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extruder rubber screw for pvc wire extrusion machine

Basic Info

Model No.: rubber screw

Product Description

  1.About E.J.S.   E.J.S industry Co. LTD is specialized in producing screws and barrels for extruders and injection molding machines. Our factory, is located in Jin Tang, Zhoushan, has been in the field since 1992. The sales department moved to downtown Ningbo and became a Golden Supplier on Alibaba in 2012. With our high quality products and sales service, we have satisfied our clients from Europe, South America, North America,  and South Asia etc.  2.  Product Details    Physical Characteristics of Bimetallic Screw:

Type

Model

Hardness

(HRC)

Wear resistant

Corrosion resistant

Thickness

Application

Glass Fiber

PTA weld

J1 38CrMoAlA

Ni-base alloy

45-58

Excellent

Special excellent

1.5~3mm

Under 10%

J2 SKD61

Ni-base alloy

45-58

Special excellent

Excellent

1.5~3mm

Under 15%

Nitriding

J3 Nitrided

HV more than 800

Good

Good

0.25mm

/

  Types of Bimetallic Screw   For barrels, E.J.S is offering 4 kinds of bimetallic alloys against all types of wear:

Alloy Type

EJS01 Alloy

EJS02 Alloy

EJS03 Alloy

EJS04 Alloy

Wear resistance

Very good

Good

Very good

Excellent

Corrosion resistance

Good

Very good

Very good

Very good

Alloy components

Fe+Ni+Cr+B

Ni+Cr+Co+B

Ni+Cr+Co+V+B

Ni+Cr+Wc+Co+B

Hardness (HRC)

58~64

50~58

55~60

56~62

Temperature area (°C)

less than 400

less 450

less than 450

less than 600

Coefficient thermal

RT-250°C

11.0 x 10-6  

11.0 x 10-6

11.5 x 10-6

11 x 10-6

Expansion (/°C)

RT-400°C

11.4 x 10-6

11.4 x 10-6

12.4 x 10-6

12 x 10-6

                               3.  E.J.S Workshop   4. PTA Welding Machine  New PTA welding mahince was brought in early 2015.      5.  Quality Inspection We take only first-class steel and check every production procedure to ensure every dimension is produced precisely. A final complete inspection will be executed  before dispatch.   6. Packaging We use strong plywood or wooden case for all our products       7. Our Advantages   1) Quality always comes first. Our experienced workers pay attention to every tiny procedure during the production and inspection, to ensure the precision of every dimension. 

2) Service makes us outstanding. Our sales people are trained on the products every day. They are always ready to answer your questions and offer the best solutions in fluent English at any time.   3)  Provide an easier working way. With 6 years export experience, we E.J.S offer before-sales, prouction update, after-sales one stop service, which makes an easier way to work with us. We welcome you to visit our factory at any time!     8. Our market Through years of developing, we satisfy our customer all over the world with mainly market in Europe, South America, Asia, Middle East, ect. We also design the drawings per customer’s detailed request.                      

Contact us if you need more details on Rubber Screw. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Rubber Screw、Rubber Screw. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Rubber Screw Barrel

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