Barrel and Screw

Barrel and screw manufacturer EJS has been producing barrel and screw since 1990 for customers nationally and internationally with customers in extrusion, injection and blow moulding machines in plastics, rubber and food industries for both end-users and OEMs.
The screw is the heart of the machine, the injection moulding machine and the extruder, because it determines its plasticizing ability.

Send Inquiry

Product Description

Barrel and Screw:

￠45/2-￠250/2， 67/22， 68/25，114/32， 92/28， 92/32， 114/32， 90/16， 90/22， CM80，40KK, 75/32, 81/17, CM58

Conical twin screw barrel:

24/52, 35/xx, 45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132, 68/143, 68/147, 70/135, 70/140, 75/150, 80/143, 80/156, 92/188, 105/216, 110/220

Extruder single screw barrel:

Ø15mm~Ø500mm

Rubber screw barrel

1.Cold feed rubber screw and barrel Diameter:￠25-￠300mm
2.Hot feed rubber screw and barrel Diameter:￠60-￠500mm
3.PIN style rubber screw and barrel Diameter:￠60-￠250mm

Injection molding Barrel and Screw

Amount Of Injection(G)	Screw Diameter X Length(mm)	Barrel Diameter X Length(mm)	Amount of Injection(G)	Screw Diameter X Length(mm)	Barrel Outer Diameter(mm)
30-90	￠30x900	￠85x860	800-1250	￠75x1825	￠170x1725
60-125	￠35x910	￠85x860	1000-1500	￠80x2000	￠180x1805
100-150	￠38x935	￠95x900	1250-2000	￠85x2300	￠190x1900
125-160	￠40x980	￠95x910	2000-3000	￠90x2700	￠210x2000
125-300	￠42x1030	￠105x1880	2500-5000	￠100x2600	￠230x2405
250-400	￠45x1210	￠115x1165	3000-6000	￠110x2600	￠256x2590
300-500	￠50x1300	￠125x1260	4000-10000	￠120x2800	￠256x2800
450-600	￠55x1335	￠130x1320	6000-8000	￠130x3010	￠256x2970
500-700	￠56x1350	￠130x1350	8000-10000	￠145x3010	￠256x3200
500-700	￠60x1380	￠140x1350	10000-15000	￠160x3500	￠270x3200
650-800	￠65x1415	￠150x1420	13000-25000	￠170x3415	￠317x3380
700-1000	￠70x1790	￠160x1685

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.