pump, making them suitable for applications requiring moderate vacuum levels. The ≤0.1 Pa series adds a middle pump stage (e.g., ZJP70, ZJP150, ZJP300, or ZJP600) to achieve a deeper ultimate vacuum, making them ideal for more demanding industrial processes.
Q
How do I select the correct unit model for my application?
Selection should be based on your actual vacuuming process, including the required vacuum level (limiting pressure), gas load, gas release characteristics, condensation of non-condensable gases, and how intake pressure changes over time. It is recommended to perform detailed calculations or consult with our engineers before making a final selection.
Q
What does the vacuum extraction rate (L/S) indicate?
The vacuum extraction rate, measured in liters per second (L/S), indicates the volumetric pumping speed of the unit — that is, how quickly the system can remove gas from the vacuum chamber. A higher extraction rate means faster evacuation, which is critical for large-volume chambers or processes requiring rapid cycle times.
Q
Can these units be customized for non-standard working conditions?
Yes. The table reflects the recommended standard series configurations. Since actual production conditions vary significantly — including different gas compositions, pressures, and temperature ranges — custom configurations can be designed and engineered to match your specific process requirements. Please contact us with your detailed process parameters for a tailored solution.
Q
What types of pre-stage pumps are used in these vacuum units?
The pre-stage pumps used across the series are LGB-type pumps, including LGB50, LGB80, LGB120, LGB150, and LGB200 models. These pumps serve as the backing pumps that bring the system down to an intermediate pressure level before the main and middle pumps take over to achieve the target ultimate vacuum.
Q
How does total motor power affect operational costs?
Total motor power (KW) directly impacts energy consumption and operational costs. Units in this series range from 7 KW to 48 KW depending on the model and configuration. Selecting a unit appropriately sized for your process — rather than over-specifying — helps minimize energy usage and reduces long-term operating expenses. Always factor in duty cycle and run time when estimating total energy costs.