Barrel with bimetallic liner zhoushan China.

Specifications

1. base material 38CrMoAlA , 40Cr
2. nitrided or bimetallic treatment;
3. 1 year's guarantee.
4. durable and high precise

1.  Product Details 

 

Physical Characteristics of Bimetallic Screw:

Type	Model	Hardness (HRC)	Wear resistant	Corrosion resistant	Thickness	Application Glass Fiber
PTA weld	J1 38CrMoAlA Ni-base alloy	45-58	Excellent	Special excellent	1.5~3mm	Under 10%
	J2 SKD61 Ni-base alloy	45-58	Special excellent	Excellent	1.5~3mm	Under 15%
Nitriding	J3 Nitrided	HV more than 800	Good	Good	0.25mm	/

 

Types of Bimetallic Screw

 

For barrels, E.J.S is offering 4 kinds of bimetallic alloys against all types of wear:

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 2.  E.J.S Workshop

 

3.  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.

4. Packaging

We use strong plywood or wooden case for all our products

 

5. About E.J.S

 

E.J.S Industry Co, Limited, located in Ningbo City, is specialized in screw barrel products.

 

Through years of developing, a wide range of products are available now, which includes the injection molding screw barrel, extruder screw barrel(single screw barrel and twin screw barrel), rubber screw barrel, bimetallic screw barrel etc. We own the international advanced equipments and facilities of heat treatment, alloy spray welding and inspection. We market our products mainly in Europe, North & South America, Asia, Middle East, ect. We also do all kinds of ODM and OEM per customer’s requests.

 

6. Our Advantages

 

1) Quality always comes first. Our experienced workers pay attention to every tiny procedure during the production and inspection, to ensure the precision of every dimension. 

2) Service makes us outstanding. Our sales people are trained on the products every day. They are always ready to answer your questions and offer the best solutions in fluent English at any time.

 

3)  Provide an easier working way. With 6 years export experience, we E.J.S offer before-sales, prouction update, after-sales one stop service, which makes an easier way to work with us. We welcome you to visit our factory at any time!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7. Our market

Through years of developing, we satisfy our customer all over the world with mainly market in Europe, South America, Asia, Middle East, ect. We also design the drawings per customer’s detailed request.