extrusion parallel twin screw
1)We design our brand, screw and barrel .We make sure the course of processing smoothly.
2)we have a well quality control system.Screws are processed by high-precision special NC screw milling machines to ensure high consistency extruding performance. We try our best to lower the cost of your budget and supply high quality screw and barrel .The special design of distribution cainet enlarges thrust bearing and adopts original bearings, guaranteeing the long service life .
3)According to customer requirements , most reasonable screws and barrrels can be configured to achieve optimal plasticization and logistic quality.
Parallel twin screw and barrel type
Φ40/2 | Φ50/2 | Φ65/2 | Φ80/2 | Φ90/2 | Φ105/2 |
Φ125/2 | Φ130/2 | Φ150/2 | Φ180/2 | Φ200/2 |
Max L/D:1/36
Compressing rate of screw can be designed according to different raw materials and product.
Material
Alloy-Steel of High-quality
1)38CrMoALA(JIS SACM645)
2)42CrMo(JIS SCM440)
3)9Cr18MoV
4)CW6Mo5Cr4V2
Heat-treatment
Nitriding treatment
Electroplated hard-chrome finish
High-frequency quenching
Spray coating Bimetallic-alloy
Vacuum quenching
Technical data
Hardness After Hardening &Tempering: | HB240 -280 |
Nitrided Hardness: | Hv850-1000 |
Nitrided Depth: | 0.45-0.7mm |
Nitrided Brittleness: | ≤Grade 2 |
Surface Roughness: | Ra0.4 |
Screw straightness: | 0.015mm |
Surface Chromate-plating's Hardness After Nitrided: | ≥900Hv |
Chromate-plating Depth: | 0.05-0.10mm |
Bimetallic-alloy Hardness: | HRC56 -65 |
Alloy Depth: | 0.8-2.0mm |
Parallel twin screw
