The screw chooses different compression ratios according to different recipes and different products，material 38CrMoAIA.The screw surface uses double alloy welding to effectively increase the service life of the screw，apply in ordinary plastics such as ABS, PP, PE, 475, PEV.
Comressing rate of screw can be designed according to different raw materials and products.
1、Material：38CrMoAIA，Nitriding treatment，Surface Hardness：HV900，Nitrided Depth：0.5-0.8mm。
2、Material：38CrMoAIA，The screw surface uses double alloy welding to effectively increase the service life of the screw.
3、Marerial：38CrMoAIA，The easy-to-wear part of the feed port adopts imported alloy steel. After special treatment, it can effectively improve the wear resistance of the barrel and increase the service life.
Technical Indexes：
Usage distinction：Injection Molding Machine/Extruder
Processing range：Ф12mm - Ф300mm
Effective length：12000mm
Nitrided Depth：0.4mm-0.7mm
Nitrided Hardness：HRC58°-62°
Chromate-plating Depth：0.02mm-0.20mm
Screw straightness：0.015mm/m
Applicable plastic range: ABS, PP, PE, 475, PEV and other ordinary plastics.
