China Industrial Screw Vacuum Pump Unit - High-Performance Suppliers and Factory Solutions
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
Independently manufactured
Independently manufactured, with over 40 vacuum-related patents, rated as a national high-tech enterprise and a science and technology enterprise, has passed ISO9001 quality management system certification
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 |
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 does the limiting pressure (≤1 Pa or ≤0.1 Pa) mean for these vacuum pump units?
The limiting pressure refers to the lowest pressure that the vacuum pump unit can achieve under ideal, no-load conditions. Units with ≤1 Pa are suitable for standard high-vacuum applications, while units with ≤0.1 Pa are designed for ultra-high vacuum processes requiring a three-stage pump configuration including a middle pump.
Q
How do I select the right JZJLG vacuum unit model for my application?
Selection should be based on your actual process requirements, including the required vacuum level (limiting pressure), the volume of gas to be evacuated (extraction rate in L/S), and the nature of the gases involved. It is recommended to perform detailed calculations based on your vacuuming process, gas release characteristics, and intake pressure changes over time, or consult existing equipment usage data.
Q
What is the difference between models with a middle pump and those without?
Models without a middle pump (indicated by "- -" in the Middle Pump column) operate as two-stage systems and can achieve a limiting pressure of ≤1 Pa. Models with a middle pump (e.g., ZJP70, ZJP150, ZJP300, ZJP600) form a three-stage configuration capable of achieving a much lower limiting pressure of ≤0.1 Pa, making them suitable for more demanding vacuum environments.
Q
Why do some models with the same extraction rate have different total motor power ratings?
Models with the same extraction rate may use different pre-stage pump configurations (e.g., LGB120 vs. LGB150 vs. LGB200), which have different power ratings. The choice of pre-stage pump depends on the required pumping speed at the inlet stage and the specific working conditions, which directly affects the total motor power of the unit.
Q
Can these vacuum pump units handle condensable gases or corrosive media?
The standard JZJLG series units are designed for general industrial vacuum applications. For processes involving condensable gases or corrosive media, additional considerations such as gas ballast valves, corrosion-resistant materials, or specialized pump configurations may be required. It is advised to consult the manufacturer for customized solutions based on your specific process conditions.
Q
Are these models part of a standard series or can they be customized?
The models listed in the table represent the recommended standard series configurations. However, since actual production working conditions vary significantly — including differences in intake gas composition, pressure ranges, and process timing — customized configurations can be developed. Customers are encouraged to provide detailed process parameters so that the most suitable pump combination can be engineered for their specific application.