Product Description

Profile Extrusion Screw Barrel is extrusion of a shaped product that can be a variety of configurations but does not include sheet or film products. Profile extrusion can include solid forms as well as hollow forms. Products ranging from tubing to window frames to vehicle door seals are manufactured this way and considered profile extrusion.

Product Detail

profile extrusion screw barrel

Profile extrusion is extrusion of a shaped product that can be a variety of configurations but does not include sheet or film products. Profile extrusion can include solid forms as well as hollow forms. Products ranging from tubing to window frames to vehicle door seals are manufactured this way and considered profile extrusion.


Profile extrusion screw barrel are used on profile extruders, for both single-screw profile extruder and twin-screw profile extruder.


EJS is a professional manufacturer of Extrusion Screw Barrel, Vented Screw Barrel for years, with customers of OEM machine builders as well as end users.



Bore diameter available for profile extrusion screw barrel

Single screw barrel for tube extrusion screw barrel: ¢25 ~ ¢ 250

Twin screw barrel for tube extrusion screw barrel: ¢25 ~ ¢ 130


Popular Materials used for profile extrusion screw barrel

38CrMoAlA (DIN1.8509)

34CrAlNi7 (DIN1.8550)

31CrMoV9 (DIN1.8519)

40Cr (AISI 4340)

42CrMo ( AISI4140)

D2 (DIN 1.2379)

SKD61

SKD11

Hastelloy 276

Inconel 625


Surface Treatment of profile extrusion screw barrel

Full body nitrided

Ni60 hardfacing bimetallic

Colmonoy #56

Colmonoy 83

Ceramic coating


Application of profile extrusion screw barrel

● Vinyl siding

● Window profiles

● Fencing

● Agricultural and drainage tubing

● Automotive body side moldings and bumper strips

● Electrical conduit and cable protectors

● Moldings and trims for both interior and exterior finishings

● Gutters and downspouts

● Vertical blinds, curtain tracks, shutter slats, window treatment components

● Refrigerator seals

● Trims

● Zip strips

● Medical tubing

● Drinking straws

● Dip tubes


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.






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