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Zhejiang Zhongyang Screw Manufacturing Co., Ltd.

Twin Paralelle Screw Cylinder, Twin Screws Barrel, Pvc Granule Extrusion Screw Barrel manufacturer / supplier in China, offering Parallel Twin Screw Barrel PVC Granule Extrusion 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 Parallel twin screw and barrel Parallel Twin Screw Barrel PVC Granule Extrusion Screw Barrel

Parallel Twin Screw Barrel PVC Granule Extrusion Screw Barrel

FOB Price: US $100 / Piece
Min. Order: 1 Set
Min. Order FOB Price
1 Set US $100/ Piece
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Production Capacity: 100 Sets/ Month
Transport Package: Slushing Oil Coated& Film Wrapped in Wooden Case
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: Parallel twin screw barrel
  • Plastic Processed: PVC
  • Automation: Automatic
  • Size: Customize
  • Nitrided Layer Depth: 0.5-0.8mm
  • Trademark: ZHONGYANG
  • Origin: China
  • Type: Sheet Extruder
  • Screw: Twin-Screw
  • Computerized: Computerized
  • Material: Nitriding Steel
  • Nitrided Hardness: HRC56-58
  • Specification: ISO 9001: 2008 approved
  • HS Code: 84779000
Product Description
Twin Parallel Twin Screw and Barrel, bimetallic screw barrel for Recycled Plastic, plastic machinery screw barrel, PVC granule extrusion screw barrel
Specification:
Diameter: Φ 45mm-Φ 200mm
L/D ratio: 16-35
The compression ratio of screws can be designed according to different products and ingredients

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
Focus on quality and service.
Experienced manufacturer, we will be the best choice.
Parallel twin screw barrel
Diameter 25,50,65,80,90,105,125,
130,150,180,200,250,300
(form25mm to 300mm)
 
Designing
 
Screw structure and compression
ratio can be designed according
to different products  &different mixtrues.
 Standard Specifications ISO9001,
GBT9001-2000
SO9001-2000
IAF,BOS,CNAS
Advantages 1.Long time Nitriding Technology 
2.Anti-corrosion and Wear-resisting Duplex Metal Spraying Technoloy3. we uses special alloy powders being sprayed and welded on the screw's ridge,and uses different alloy and welding methods for the screw of different functions.
Materials 38CrMoAlA 
(JIS SACM645)
SKD61 .etc
Application  PS,HIPS,ABS,SAN,EPN/LDPE,HDPE,UHMPE,
EVA,PP,PVC,PMMA,POM,PAST,PET,PBT
Nitride Depth 0.4mm-0.7mm 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  
Nitride Hardness 950-1050HV Packing Wrapped up by film in wooden
Nitride Brittleness ≤Grade One Payment
 Term
T/T , L/C ,Western Union
Surface Roughness Ra0.4um Delivery
 Term
20-30 working days
Screw Straightness 0.015mm Port 
Departure
Shanghai/Ningbo
Alloy Hardness HRC55-62 Min. Order 1 set
Alloy Depth 1.5mm-3.5mm Warranty period :2-4years(Depends on the plastic raw materials)Bimetallic: much longer lifetime.
Nitriding time Over 180 hours
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