Heng Rui Machinery

Zhoushan City, Heng Rui Machinery Co., Ltd. Located in the motherland of the East China Sea, located in the beautiful scenery of Zhejiang Islands, the fourth largest island - the island of Jintang the verge of Shanghai, Ningbo, Zhoushan Port, the world's leading deep-water wharf adjacent.
Zhoushan City Heng Rui Machinery Co., Ltd. is a professional

Film Blowing Machine Screw Suppliers and Injection Molding Barrel Manufacturers

,we are design and manufacture of screw and barrel of production enterprises, the products are mainly used for injection molding machines, chemical fiber machine, film blowing machine, extruder, rubber machine plastic machinery and equipment.
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WHAT WE DO services

WHY CHOOSE US

  • Customization

    We can develop and produce all kinds of products according to customer’s drawings or samples.

  • Port of shipment

    We are close to Ningbo Port and Zhapu Port, so it’s convenient to deliver the products to any other country.

  • Ability

    Our monthly production capacity is more than 300 sets, can meet different requirements from different customers.

  • Services

    Our products are in line with international standards and are mainly exported to Europe, the United States, Australia, Asia and Africa.

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FAQ MORE+

1.HOW LONG CAN I GET THE FEEDBACKS AFTER WE SENT THE INQUIRY?+

We will reply you within 12 hours on workdays.

2.Are you a manufacturer or a trading company?+

We are a manufacturer, and we have foreign trade department. We market our own products.

3.What products can you offer?+

We mainly produce high precision screws and barrels.

News MORE+

  • Screw working characteristics
    Screw working characteristics

    screw speed can be realized as stepless pressure and speed control configuration.
    ② linear guide instead of injection into the guide column to reduce the friction when shooting, improve injection accuracy (optional).
    screw, tube alloy material, quenching and tempering treatment to improve the wear resistance, the injection of Italy Jeffreys electronic ruler, position control accuracy can be controlled at 0.1mm.
    ④ 4-stage injection pressure and speed, 4-stage packing pressure and speed of the independent control is more conducive to injection process adjustment.
    ⑤ Manual back pressure device (CNC back pressure optional) to improve the plastic screw plastic, exhaust and density. Addition of back pressure to increase the elimination of devices to prevent the production of products used to feed the back pressure without loose back into the mold plastic flow into the mold phenomenon

    http://www.hr-screw.com

  • Screw working characteristics

    screw speed can be realized as stepless pressure and speed control configuration.
    ② linear guide instead of injection into the guide column to reduce the friction when shooting, improve injection accuracy (optional).
    screw, tube alloy material, quenching and tempering treatment to improve the wear resistance, the injection of Italy Jeffreys electronic ruler, position control accuracy can be controlled at 0.1mm.
    ④ 4-stage injection pressure and speed, 4-stage packing pressure and speed of the independent control is more conducive to injection process adjustment.
    ⑤ Manual back pressure device (CNC back pressure optional) to improve the plastic screw plastic, exhaust and density. Addition of back pressure to increase the elimination of devices to prevent the production of products used to feed the back pressure without loose back into the mold plastic flow into the mold phenomenon

    http://www.hr-screw.com

Knowledge of the screw MORE+

Standard injection screw General injection molding machine should use standard pitch diameter screw, matched with two high and low pressure conventional screws, widely applicable to the manufacturing of general-purpose plastics and engineering plastics.

Extended injection screw It is a universal type injection screw, which has good plasticizing capacity and compounding performance. The features: high draw ratio (20 - 25), long metering section (30%), light groove in metering section (0.04 - 0.05D), high compression ratio (0.11 - 012D).

Rigid PVC injection screw The features: low draw ratio, short metering section and transmission section, long compression section, deep groove in metering section, low compression ratio. It is suitable for injection moulding of rigid PVC and other plastics with poor thermal stability.