Conical twin twin screw and barrel

Conical twin screw and barrel
Specification:
45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132, 68/143, 70/135, 70/140, 75/150, 80/143, 80/156, 92/188

Above are our standard specification, we also can customize for you

Screw structure and compression ratio can be designed according to different products and raw material.

Base Materials:
1)38CrMoAlA(JIS SACM 645)
2)42CrMo(AISI 4140)
3)Cr12MoV(JIS SKD-11)
4)4Cr5MoSiV1(JIS SKD-61)
5)9Cr18MoV
DC53 (JIS G4404)

Bimetallic Alloy Materials:
1)Fe-based alloy
2)Ni-based alloy
3)Co-based alloy
4)NiCo-based alloy
5)Wolfram carbide

Bimetallic alloy level:
Alloy powder including 40% Wolfram Carbon
Alloy powder including 25% Wolfram Carbon
Alloy powder including 9.5% Wolfram Carbon

Processing Technology:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding

Technical Parameter:
Nitrided layer depth:0.50-0.80mm
Nitrided hardness: 950-1100HV
Nitrided brittleness: Less than 2 level
Surface roughness: Ra 0.4μm
Linearity of screw: 0.015mm/m
Hard-chrome plating hardness after nitriding: ≥950HV
Chrome-plating layer depth: 0.025~0.10mm
Bimetallic layer depth: 3-5 mm

Twin screw and barrel made: CINCINNATI, BATTENFELD, KRUSSMAFFEI, BAUSANO, AMUT model spares.

We can manufacture all types of screws and barrels according to clients’ requirement.