Bimetallic Screw Barrel

Product Description

Bimetallic screw barrel

We now have many fantastic staff with rich manufacturing experiences for factory best selling China Blow Film Extrusion Bimetallic Screw Barrel. Our concept is make screw barrel business Easier with Joys and Success for each customer.

Factory best selling China Plastic Machine, Screw and Barrel, Customized orders are acceptable. We've been looking forward to establish the good and successful business cooperation with the customers from all over the world.

EJS has been producing bimetallic screw barrels for over 20 years, especially these years more and more customers are choosing bimetallic screw barrel for a longer life time.Coming together is a begnning, talking together is a progress, we hope to talk with our customers face to face, the ideal place is our factory, which you could better understand our factory and the people you will work with. Also you could meet us at Screw and Barrel Manufacturer, do come to talk together when you have a plan to be there.

Bore diameter available for bimetallic screw barrel

¢16~¢500

Popular Materials used for bimetallic screw barrel

38CrMoAlA(1.8509)

34CrAlNi7(1.8550)

31CrMoV9(1.8519)

40Cr(4340)

42CrMo(4140)

SKD11

Alloy powder of bimetallic screw barrel

Kennametal Stellite Ni60

Colmonoy 56

Colmonoy 83

EJS01 alloy

EJS04 alloy

Application of bimetallic screw barrel

Single screw barrel

Twin screw barrel

Inspection of bimetallic screw barrel

Bimetallic process is crucial, it’s very important the bimetallic alloy is tightly attached to bimetallic screw barrel, no split, no insane crack.

At EJS, we use centrifugal casing machine to do bimetallic barrel while Kennametal Stellite bimetallic welding machines are used for bimetallic screw.

I don’t know component information of your bimetallic screw barrel, but I do know we buy X800 bimetallic screw barrel from Xaloy, can you do that?

When you tell us the alloy type from another famous company, such as Xaloy, Bernex, EJS is able to identify the equivalent alloy, please do not hesitate to contact your exclusive sales representative for further communication.

About E.J.S.

EJS Screw Barrels is a newly created brand name for Export business with manufacturing experiences since 1992.
A screw barrel manufacturer dedicated on producing customized screw barrel and design extruder screw barrels, injection moulding screw barrels.

Bimetallic Screw Barrels

We started to make bimetallic screw barrel at a very early age, almost the same time as the first bimetallic barrel was born in China. Now we have several types for options depending on different applications

Bimetallic Barrels
Alloy Type		EJS01 Alloy	EJS02 Alloy	EJS03 Alloy	EJS04 Alloy
Alloy Components		Fe+Ni+Cr+B (Fe:65, Ni:14, Cr8, B:3.5)	Ni+Cr+Co+B	Ni+Cr+Co+V+B	Ni+Wc+Cr+B (Ni:50, Wc:15~35,Cr:6~8, B:2.5~3.2)
Wearing Resistance		★★★	★★	★★★	★★★★
Corrosion Resistance		★★	★★★	★★★	★★★
Alloy Thickness		2~3mm	1.5~2mm	1.5~2mm	1.5~2mm
Hardness		HRC 58-65	HRC 50-58	HRC 55-60	HRC 55-65
Temperature Range		≤400	≤450	≤450	≤600
Coefficient Thermal	RT~250℃	11.0x10-6	11.0x10-6	11.5x10-6	11.0x10-6
Expansion(/℃)	RT~400℃	11.4x10-6	11.4x10-6	12.4x10-6	12x10-6
Range of Workable Length		700mm~3000mm/piece
Base Steel Vastly Used		40Cr: 42CrMo
Mark in the list: ★★★★ Excellent; ★★★ Very Good; ★★Good

Bimetallic Screws
Suitable for	Single Screw, Twin Parallel Screw, Twin Conical Screw
Alloy Type	Ni60	CoImonoy 56	CoImonoy 83
Alloy Components	Ni+Cr+Fe+Si (Ni:65, Cr:17, Fe:15, Si:5)	Ni+Cr+Si+Fe (Ni: 68, Cr:18, Si:5, Fe:5)	Ni+Wc+Cr+C (Ni:40, Wc:34, Cr:20, C:2)
Anti-Wearing Level	★★★	★★★	★★★★
Anti-Corrosion Level	★★★★	★★★★	★★★★
Alloy Thickness	1~1.5mm	1~1.5mm	1~1.5mm
Hardness	HRC 56-62	HRC 46~61	HRC 43-48
Applied Glass Fiber	Under 10%
Range of Workable Length	Any length needed
Base Steel Vastly Used	38CrMoAI(1.8509), 34CrAINi7(1.8550), 31CrMoV9(1.8519)
Mark in the list: ★★★★ Excellent; ★★★ Very Good; ★★Good

Quality Inspection

Quality is a very important step during production. For making a quality screw barrel, all tolerances should be fulfilled and all dimensions should be correct and put in records.

We provide inspection report, material certificate for every of our supplied screw barrels.

Packaging

Packaging is the last but very important step before shipping. A strong and smart packing box is also part of our quality. It is not only used to protect the screws barrels well during transportation, also provide an easy way for our customer to unpack.