Blowing film、Granulation、Wire&Cable、Sheet&Panel and other single screw extrusion products
Single Extruder Screw and Barrel
1 set (1 pc of screw and 1 pc of barrel)
Screw I TYPE:nitriding ones II TYPE:bimetallic ones ⅢTYPE:chrome plating Barrel I TYPE:nitriding ones II TYPE:bimetallic ones
Stop ring+washers to adjust the space between screw and barrel
Material:High quality 38CrMoAlA Process:Advanced nitriding & bimetallic process Hardness After Hardening & Tempering:HB280-320 Nitrided Hardness:HV900-1000 Nitrided Case Depth:0.45-0.8mm Nitrided Brittleness:Less than Grade 2 Surface Roughness:Ra 0.4 Screw Straightness:0.015mm Alloy Hardness:HRC 50-65 Alloy Depth:0.8-2.0mm
Thickness After Chrome:0.05-0.10mm Chrome Hardness:Not less than 950HV
Batten - Machinery
- Devote on Screw barrel
1. CNC screw milling
2. Turning machine
3. Screw and barrel matching
4. Borning barrel inside
5. Barrel feeding hole
6. Barrel holes punching
7.Barrel inside hardness
Barrel inside hardness will be checked after hardening & tempering and nitriding.
8.Screw flights hardness
Screw hardness will be checked twice after heat treatment.
Each size will cheked during production and once again after finish.
Our heat treatment
Hardening & Tempering
72 hours hardening & tempering,hardness is HB280-320.
120 hours nitriding,hardness is HV900-1000.
Alloy Hardness:HRC 50-65 Alloy Depth:0.8-2.0mm
Step 1-Rust Preventing Oil
Step 2-Casting Film Wrapped
Step 3-Polywooden Case
Battenis located in "China Screw Barrel Home Town",where has 30 years history. We are experted in various kinds of screw and barrel designs. We understand the needs of your business and have designed our products, from extrusion lines screw and barrel to injection machine screw barrel, to enhance the performance of your polymer processes.