Bimetallic screw and barrel manufacturer

Payment Terms: T/T,L/C,D/A,D/P,WU
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Basic Info.
  • Plastic Type: Others 
  • Use: Others 
  • Shaft Design: Others 
  • Brand Name: JINMAO 
  • standard: ISO9001:2008 
  • Min.Order: 1 Set/Sets
  • Means of Transport: Ocean, Air, Land
Supply Capacity
  • Production Capacity: 500 set / month
  • Packing:wooden case
  • Delivery Date: 25 days

Bimetallic screw and barrel
The duplex metal barrel is casted with a layer of 2-5mm wear-resisting, anti-corrosion and heat-resisting alloy on the inner-wall, which has a longer service life compared to common nitrided barrel. Duplex metal has an obvious advantage in processing of engineering plastics, fluoro plastics, polysulfone, PPO special plastics, etc.
Our duplex alloy single screws are sprayed with special alloy powder on the arrises. Screws with different functions are made of different alloys and with different welding methods.
The twin screw duplex metal barrel is sprayed with a layer of 1-3mm wear-resisting, anti-corrosion and heat-resisting alloy on the inner-wall, which has a longer service life compared to common nitrided barrel. Duplex metal has an obvious advantage in processing ingredient with high PVC calcium powder and prolonging service life.
Our duplex alloy twin screws are sprayed with special alloy powder on the arrises. Screws with different function are made of different alloys and with different welding methods.

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)

SKD61(H13)

Quality Duplex Stainless Steel

Gr12MoV

42CrMo

Quality Powder Metallurgy Materials

40Cr

Hard Metal Cold/Thermal Spraying Technology

Zinc 3# Steel

Advanced Nitriding Technology

Anti-corrosion and Wear-resisting Duplex Metal Spraying Technology





Send message to this supplier
Ms. Linda Tang (Sales Manager)
Tel: 86-580-8050975
Mobile: 86-15088892042
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Contact Method
Zhoushan Dinghai Jinmao Plastifying Machinery Manufacturing Factory
No.132, Xingang Road, Jintang Town, Zhoushan, Zhejiang, China (Mainland) / 316032
Fax: 86-580-8050162
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