barrel and screw for rubber machines

barrel and screw for rubber, 1.Extruder screw and barrel, 2.High Quliaty Base Material - details see: https://www.machineto.com/barrel-and-screw-for-rubber-machines-10334437

Place of Origin:Zhejiang China (Mainland)	Brand Name:LiJing	Model Number:LJ-	Steel Material:Alloy-steel of High-Quality
Screw Diameter:15mm-300mm	Screw Length:L/D ratio 15 - 46	Nitriding treatment:Electroplated hard chromium coating	Deepness of Nitriding Layer:0.7 mm -0.9 mm
Hardness of Nitriding:HV900 - HV1,000

barrel and screw for rubber

We can supply various types of screw barrels according to customer's requirement.

Single Screw and Barrel Ranges:

Screw Diameter	15mm-300mm
Screw Length	L/D ratio 15 - 46

Material

1 38CrMoAIA(JIS SACM645)

2 42CrMoV(AISI 4140)

3 Cr12MoV(JIS SKD-11)

High quality alloy steel

Heat treatment

Nitriding treatment	Electroplated hard chromium coating
Spray coating anticorrosion	High-frequency quenching

Technical Parameter

Deepness of Nitriding Layer	0.7 mm -0.9 mm
Hardness of Nitriding	HV900 - HV1,000
Nitriding Brittleness	≤Grade 1
Chromate plating	Thickness 0.05 mm - 0.10 mm, hardness HV950
Special treatment	Carbide coating on screw flight and bimetallic barrel
Screw straight tolerance	0.015 mm/m
Surface roughness	Ra 0.4μm