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Oil-Free Screw Vacuum Pump Technology | China Suppliers & Factory for High-Performance Vacuum Solutions

The oil-free screw vacuum pump, a leading product of our factory in China, is engineered with advanced technology and innovative design. It consists of key components such as a screw rotor, casing, gears, cooling circulation, and sealing elements. The drive shaft connects the driving rotor, enabling the rotors to rotate in opposite directions through high-precision synchronous gears. This unique mechanism facilitates three critical processes: gas intake, compression, and exhaust, effectively achieving optimal vacuum extraction, As one of the premier suppliers in the region, we take pride in our independently developed screw vacuum pumps, protected by multiple patents (patent numbers: ZL 2016 2 0170088.6, ZL 2018 2 1791288.9, ZL 2021 2 0388238.1, ZL 2022 2 01778327.8). Our innovative profile design directly enhances key performance indicators such as ultimate vacuum, pumping rate, volumetric efficiency, vibration, and noise levels. This ensures exceptional stability and performance across a variety of environmental processes, making our oil-free screw vacuum pump a reliable choice for your industrial needs

    Product Characteristics

    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

    04

    Provide three corrosion-resistant material options

    Nickel-phosphorus alloy, Hastelloy alloy, Teflon

    05

    Dry operation

    Dry operation, easier to recover solvents

    Product Parameters

    Model
    Number
    Vacuum Extraction Rate
    (L/S)
    Power
    (KW)
    Limiting Pressure
    (Pa)
    Speed
    (rpm)
    Cooling Water
    (L/min)
    LGB-10 10 1.1 5 2900 0
    LGB-15 15 1.5 5 2900 0
    LGB-20 20 2.2 5 2900 0
    LGB-50 50 5.5 5 2900 8
    LGB-80 80 7.5 5 2900 10
    LGB-120 120 11 5 2900 12
    LGB-150 150 15 5 2900 14
    LGB-200 200 18.5 5 2900 18
    LGB-220 220 22 5 2900 20
    LGB-300 300 30 5 2900 25
    LGB-400 400 37 5 2900 30
    ❓ Frequently Asked Questions
    Q What is the vacuum extraction rate range available in the LGB series pumps?
    The LGB series covers a wide vacuum extraction rate range from 10 L/S (LGB-10) up to 400 L/S (LGB-400), making it suitable for a broad range of industrial vacuum applications with varying capacity requirements.
    Q What is the limiting pressure for all LGB series models?
    All models in the LGB series share a uniform limiting pressure of 5 Pa, ensuring consistent and reliable vacuum performance across the entire product lineup regardless of the model size.
    Q Do all LGB series pumps operate at the same speed?
    Yes, all LGB series models operate at a standard speed of 2900 rpm, which ensures stable rotational performance and consistent vacuum output across all capacity variants.
    Q Which LGB models require cooling water, and how much is needed?
    Smaller models (LGB-10, LGB-15, LGB-20) do not require cooling water (0 L/min). From LGB-50 onwards, cooling water is required: LGB-50 needs 8 L/min, with requirements increasing progressively up to 30 L/min for the LGB-400 model.
    Q How much power does the largest LGB-400 model consume?
    The LGB-400, the highest-capacity model in the series with a vacuum extraction rate of 400 L/S, has a power consumption of 37 KW. Power requirements across the series scale proportionally with the extraction capacity.
    Q How do I select the right LGB model for my application?
    Selecting the right LGB model depends on your required vacuum extraction rate (L/S), available power supply (KW), and whether your facility can provide cooling water. For light-duty applications with lower throughput, the LGB-10 to LGB-20 range is ideal. For high-volume industrial processes, the LGB-200 to LGB-400 models are recommended. Always consult the specifications table and your application requirements before making a selection.

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