Gold Member Since 2009
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SKY WIN Technology Co., Ltd.

Plastic Screw Barrel, Screw and Barrel, Screw Barrel manufacturer / supplier in China, offering Conical Twin Screw and Barrel for Reducer Gearbox, Plastic Pulverizer Machine, WPC/PVC Wall Panel Extrusion Line and so on.

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Supplier Homepage Product Plastic Extruder Parts Conical Twin Screw and Barrel for Reducer Gearbox

Conical Twin Screw and Barrel for Reducer Gearbox

FOB Price: Get Latest Price
Min. Order: 1 set
Payment Terms: L/C, T/T

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Basic Info
  • Technics: Bimetal
  • Base Material: 38crmoala
  • Screw Diameter: 50-500mm
  • Maximun Screw Length: 10000mm
  • Material: 38grmoala 42grmo
  • Extrusion: Parallel Twin Screw Barrel
  • Ratio of Length to Diameter: 8-20
  • Bimetallic Alloy: Ni-Based
Product Description


1.Screw and barrel for Injection moulding machine

1) Material:38CrMoAlA,42CrMo,34CrAlNi7,SKD61,SACM645

2) Diameter of Screw: 15-250mm 
3) Shot Weight: 15-50000g 
4) Mould Clamping Force: 250-32000KN

Screw can be mated with different heads, Barrel can be mated with different nozzles. The compression ratio of the screw can be designed according to different products and mixtures.


2.Single screw and barrel for extruder machine

1) Material:38CrMoAlA,42CrMo,34CrAlNi7,SKD61,SACM645

2) Screw diameter: 15 mm -360 mm 

3) Screw length: 300 mm to 8000 mm screw length

4) Length to diameter ratio: L/D: 15-45

5) Type of screw: Common type, Gradual type,Sudden type,Barrier type, Pinned type,Exhaustive type,Separate type,Granulation type 


3. Parallel twin screw and barrel

1) Material:38CrMoAlA,42CrMo,34CrAlNi7,SKD61,SACM645

2) Screw diameter: 20mmX2-200mmX2

3) Length to diameter ratio: L/D = 18 - 25


4.Conical twin screw and barrel

1) Material:38CrMoAlA,42CrMo,34CrAlNi7,SKD61,SACM645

2) Screw diameter: 35/75mm-92/188mm

3) Screw according to different formulas and different products before choosing different compression ratio


5.Rubber screw and barrel

1) Pinned screw : 75mm diameter -200mm

2) Cold /hot screw: 30mm diameter-250mm


6.Bimetallic screw and barrel

1) Material:38CrMoAlA

2) Screw diameter: 15mm-250mm

3) Screw length:300mm-8000mm 

4) Barrel diameter:40mm-400mm 

5) Length to diameter ratio: L/D: 15-45

6) Centrifugal casting bimetallic barrel


Technical Parameter

Technical Parameter
Depth of nitration0.5-0.8mm
Hardness of nitration950-1020HV
Straight of screw0.015MM
Fragility of nitrationLess than grade 1
Roughness of surfaceRa 0.4um
Depth of alloy layer2-3mm
Hardness of alloyHRC58-62
Hardness after hardening and temperingHB260-290
Hard chrome plating thickness0.03-0.08mm
Hardness of hard chrome plating≥950HV


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