Parallel twin barrel from China manufacturer - Zhoushan Vanscrew Machinery Co.,Ltd.

Product Detail

Model No.: PT-90

Production Capacity: 300sets/month

Delivery Date: 35days

Hardness After Hardening &Tempering: HB240 -280

Nitrided Depth: 0.45-0.7mm

Surface Roughness: Ra0.4

Means of Transport: Ocean,Land

Packing: wooden case

Brand Name: Vanscrew

Nitrided Hardness: Hv850-1000

Nitrided Brittleness: ≤Grade 2

Screw straightness: 0.015mm

Our parallel twin screw and barrel have high surface area and low shear screw designs that will optimize the melt homogeneity.

Parallel twin screw

Heat-treatment

Nitriding treatment

Electroplated hard-chrome finish

High-frequency quenching

Spray coating Bimetallic-alloy

Vacuum quenching

Parallel twin screw and barrel type

Φ40/2	Φ50/2	Φ65/2	Φ80/2	Φ90/2	Φ105/2
Φ125/2	Φ130/2	Φ150/2	Φ180/2	Φ200/2

Max L/D:1/36

Compressing rate of screw can be designed according to different raw materials and product.

Material

Alloy-Steel of High-quality

1)38CrMoALA(JIS SACM645)

2)42CrMo(JIS SCM440)

3)9Cr18MoV

4)CW6Mo5Cr4V2

Technical data

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
Chromate-plating Depth:	0.05-0.10mm
Bimetallic-alloy Hardness:	HRC56 -65
Alloy Depth:	0.8-2.0mm