Zhoushan injection screw barrel

This 2 sets of Demag screw and barrel are both bimetallic,because of our excellent quality,this customer place this order 3 monthes later.
Screw size: ø45*1275mm, Barrel size: ø120*1275mm
Compare with the first order, this two sets customer changed the hopper hole.

The follwing picture is barrel of the first order.

Now: the barrel is:


Products details:

Advandages of bimetallic

1. Corrosion resisting,
Some plastic materials such as Fluorine,PVC,ABS or add additive GF,etc,when temperature rise higher,will send out corrosive gas, which will damage your screw and barrel.Common nitrided screw barrel can not service long time,But bimetallic screw barrel is different,the bimetallic layer could resist the corrosion,make the screw barrel working life longer.We guarantee you the working life is one year,but our customers always use several years.

2.Wear resisting
Some times,we also need to add some materials easy to wear,such as Caco3,or recycled materials,these materials are called bad materials.Common nitrided screw barrel also could not serve you longer. Maybe half year, you need to change one set. In this situation,if you use our bimetallic screw barrel,we can guarantee one year. But our customers always use several years.

We-HUACHEN bimetalilc standard:
1. Standard grade: 38CrMoAlA + nitriding 96 hours
2. Bimetallic grade: 38CrMoAlA + bimetallic alloy
3. HC-A grade: Tungsten carbide 40%
4. HC-B grade: Tungsten carbide 25%
5. HC-C grade: Tungsten carbide 15%

We-HUACHEN Bimtallilc Product Show:
Second hand extruder machine bimetallic screw barrel

Two types of bimetallic screw:
The bimetallic also could divide two types, like the above picture show:
Type 1:Sparying the bimetallic on the screw flight,this is very common in the market. If your plastic material is not very very bad,we suggest you choose this type, because of its economy.
Type 2:Coating the bimetallic on the whole screw,this is new technical these years. The advantage:Working life more longer than type 1,the disadvantage: Price is also very higher than type 1.

Techincal Parameter:

Technical Parameter:
single screw barrel Base Materials: 1)38CrMoAlA(SACM 645) 2)42CrMo(AISI 4140) 3)Cr12MoV(SKD11) 4)4Cr5MoSiV1(SKD61) 5)9Cr18MoV 6)40Cr	Processing Technology: Heat treatment High-frequency quenching Nitriding treatment Hard-chrome electroplating Bimetallic alloy welding
Bimetallic Alloy Materials: 1)Fe-based alloy 2)Ni-based alloy 3)Co-based alloy 4)Tungsten carbide	Bimetallic alloy level Alloy powder including 40% Wolfram Carbon Alloy powder including 25% Wolfram Carbon Alloy powder including 9.5% Wolfram Carbon
Technical Parameter: Nitrided layer depth:0.50-0.80mm Nitrided hardness: 950-1100HV Nitrided brittleness: Less than 2 level Surface roughness: Ra 0.4 Linearity of screw: 0.015mm Hard-chrome plating hardness after nitriding: ≥950HV Chrome-plating layer depth: 0.025~0.10mm Bimetallic layer depth: 3-5 mm Bimetallic hardness: HRC60-70

Various kinds of screw tips,non-return valve,check rings. We also accept small order like several screw tips or others.

About Huachen

Factory Show:

Machines&processing show:

Nitrogen oven & Bimetallic Oven show:

We also could provide you bimetallic screw and barrel,the following picture is our bimetallic barrel workshop.
Centrifuge casting process bimetallic barrel
Battenfeld injection screw barrel of bimetallic
Our advantages:
- Screw and barrel for various models
- Professional engineers design for you
- Thousands of drafts can supply for you
- Professional Tech. and R&D team
- Insist on developing screws and barrels for more injection molding machine and extruder machine models
-Our screw barrel can ensure the well performance and low energy
consumption of extruder and Injection molding machine. We insist on the principle of quality first, honest to customers

And besides the injection molding machine screw and barrel, we also process extruder screw and barrel, conical twin screw and barrel, parallel twin screw and barrel,rubber machine screw and barrel,planet screw and barrel.

We can provide thousands of drawings
We can design for you according to your requirements
We can process according to your drawings.

Please contact us,if you have any questions. Mail,phone,skype all are OK.
My skype:lillianyao0421