single screw barrel manufacturer from China manufacturer - Zhoushan Vanscrew Machinery Co.,Ltd.

Price:	500.0~1000.0 USD
Payment Terms:	T/T,L/C
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: SC-90

Production Capacity: 300sets/month

Delivery Date: 25days

Material: 38CrMoALA

Hardness: ≥900Hv

Means of Transport: Ocean

Packing: woodern case

Brand Name: Vanscrew

Heat-treatment: Nitrided

Application: extruder

Alloy-Steel of High-quality
1)38CrMoALA(JIS SACM645)
2)42CrMo(JIS SCM440)
3)SKD61

Single screw barrel
The material of screw: manufactured with high-quality nitro alloy steel, applying the method of hardening and tempering and nitriding, thus it enjoys the characteristics of long working life, wear resistance, and anti corrosion. Besides, the technique of hard alloy spraying or chrome plating can be used on the working surface of screw, which will make it have better using effectiveness.

Materil: 38CrMoALA

Heat-treatment:

1.Nitriding treatment

2.Electroplated hard-chrome finish

3.High-frequency quenching

4.Spray coating Bimetallic-alloy

5.Vacuum quenching

Technical specification

Hardness After Hardening &Tempering:	HB240 -280
Nitrided Hardness:	Hv850-1000
Nitrided Depth:	0.45-0.7mm
Nitrided Brittleness:	≤Grade 2
Surface Roughness:	Ra0.4
Screw straightness:	0.015mm
Surface Chromate-plating's Hardness After Nitrided:	≥900Hv