Custom Made CNC Lathe Milling Machining OEM Machining Extruder
Barrel And Screw
Main parameters of screw and barrel:
|Material||38 CrMoAlA(JIS SACM645); 42CrMo(JIS SCM440)|
|Hardness of nitrogen treatment||HV900°~1100°|
|Tempering hardeness||HV240 ° ~280°|
|Depth of nitrogen layer:||0.6~0.8mm|
|Nitrided Brittleness||above 1 stage|
|Surface Roughness||Ra0.4 um|
|Hardess of surface chromium-plating after Nitriding||HV≥950HV|
|Chromium plating Depth||0.025-0.085mm|
|Heating-treatment||nitrogen ,electroplated hard -chrome finish,high frequency
Remarks :We can design and manufacture various kinds of screw
barrel according to the customers requirement.
1. Parallel twin screw and barrel has the advantage of lower
rotation speed, smaller shear stress between the small screw
2. Good plasticization, high productivity, small shear force,
stable pressure , less wear and tear and low cost.
3. Parallel twin-screw and barrel is widely used in PVC products
processing, especially for the production of PVC products with the
output over 350Kg / h, because the parallel twin-screw and barrel
costs less than conical twin-screw and barrel while it has more
4. Parallel twin-screw and barrel is successfully applied in PVC
plate, pipe, profile, pellet and mould, at the same time, it solved
the technical problem of low foaming, high foaming, high filling,
wear and corrosion.
Q: What information should be provided when inquiry price of screw
- Conical / parallel twin screw barrel
- Extruder brand
eg. Jwell 65/132, LSE80/156, KMD114/36, BEX90/22 etc.
- Injection machine screw barrel
- Injection machine model
- Screw diameter
- Type A, B or C
- Single extruder screw barrel
- Plastic products
- Screw diameter & L/D
Q: What information need provided when confirm production drawing?
- gearbox nameplate, if machine made in China, only supply gearbox
nameplate, that we can confirm the production drawing.
- If not from China, it is best to supply
- connection flanges size (gearbox and mold)
- thermocouple holes location, qty & size
- screw shaft size
- barrel outside sketch
1. Be brushed anti-corrosive oil on screw barrel.
2. Packed with film.
3. Packed in the wooden carton.
Welcome to your inquriry on our Custom Made CNC Lathe Milling Machining OEM Machining Extruder
Barrel And Screw .