... Screw Double Die Dead Film Blowing Machine,film blowing machine,PE film extruder,PE film blowing machine,LDPE,HDPE 1. main motor and ... with nitrogen Treatment hardness of heat treatment: screw HV≥740, barrel HV≥900 depth of hardening:0.6-0. ... 006-0.10mm0.006-0.10mmTotal Power 18kw22kw28kwWeight of machine 2000kg2200kg2800kgOverall Dimensions(L*W*H) 4200X1800X3600mm4400X2000X4000mm4600X2300X4200mm