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Injection Molding Machine Screw Barrel

Injection Molding Machine Screw Barrel

    Delivery Time: 30 Days
    Packaging: wooden case
    Brand: JINMAO
    Place of Origin: Zhejiang, China (Mainland)

Basic Info

Model No.: dia20-dia220

Product Description

Injection Molding Machine Screw Barrel   Injection Molding Machine Barrel and Screw Specification 
100KN-35,000KN Clamping Force 
30-30,000g Injection Volume 
Screw Diameter  dia20-dia220 
Screw structure and compression ratio can be designed according to different products and parts.   

Technical Parameter

Quenching and Tempering Hardness HB280-320

Screw Straightness    0.015mm

Nitriding Hardness   HV850-1000

Nitrided Chromium Coating Surface Hardness≥900HV

Nitriding Depth   0.45~0.7mm

Chromium Coating Thickness  0.025~0.10mm

Nitridng Brittleness   2 Level

Duplex Alloy Hardness   HRC50-65

Surface Roughness   ≤Ra0.4

Duplex Alloy Depth   0.8~2.0mm

Materials and Technologies

Quality 38CrMoAIA (41CrAIMo7)


Quality Duplex Stainless Steel



Quality Powder Metallurgy Materials 


Hard Metal Cold/Thermal Spraying Technology

Zinc 3# Steel 

Advanced Nitriding Technology

Anti-corrosion and Wear-resisting Duplex Metal Spraying Technology



Zhoushan Jinmao Machinery Manufacturing Factory

 Zhoushan Jinmao Machinery Manufacturing Factory is the largest manufacturer in China that specializes in research, design and manufacture of a full series of screws, barrels, assembly parts, applied for various extruding machines and Plastic Injection Molding machines. In addition, we also design and manufacture screws with special alloys and special flight geometry to meet specific customer applications. We not only offer the best possible screws and barrels, but also provide solutions to help customers solve extruding and injection molding problems.

JINMAO's design engineers have outstanding theoretical background and practical experience, providing optimum designs of screws and barrels for our customers. Our engineers conduct thorough analysis according to customers machine model, production capacity required and resin properties before design. All related parameters that may affect screw performance are designed based on theorem, such as screw type, L/D ratio, flight depth, flight density, helix angle and so on. This outstanding design capability will ensure JINMAO's screws and barrels help customers upgrade product quality and production efficiency.

With more than ten years constant efforts, our factory occupies more than 10,000 M2 and equipped with kinds of advanced CNC processing machines. Furthermore, we have improved our yearly production ability of over 20000 sets screws and barrels. We have passed the ISO 9001:2008 International Quality System, our every production process is under strict inspection to ensure that only high-quality products are delivered to our customers.

Till now, our screws and barrels have been exported to more than 40 countries all over the world. We will make more efforts to be perfect with the development policy of "service, quality, professionality". We will continue to exert our best to provide best products and services to customers. Your satisfaction is our unremitting pursue.

Welcome to JINMAO. The Quality Company.

Company Info

  • Company Name: Zhoushan Jinmao Machinery Manufacturing Factory
  • Representative: tangshanguo
  • Product/Service: Extruder Screw Barrel , Injection Screw Barrel , Rubber Screw Barrel , Twin Screw Barrel , Bimetallic screw barrel , Extruder and production line
  • Capital (Million US $): 3,000,000RMB
  • Year Established: 2003
  • Total Annual Sales Volume (Million US $): US$50 Million - US$100 Million
  • Export Percentage: 11% - 20%
  • Total Annual Purchase Volume (Million US $): US$5 Million - US$10 Million
  • No. of Production Lines: 5
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: 5 -10 People
  • OEM Services Provided: no
  • Factory Size (Sq.meters): Below 1,000 square meters
  • Factory Location: No.132,Xingang Road,Jintang Town,Dinghai District,Zhoushan,Zhejiang,China
  • Contact Person: Ms. Linda Tang
  • Tel: 86-580-8050975
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