China Industrial Screw Vacuum Pump Unit Suppliers - Factory Direct Boosting Solutions for Ultimate Vacuum Capacity
01
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
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.
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Frequently Asked Questions
Q
What does the limiting pressure value indicate in the JZJLG vacuum unit series?
The limiting pressure indicates the lowest achievable pressure level of the vacuum unit under ideal operating conditions. Units in this series are available with limiting pressures of ≤1 Pa and ≤0.1 Pa, allowing selection based on the specific vacuum depth required by your application.
Q
What is the difference between models with ≤1 Pa and ≤0.1 Pa limiting pressure?
Models rated ≤1 Pa consist of a main pump and a pre-stage pump, with no middle pump. Models rated ≤0.1 Pa incorporate an additional middle pump (e.g., ZJP70, ZJP150, ZJP300, or ZJP600) between the main pump and pre-stage pump, enabling a deeper vacuum level through multi-stage pumping.
Q
How should I select the appropriate vacuum unit model for my application?
Selection should be based on your actual process requirements, including the vacuuming process, gas release behavior, condensation of non-condensable gases, and changes in intake pressure over time. It is also recommended to reference the operating conditions of existing similar equipment to ensure an accurate match.
Q
What vacuum extraction rates are available in the JZJLG series?
The JZJLG series covers a wide range of vacuum extraction rates, from 70 L/S (model JZJLG70-1) up to 2500 L/S (model JZJLG2500-4.2), making it suitable for both small-scale laboratory applications and large-scale industrial production processes.
Q
What is the role of the pre-stage pump (LGB series) in the vacuum unit?
The pre-stage pump, represented by the LGB series (e.g., LGB50, LGB80, LGB120, LGB200), serves as the backing pump in the system. It maintains the discharge pressure of the main Roots pump within its allowable range and plays a critical role in establishing and sustaining the vacuum environment during continuous operation.
Q
Why do models with the same extraction rate have different total motor power values?
Models with the same nominal extraction rate (e.g., 300 L/S) may use different pre-stage pump configurations (LGB150 vs. LGB200), which results in different total motor power outputs. The choice between configurations depends on specific process conditions, desired pumping speed at various pressure ranges, and energy efficiency considerations.