Injection Blow Moulding Screw Barrel

For dozens of year, EJS produces injection blow moulding screw barrel for injection blow mould machine. Injection blow molding is the process whereby the plastic preform is injection molded and the preform travels on the core rod to the blow mold station, where blow air enters through the core rod and lifts the hot preform material off the core rod and forms it by air pressure to the design of the female blow mold.

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Product Description

Injection blow moulding screw barrel

E.J.S is fully dedicated into OEM/ODM Supplier China Injection Blow Moulding Screw Barrel. Our experienced workforce is always standing by for your service. We sincerely welcome you to check us out at our workshops or at the exhibition and email us your inquiries.

OEM/ODM Supplier China Injection Molding Machine, Injection Blow Moulding Screw Barrel, more than 30 years, leading players in injection moulding machines from all over the world take us as their long-term and stable partners. Our loyal customers are worldwide in China, United States, Russia, Britain, Australia, Japan, Korea, USA, UK, Germany, , France, Italy, Poland, South Africa etc.

For dozens of year, EJS produces injection blow moulding screw barrel for injection blow mould machine.

Injection blow molding is the process whereby the plastic preform is injection molded and the preform travels on the core rod to the blow mold station, where blow air enters through the core rod and lifts the hot preform material off the core rod and forms it by air pressure to the design of the female blow mold.

Bore diameter available for Injection blow moulding screw barrel

¢45~¢250

Popular Materials used for Injection blow moulding screw barrel

38CrMoAlA(1.8509)

34CrAlNi7(1.8550)

31CrMoV9(1.8519)

40Cr(4340)

42CrMo(4140)

Surface Treatment of Injection blow moulding screw barrel

Full body nitrided

Stellite bimetallic alloy coated

Colmonoy 56 alloy coated

Colmonoy 83 alloy coated

Application of Injection blow moulding screw barrel

Injection blow moulding is used for the Production of hollow objects in large quantities.

The main applications are bottles, jars and other containers.

The Injection blow moulding process produces bottles of superior visual and dimensional quality compared to extrusion blow moulding.The process is ideal for both narrow and wide-mouthed containers and produces them fully finished with no flash.

How many types are there for blow Moulding?

In general, there are three main types of blow molding:

1) Extrusion blow molding,

2) Injection blow molding,

3) Injection stretch blow molding.

EJS is capable to do Extrusion blow moulding screw barrel, injection blow moulding screw barrel, and stretch blow moulding screw barrel.

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.