China Industrial Screw Vacuum Pump Unit - Reliable Factory Suppliers for High-Performance Vacuum Solutions
01
Simple and compact structure
Composed of counter-rotating screws, pump body, end cover, sealing components, etc., the structure is very simple
02
Independently produced and manufactured
Independently produced and manufactured, with over 40 patent technologies, rated as a high-tech enterprise and a science and technology enterprise, and has passed ISO9001 quality management system certification
03
No friction in the pumping chamber
There is a certain gap between the screw and the pump body
04
Provide three corrosion-resistant material options
Nickel-phosphorus alloy, Hastelloy alloy, Teflon
05
High vacuum degree
A single screw dry vacuum pump can replace a three-stage Roots pump water ring vacuum unit
06
Can be combined with Roots pumps to form a vacuum system
Can be combined with Roots pumps to form a vacuum system, achieving higher ultimate vacuum degree and increasing pumping speed
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 value in the JZJLG vacuum unit series indicate?
The limiting pressure indicates the lowest achievable pressure level of the vacuum unit under ideal conditions. Units listed with ≤1 Pa are suitable for standard high-vacuum applications, while units with ≤0.1 Pa are designed for ultra-high-vacuum processes requiring significantly lower pressure environments.
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 necessary pumping speed (vacuum extraction rate in L/S), and the nature of the gases involved. It is recommended to perform calculations based on the vacuuming process, gas release rates, condensation behavior, and changes in intake pressure over time, or consult existing equipment usage data.
Q
What is the role of the middle pump in the three-stage vacuum unit configurations?
In three-stage configurations (e.g., JZJLG150-2.1 and above with ≤0.1 Pa), the middle pump acts as an intermediate booster between the main pump and the pre-stage pump. It helps achieve deeper vacuum levels by providing an additional compression stage, allowing the system to reach pressures as low as ≤0.1 Pa. Two-stage units (with "- -" listed for the middle pump) are sufficient for ≤1 Pa applications.
Q
Why does the same vacuum extraction rate (e.g., 300 L/S) appear in multiple unit models?
Different unit models with the same extraction rate (such as JZJLG300-1, JZJLG300-2A, and JZJLG300-2B) differ in their pre-stage pump configurations and total motor power. The choice among them depends on factors such as available power supply, energy efficiency requirements, cost considerations, and the specific gas load and process conditions of your application.
Q
Are the models in this table the only available configurations?
No. The table represents the recommended standard series. Since actual production working conditions vary widely — including differences in gas types, inlet pressures, temperature, and process cycles — custom configurations may be developed. Customers are encouraged to consult with our technical team to tailor a solution that best matches their specific operational requirements.
Q
What types of industries or processes are JZJLG vacuum units typically used for?
JZJLG vacuum units are widely applied in industries such as metallurgy (vacuum smelting and degassing), chemical processing, pharmaceutical manufacturing, electronics (semiconductor production and coating), food packaging, and scientific research. Their high pumping speeds and deep vacuum capability make them suitable for any process requiring reliable high-vacuum environments.