Factory Made Low Price Extruder Single Screw Barrel Quality Choice
Main parameters of screw and barrel:
Product |
38CrMoAIA screw and barrel for extruder machine |
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 |
Screw straightness |
0.015mm |
Hardess of surface chromium-plating after Nitriding |
HV≥950HV |
Chromium plating Depth |
0.025-0.085mm |
Alloy Depth |
2.5mm-4mm |
Alloy hardness |
HRC62°~72° |
Heating-treatment |
nitrogen ,electroplated hard -chrome finish,high frequency quenching |
Produce Process:
Workshop:
Packing:
OUR MACHINE HAVE GET CE AND SGS CERTIFICATION!


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