Gold Member Since 2012
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Zhejiang Zhongyang Screw Manufacturing Co., Ltd.

Screw for Rubber Machinery, Screw Barrel, Rubber Screw Barrel manufacturer / supplier in China, offering Rubber Screw Plastic Rubber Extruder Screw Barrel, Twin Co-Rotating Screw Elements Tin Screw Barrel, Twin Parallel Screw Barrel Double Screw Barrel PVC Granule Profile/Pellets and so on.

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Supplier Homepage Product Screw barrel for rubber machinery Rubber Screw Plastic Rubber Extruder Screw Barrel

Rubber Screw Plastic Rubber Extruder Screw Barrel

FOB Price: US $50 / Piece
Min. Order: 1 Set
Min. Order FOB Price
1 Set US $50/ Piece
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Production Capacity: 1500 Sets/Month
Transport Package: Wooden Case
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: Rubber screw
  • Type: General Rubber Machinery
  • Type of Tire Machinery: Rubber Regeneration Machinery
  • Specification: ISO9001: 2008
  • HS Code: 84779000
  • Certification: ISO
  • Type of General Rubber Machinery: Rubber Extruder
  • Trademark: Zhongyang
  • Origin: Zhoushan
Product Description
Rubber Machine Screw barrel, rubber extrusion screw barrel, plastic machinery screw barrel, rubber screw

Specification:
Diameter of pin screw and barrel: Φ 75mm-Φ 200mm
Diameter of cold feed or hot feed screw and barrel: Φ 30mm-Φ 300 mm
L/D ratio: 12-18

Technical Information

Base Materials:
1)38CrMoAlA(JIS SACM645)
2)42CrMo(AISI 4140)
3)4Cr5MoSi V1 (JIS SKD-61)
4)9Cr18MOV
5)HPT

Bimetallic alloy materials:
1)Fe-based alloy
2)Ni-based alloy/Deloro alloy
3)Co-based alloy
4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide

Technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding
Bimetallic alloy centrifugal casting

Technical parameter:
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: 900-1000HV
Nitrided brittleness: Less than grade 1
Surface roughness: Ra0.4
Linearity of screw: 0.015mm
Hard-chrome plating hardness after nitriding: >=950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm

Warranty and service: 1 year

Our advantages:
1)Excellent raw materials
2)Good customer service
3)Rapid delivery
4)Reasonable price
5)Production quickly

Experienced manufacture, we will be the best choice.
Base Material 1)38CrMoAlA(JIS SACM645)
2)Cr12MOV(JIS SKD-11) 
3)4Cr5MoSiV1(JIS SKD-61)  4)42CrMo(AISI 4140) 
5)9Cr18MoV
Bimetallic Alloy Materials 1)Fe-based alloy 
2)Ni-based alloy/Deloro alloy 
3)Co-based alloy 
4)NiCo-based alloy 
5)Tungsten carbide/Wolfram carbide 
Bimetallic Alloy level  
Level A - containing Tungsten of 40%
Level B - containing tungsten of 25%
Level C - containing tungsten of 9.5%
Designing   Screw structure and compression                 
ratio can be designed according 
to different products  & different 
clamping force requirement.
Treatment  Technology 1)Longer time Gas Nitriding treatment 
2)special anti-wear & abrasion alloy (bimetallic)
3)tungsten carbide
4)cobalt base alloy
5)stainless steel 
6)Gh113 nickel based alloy  
Treatment
Nitriding treatment(>100 Hours)
Depth of Nitrided Layer: 0.5-0.8 mm
Hardness of Nitrided Layer: >950Hv 
Hard Chrome Plating treatment:
Thickness of Hard Chrome Plating Layer: 0.03-0.08mm
Hardness of Hard Chrome Plating Layer: ≥950HV
Nickel alloy plating.treatment:
Bimetallic Barrel Centrifugal Casting (Inlay Alloy)
Bimetallic Screw: Plasma Alloy Coating Spraying
Depth of Bimetallic Layer: >2mm
Hardness of Bimetallic Layer: HRC55°-65°
 Material Application
1)General Plastics
2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc
3)PA + GF(Glass Fiber)
4)Flame-resistant Reinforced Plastics
5)Modified Engineering Plastics
6)All kinds of Mixed Recycled Material(in Scrap or Granule),etc
    Basic     Infomation Surface Roughness :Ra0.4um
Linearity of the screw: ≤0.015mm
Linear axis limit: ≤0.02mm
Hardness after Hardening & Tempering: HB260-300
Fragility of Nitration:≤Two grade
Screw Diameter: 14mm-Φ300*8000mm
  Technical Index: 15g-25000gram 
Clamping force: 25KN-35000KN
General Terms
Means of transport:  Ocean,Air,Express
Production time : About 20 days after we receive the deposit and lead time will different according to the order quantity.
Warranty period   2-4years(Depends on the plastic raw materials)
Bimetallic:  much longer lifetime.
Competitive   Edge 1 . Long lifetime,low energy consumption.
  2. Wonderful plasticizing
 3. Top-quality bimetallic screw and barrel
 4. High wear resistance, resistance to corrosion
 5.  Fast and On time delivery
 6.  Best customer after-sale service!
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