Conical twin screw barrel specification

Φ22/45

Φ35/75

Φ40/80

Φ45/90

Φ45/97

Φ50/105

Φ51/105

Φ55/110

Φ60/125

Φ65/120

Φ65/132

Φ70/143

Φ70/150

Φ80/143

Φ80/156

Φ90/188

Φ92/188

Φ95/190

Φ105/191

Φ100/200

1. The above is standard sizes, if your screw barrel size didn’t mentioned above, please contact me & we will give you best solution for it!

2. We provide Cincinnati, Battenfeld, Krauss Maffei, Amut, BAUSANO, Weber designing.

Technical Information

base Materials

1.       38CrMoVAIA (JIS SACM645)

2.       42CrMo (AISI 4140)

3.       4Cr5MoSi V1 (JIS SKD-61)

4.       DC43 (JIS G4404)

5.       Cr12MoV (SKD11)

6.       9Cr18MoV (Stainless Steel)

Bimetallic Alloy Materials

1.       Ni-based alloy/Deloro alloy

2.       Fe-based alloy

3.       Co-based alloy

4.       NiCo-based alloy

5.       Tungsten carbide/Wolfram carbide

Processing Technics

1.       Heat treatment

2.       High-frequency quenching

3.       Nitriding treatment

4.       Bimetallic alloy welding

5.       Bimetallic alloy centrifugal casting

6.       Hard- chrome electroplating

Technical Parameters

1.       Nitriding layer depth: 0.5-0.8mm

2.       Nitriding Hardness: 900-1000HV (HRC 55-65)

3.       Nitrided brittleness: Less than grade 1

4.       Surface roughness: Ra0.4

5.       Linearity of screw: 0.015mm

6.       Bimetallic layer depth: ≥3mm

7.       Bimetallic layer hardness: HRC 55-70

8.       Hard-chrome plating hardness after nitriding: ≥950HV

9.       Chrome-plating layer depth: 0.03-0.1mm