Product Details

Specifications

screw & barrel in high quality steel, CNC computer control machine, bimetallic /nitriding treatment made by ourself.

Topic: PVC extruder screw design and cylinder/Conical twin screw barrel for extrusion line

Product Description

Jinsheng kinds of screw and barrel type:

Specifications

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 nitration	0.5-0.8mm
Hardness of nitration	950-1020HV
Straight of screw	0.015MM
Fragility of nitration	Less than grade 1
Roughness of surface	Ra 0.4um
Depth of alloy layer	2-3mm
Hardness of alloy	HRC58-62
Hardness after hardening and tempering	HB260-290
Hard chrome plating thickness	0.03-0.08mm
Hardness of hard chrome plating	≥950HV

Product Application

Picture for all model screw

Jinsheng factory overview and work flow

Working flow: blanking--rough mechining--quenching&tempering--semi finishingmachining --finish machining--nitriding or bimetallic processed--detecting--finished product---packing & shippping

Other information:

1)Packing way:inside damp-proof,outside wooden carton

2)Delivery time:20 days after confirmed

3)Guarantee time:one year under normal using

4)Payment:30% deposite in advance,balance will be paid after confirmed as buyer (such as picture confirmed ) and before shipment