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Extrusion Screw Barrel
  • Extrusion Screw BarrelExtrusion Screw Barrel
  • Extrusion Screw BarrelExtrusion Screw Barrel
  • Extrusion Screw BarrelExtrusion Screw Barrel
  • Extrusion Screw BarrelExtrusion Screw Barrel
  • Extrusion Screw BarrelExtrusion Screw Barrel
  • Extrusion Screw BarrelExtrusion Screw Barrel
  • Extrusion Screw BarrelExtrusion Screw Barrel
  • Extrusion Screw BarrelExtrusion Screw Barrel
  • Extrusion Screw BarrelExtrusion Screw Barrel
  • Extrusion Screw BarrelExtrusion Screw Barrel
  • Extrusion Screw BarrelExtrusion Screw Barrel
  • Extrusion Screw BarrelExtrusion Screw Barrel

Extrusion Screw Barrel

EJS factory was born in 1992 from extrusion screw barrel, it’s twin conical screw barrel to be more exact. In all these years, our factory is growing to be a main manufacturer for extrusion screw barrel in this field. In 2020, we have a turnover about USD38M thanks to customers nationally and internationally.

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Product Description

Extrusion screw barrel


Our personnel are generally in the spirit of "Emphasize details, Pursue excellence", and together with “Keep communicating, Keep focusing, Keep cooperating, Keep Improving”, we do out best job to earn and keep every single customer's trust on us for Top Suppliers China Extrusion Screw Barrel. Our company is quickly growing in size and name because of our focused dedication to superior quality manufacturing as well as consistent great customers service.
Our company is looking for agents sincerely. What are you waiting for? Come and join us. The sooner, the better!



EJS factory was born in 1992 from extrusion screw barrel, it’s twin conical screw barrel to be more exact. In all these years, our factory is growing to be a main manufacturer for extrusion screw barrel in this field. In 2020, we have a turnover about USD38M thanks to customers nationally and internationally.


E.J.S  uses high quality 1.8550 material, 31crmov9 to produce screws and barrels for customers globally to ensure the quality of screws and barrels, because raw material is the core and footstone.


Bore diameter available for Extrusion screw barrel

¢12~¢500


Popular Materials used for Extrusion screw barrel

38CrMoAlA(1.8509)

34CrAlNi7(1.8550)

31CrMoV9(1.8519)

40Cr(4340)

42CrMo(4140)

SS304

SS316

D2(1.2379)

SKD61


Surface Treatment of Extrusion screw barrel

Nitrided

Bimetallic alloy coated

Hardened

Chrome-plating


Application of Extrusion screw barrel

Panel extrusion

Profile extrusion

Sheet extrusion

Pipe extrusion

Board extrusion

Compound extrusion

Blow moulding extrusion


Inspection of Extrusion screw barrel

At EJS, quality is not only quality parts, it also means top quality steel for extrusion screw barrel production, quality packing boxes, moving of extrusion screw barrel from one step to next, inspection at every process, identification number stamping, local transportation from factory to ports, good communication between YOU and EJS etc, in a word it’s about a PACKAGE, it’s about TEAMWORK, it’s about our MIND.



What’s the difference between extrusion screw barrel and injection screw barrel?

Physically speaking injection screw always has screw tip, non-return valve and check ring, injection barrel always has end cap and nozzle BUT NO FLANGE.

Extrusion barrel has flange.

As a manufacturer, factories doing injection screw barrel usually has bigger volume per item; while extrusion screw barrel is almost 100% customized from machine to machine. This is more challenging technically speaking.


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.




Hot Tags: Extrusion Screw Barrel, Customized, China, Zhoushan, Suppliers, Manufacturers, Factory, In Stock

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