81mm x 17D bimetallic Reifenhauser extruder barrels and screws

Specifications

1. Base materail 38CrMoAlA, 40Cr
2. Nitrided or bimetallic treatment;
3. 1 year guarantee for pure plastics

Parallel Twin Screw  

 

Both nitrided and bimetallic version are available. Nickel 60 alloy powder made by Stellite compnay will be used for bimetallic conical twin screw. Below is a table of technical data for these two versions:    

 

 

Parallel Twin Barrel

 

Bimetallic spray coating on the inner wall of conical twin barrel. Below are four types of alloys to select the optimum protection of your barrels:

 

Alloy Type		EJS01 Alloy	EJS02 Alloy	EJS03 Alloy	EJS04 Alloy
Wear resistance		Very good	Good	Very good	Excellent
Corrosion resistance		Good	Very good	Very good	Very good
Alloy components		Fe+Ni+Cr+B	Ni+Cr+Co+B	Ni+Cr+Co+V+B	Ni+Cr+Wc+Co+B
Hardness (HRC)		58~64	50~58	55~60	56~62
Temperature area (°C)		less than 400	less 450	less than 450	less than 600
Coefficient thermal	RT-250°C	11.0 x 10-6	11.0 x 10-6	11.5 x 10-6	11 x 10-6
Expansion (/°C)	RT-400°C	11.4 x 10-6	11.4 x 10-6	12.4 x 10-6	12 x 10-6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E.J.S Workshop

 

Quality Inspection

We take only first-class steel and check every production procedure to ensure every dimension is produced precisely. A final complete inspection will be executed  before dispatch.

Packaging

We use strong plywood or wooden case for all our products