Screw Elements and Barrel Section for Parallel Twin Screw Extrusion

Descriptions

Twin screw barrel is gradually adopted by many manufacturers because of its high efficiency. Compared with single screw barrel, twin screw barrel has higher requirements for machining clearance. Our company has a professional team to help users solve design problems, and can also process according to the samples or drawings provided by customers.

injection screw barrel and bimetallic injection screw and barrel by materials 38CrMoAlA or 42CrMo and so on,for many type of injection mould machines,such as HAITIAN,CHEN HSONG,JSW,HAITAI,BRCHO,and so on.

1. Diameter of screw: D12-D300mm

2. L/D ratio of screw: 10 - 26

Grade available:

1. Standard grade: 38CrMoAlA + nitriding 96 hours

2. Bimetallic grade: 38CrMoAlA + bimetallic alloy

3. TC-A grade: Tungsten carbide 35%

4. TC-B grade: Tungsten carbide 25%

5. TC-C grade: Tungsten carbide 15%

Application:

Rubber,various high glass fiber, mineral fiber and PPA,PPS, PA66, LCP,VO fire protection, ferrous power, magnetic powder and etc.

Treatment:
Heat-treatment
Nitriding treatment
Electroplate hard-chrome
High-frequency quenching
Spraying corrosion wear-resisting dual metal layers
Vacuum quenching

Bloom supplies cylinder barrel suitable for the following extruder products lines :
-APV -KOBE -OMC
-Buhler -KraussMaffei -Theysohn
-Buss -Berstorff- -Toshiba
-Clextral -Labtech -USEON
-Lantai - others
-JSW -Leistritz
-Keya -Maris

Types of Barrels
Standard for classification: Design geometry Standard for classification: With inner or not
* Feeding barrel * Solid barrel
* Closed barrel * Barrels with inners
* Vent barrel
* Combi barrel
* Extended degassing barrel
* Combi barrel with backward venting

We offer a broader choice of materials:
Solid barrels
*Nitrided steel barrels *Tooling steel barrels *Bimetallic

Barrel with installed inner
* made of PM-HIP solid *WR13
By working closely with customers in choosing optional materials,we can minimize wear and tear and associated costs.