counter-rotating twin double conical screw barrel for extruder

1)*8CrMoAlA(JIS SACM**5)

2)Cr*2MOV(JIS SKD**1) 
3)4Cr5MoSiV1(JIS SKD**1)  4)*2CrMo(AISI ***0) 

5)9Cr*8MoV

1)Fe-based alloy 

2)Ni-based alloy/Deloro alloy 
3)Co-based alloy 

4)NiCo-based alloy 
5)Tungsten carbide/Wolfram carbide 

Level A - containing Tungsten of *0%

Level B - containing tungsten of *5%

Level C - containing tungsten of 9.5%

Screw structure and compression                 

ratio can be designed according 

to different products  & different 

clamping force requirement.

1)Longer time Gas Nitriding treatment 

2)special anti-wear & abrasion alloy (bimetallic)

3)tungsten carbide

4)cobalt base alloy

5)stainless steel 

6)Gh**3 nickel based alloy  

Treatment

Nitriding treatment(>**0 Hours)

Depth of Nitrided Layer: 0.**0.8 mm

Hardness of Nitrided Layer: >**0Hv 

Hard Chrome Plating treatment:

Thickness of Hard Chrome Plating Layer: 0.***0.*8mm

Hardness of Hard Chrome Plating Layer: ≥**0HV

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: HRC*5°**5°

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

Screw diameter  :*4mm***0****0mm

L/D = ****0

Surface Roughness :Ra0.4um

Linearity of the screw: ≤0.**5mm

Linear axis limit: ≤0.*2mm

Hardness after Hardening & Tempering: HB******0

Fragility of Nitration:≤Two grade

Means of transport: Ocean,Air,Express

Production time: About *0 days after we receive the deposit and lead time will different according to the order quantity.

**4years(Depends on the plastic raw materials)

Bimetallic: much longer lifetime.

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!