Screw Diameter:φ20-φ220 Clamping force:250T-3200T Injection amount:30g-30000g Technical indicators: Quenching and tempering hardness:HB280-320 Nitriding hardness:950-1100HV Nitriding depth:0.50-0.80mm Nitriding brittleness:Less than 2 Surface roughness:Ra 0.4μm Screw straightness:0.015mm/m Hardness of alloy layer:HRC60-72 Depth of alloy layer:More than 3mm Hardness of chromium plating layer after nitriding:More than 950HV Thickness of chromium plating:0.025~0.10mm Screw type: For different formulations and products, screw can be selected: ordinary type, pin type, barrier type, separation type, exhaust type, etc. Small parts of injection molding machine Material: 38CrMoAl A Nitriding treatment,surface hardness:More than HV900 Depth of nitriding layer:0.5-0.8mm 2, material: special alloy steel, through vacuum quenching and other heat treatment process, can greatly improve the service life of three small pieces.