Request a Quote
Leave Your Message
Products Categories
Featured Products

Industrial Screw Vacuum Pump Unit - High-Performance Solutions from China Suppliers and Factory

The Screw vacuum pump unit is expertly designed, featuring a high-performance Rotating vane pump as its primary component, complemented by an LGB oil-free vane pump that serves as the pre-stage. This innovative design ensures that the vane pump effectively establishes the required pre-vacuum for the Rotating vane pump, maximizing overall efficiency. As a leading product from China, our vacuum pump units are produced by reputable Suppliers in the industry. The Rotating vane pump acts as a booster pump, and for each additional stage added in series, the ultimate vacuum capacity of the unit can increase by one order of magnitude. Choose our factory for reliable and advanced vacuum solutions tailored to your needs

    Product Characteristics

    01

    High vacuum

    Ultimate vacuum degree 267Pa - 0.5Pa

    02

    Wide application range

    Suitable for chemical, pharmaceutical, oil, new energy, distillation, rectification, PET sheet extrusion and other processes

    03

    Self-manufactured and produced

    Self-manufactured and produced, with over 40 vacuum-related patent technologies, rated as a national-level high-tech enterprise and a science and technology enterprise, has passed ISO9001 quality management system certification

    04

    Foryou vacuum pump customer cases

    Tsinghua University, Wanguang Food, Hainan Coconut Tree, Coca-Cola, Fuyao Glass Industrial Group, Longliqi Industrial, Adolph Cosmetics, Changhong Chemicals, Chengdu Aircraft, China National Petroleum, Hengyi Caprolactam, Yufeng New Materials, Asia Pharmaceutical Group, Xintianyuan Pharmaceutical, Yuekang Pharmaceutical Group, Deliangfang Pharmaceutical, Yanjing Beer, Baiwei Beer, Chinese Academy of Sciences, Huayuan New Energy, Zunxinnew Energy, etc., 200+ specialized industries and 10000+ customers. The top players in multiple industries are all using Foryou vacuum pumps.

    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 is the limiting pressure of the JZJLG series vacuum pump units?
    The JZJLG series units are available in two limiting pressure grades. Standard models achieve a limiting pressure of ≤1 Pa, while advanced three-stage models (e.g., JZJLG150-2.1 and above) can reach ≤0.1 Pa, making them suitable for higher-vacuum applications.
    Q How do I select the right JZJLG unit model for my application?
    Selection should be based on your actual vacuuming process, including the gas release process, condensation of non-condensable gases, and changes in intake pressure over time. It is recommended to perform detailed calculations for your specific working conditions or refer to the usage conditions of existing similar equipment.
    Q What is the difference between two-stage and three-stage JZJLG pump units?
    Two-stage units consist of a main pump (ZJP series Roots pump) and a pre-stage pump (LGB series liquid ring pump), with no middle pump. Three-stage units add an intermediate ZJP Roots pump between the main pump and pre-stage pump, enabling a much lower limiting pressure of ≤0.1 Pa compared to ≤1 Pa for two-stage units.
    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 (JZJLG70-1) up to 2500 L/S (JZJLG2500-4.2), allowing users to choose the appropriate capacity based on their process volume and required pump-down time.
    Q What is the total motor power range for these vacuum pump units?
    Total motor power ranges from 7 KW for the smallest unit (JZJLG70-1) to 48 KW for the largest unit (JZJLG2500-4.2). Power requirements increase with both the vacuum extraction rate and the number of pump stages in the system.
    Q Can the standard JZJLG series be customized for special working conditions?
    Yes. While the table presents the recommended standard series, actual production conditions vary. The intake gas composition, pressure fluctuations, and process requirements may differ significantly. In such cases, a customized configuration can be designed based on detailed process analysis to ensure optimal performance and reliability.

    Leave Your Message