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+

  • Brief description of the type of extruder screw
    Brief description of the type of extruder screw

    According to the different screw structure and thread geometry, the screw can be divided into ordinary screw, new screw and Extruder Screw.

    1. Exhaust type screw A special type of screw specially designed to smoothly remove the air, volatile gas and water vapor in the extruded material.

    2. The difference between the new type of screw and the ordinary type of screw is that: some non-threaded components are placed on the threaded part of the screw, such as adding a round pin or adding a different thread from the original thread to improve the plastic. The effect of mixing and plasticizing improves the quality of melting and plasticizing of materials, shortens the extrusion time, and increases the production volume.

    3. Ordinary Screws One of the most used and most common types of screws is widely used in various types of extruders. According to the pitch and thread depth on the screw, it can be divided into equal thread pitch and thread groove depth type, thread pitch and thread groove depth of the same type and thread pitch, thread groove depth are not equal to the type of screw.

  • Brief description of the type of extruder screw

    According to the different screw structure and thread geometry, the screw can be divided into ordinary screw, new screw and Extruder Screw.

    1. Exhaust type screw A special type of screw specially designed to smoothly remove the air, volatile gas and water vapor in the extruded material.

    2. The difference between the new type of screw and the ordinary type of screw is that: some non-threaded components are placed on the threaded part of the screw, such as adding a round pin or adding a different thread from the original thread to improve the plastic. The effect of mixing and plasticizing improves the quality of melting and plasticizing of materials, shortens the extrusion time, and increases the production volume.

    3. Ordinary Screws One of the most used and most common types of screws is widely used in various types of extruders. According to the pitch and thread depth on the screw, it can be divided into equal thread pitch and thread groove depth type, thread pitch and thread groove depth of the same type and thread pitch, thread groove depth are not equal to the type of screw.

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.