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China Air-Cooled Roots Vacuum Pump - High Performance Factory Suppliers for Efficient Vacuum Solutions

Discover our high-performance vacuum pumps, designed for optimal efficiency and durability. When operated independently, these pumps can achieve a working vacuum level as low as 150 mbar in direct atmospheric conditions. Our innovative structural design prevents overheating and overload even under high pressure differentials and compression ratios, ensuring long-lasting operation, Manufactured in China, our entire product line features QT500 high-strength ductile iron rotors, boasting a tensile strength of 500 MPa and an impressive elongation rate of 15%. As reliable suppliers and a leading factory in the industry, we prioritize quality and performance in every pump we offer. Trust us to meet your vacuum needs with unmatched reliability and expertise
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    Product Characteristics

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    Product Parameters

    Product Details

    Model number

    ZJQ-300

    ZJQ-600

    ZJQ-1200

    ZJQ-2500

    ZJQ-3750

    ZJQ-5000

    Maximum suction rate (L/S)

    300

    600

    1200

    2500

    3750

    5000

    Limiting pressure (Pa)

    15000

    15000

    15000

    15000

    15000

    15000

    Speed (rpm)

    1480

    1460

    1470

    1470

    1470

    1470

    Rated power (KW)

    5.5～37

    7.5～75

    15～132

    22～280

    30～400

    45～710

    Intake and exhaust diameters (mm)

    125

    250

    300

    350

    350

    400

    Note: The motor power of the pump, the heat exchange area of the cooler, and the water consumption are determined based on the actual working pressure difference. Different pressure differences require different motors and coolers, and the water consumption will also vary.

    Frequently Asked Questions
    Q
    What is the maximum suction rate available across the ZJQ pump series?
    A
    The ZJQ pump series ranges from a maximum suction rate of 300 L/S (ZJQ-300) up to 5000 L/S (ZJQ-5000), making it suitable for a wide variety of vacuum application scales.
    Q
    What is the limiting pressure for all ZJQ pump models?
    A
    All models in the ZJQ series share a uniform limiting pressure of 15,000 Pa, ensuring consistent vacuum performance across the entire product line.
    Q
    How is the motor power determined for a specific ZJQ pump?
    A
    The motor power is determined based on the actual working pressure difference of your application. Each model offers a power range (e.g., ZJQ-1200: 15–132 KW), and the appropriate motor within that range is selected according to your specific operating conditions.
    Q
    Does the cooler specification change depending on the working pressure difference?
    A
    Yes. The heat exchange area of the cooler is directly influenced by the actual working pressure difference. Higher pressure differences typically require a larger heat exchange area to maintain efficient operation and prevent overheating.
    Q
    What are the intake and exhaust diameter options across the ZJQ series?
    A
    The intake and exhaust diameters range from 125 mm (ZJQ-300) to 400 mm (ZJQ-5000). Mid-range models such as the ZJQ-2500 and ZJQ-3750 share a diameter of 350 mm, while the ZJQ-600 uses 250 mm and the ZJQ-1200 uses 300 mm.
    Q
    Are the operating speeds consistent across all ZJQ pump models?
    A
    The operating speeds are very close across all models, ranging between 1460 and 1480 rpm. The ZJQ-300 runs at 1480 rpm, the ZJQ-600 at 1460 rpm, and all larger models (ZJQ-1200 through ZJQ-5000) operate at 1470 rpm.

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