GREAT POWER CO.,LTD

The Global Supplier of Industrial Gearbox,Gear Speed Reducer and related products.

Conical Twin Screw and Barrel

Product Description:

Technical specification for conical twin screw

Material:High quality 38CrMoAlA

Process:Advanced nitriding & bimetallic process

Hardness After Hardening & Tempering:HB280-320

Nitrided Hardness:HV900-1000

Nitrided Case Depth:0.45-0.8mm

Material:38CrMoAIA,SACM645,AISI4140,SKD61,GHII3

Quenching Hardness:HRC55-62

Nitrided Brittleness:Less than Grade 2

Surface Roughness:Ra 0.4

Screw Straightness:0.015MM

Chromium plating layer hardness after nitriding:HV≥950HV

Chrome plate thickness:0.05-0.10MM

Alloy Depth:2.0-3.0MM

Technical parameter

Screw dia.(mm)	51/105	55/110	65/132	80/156	92/188
Max speed(rpm)	40	38	38	37	36
Main motor(KW)	18.5	22	37	55	90
Output(KG/H)	80-100	100-150	150-250	250-380	380-700

Types of screw：

Gradual type,mutant type,wave type,barrier type,double screen type,shunt type,separation type,exhaust type,pin type,mixed type,double-head type,three-head type,multi head type etc.

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