Segment Barrel
Product Description
Product Detail
segment barrel
Segment barrel was introduced to our production many years ago.
Nitrided or bimetallic with carbide liner, EJS can make it.
E.J.S uses high quality extruder screw elements 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 segment barrel
¢12~¢350
Popular Materials used for segment barrel
38CrMoAlA(1.8509)
Steel 45
W6Mo5Cr4V2
40CrNiMoA
40Cr
HYM4
Surface Treatment of segment barrel
Full body nitrided
Full piece bimetallic carbide liner
2-piece bimetallic carbide liners
segment barrel working on these fields:
1.For corrosive and wear-quick process in plastics、polyester fiber and chemical industry.
2.For high viscosity plastics melt material of ABS, PC, PP, PS, A-PET etc.
3.For high denier melt material of synthetic textured yarn and polyester fiber.
When ordering a segment barrel, please be clear WHERE the barrel segment will be sitting in, front, middle or the tail area, because their connections are different.
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
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Bimetallic Barrels |
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Alloy Type |
EJS01 Alloy |
EJS02 Alloy |
EJS03 Alloy |
EJS04 Alloy |
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Alloy Components |
Fe+Ni+Cr+B |
Ni+Cr+Co+B |
Ni+Cr+Co+V+B |
Ni+Wc+Cr+B |
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Wearing Resistance |
★★★ |
★★ |
★★★ |
★★★★ |
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Corrosion Resistance |
★★ |
★★★ |
★★★ |
★★★ |
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Alloy Thickness |
2~3mm |
1.5~2mm |
1.5~2mm |
1.5~2mm |
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Hardness |
HRC 58-65 |
HRC 50-58 |
HRC 55-60 |
HRC 55-65 |
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Temperature Range |
≤400 |
≤450 |
≤450 |
≤600 |
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Coefficient Thermal |
RT~250℃ |
11.0x10-6 |
11.0x10-6 |
11.5x10-6 |
11.0x10-6 |
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Expansion(/℃) |
RT~400℃ |
11.4x10-6 |
11.4x10-6 |
12.4x10-6 |
12x10-6 |
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Range of Workable Length |
700mm~3000mm/piece |
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Base Steel Vastly Used |
40Cr: 42CrMo |
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Mark in the list: ★★★★ Excellent; ★★★ Very Good; ★★Good |
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Bimetallic Screws |
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Suitable for |
Single Screw, Twin Parallel Screw, Twin Conical Screw |
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Alloy Type |
Ni60 |
CoImonoy 56 |
CoImonoy 83 |
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Alloy Components |
Ni+Cr+Fe+Si |
Ni+Cr+Si+Fe |
Ni+Wc+Cr+C |
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Anti-Wearing Level |
★★★ |
★★★ |
★★★★ |
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Anti-Corrosion Level |
★★★★ |
★★★★ |
★★★★ |
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Alloy Thickness |
1~1.5mm |
1~1.5mm |
1~1.5mm |
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Hardness |
HRC 56-62 |
HRC 46~61 |
HRC 43-48 |
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Applied Glass Fiber |
Under 10% |
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Range of Workable Length |
Any length needed |
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Base Steel Vastly Used |
38CrMoAI(1.8509), 34CrAINi7(1.8550), 31CrMoV9(1.8519) |
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Mark in the list: ★★★★ Excellent; ★★★ Very Good; ★★Good |
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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.