product name: 90/188 Foaming Screw 6 sections 6 heads

classification: Come Twin Foaming Screw Material Special Barrel Screw

Screw Cyinder Material:38CrMoAlA
Cylinder Alloy Length:400mm
Screw Alloy Length:450mm
Screw Cyinder Alloy Depth:0.8-2.0mm
Hardness after AdjustmentHB260-290
Nitridation Depth:0.50-0.70
Sulace Hardness afer Adustment HV940-1050
Screw Straightness:0.015
Cylinder Straightness:0.05mm
Cylinder Concentricity. Above 9o%
Cylinder Centrad:0.05mm
MakePyC Cnst Foaning Pane, pvc Wood and Pastc Foanng Panel
Make 2.5m Wide Panel, Make over 2cm Thick Panel