Blown Film Die

· Adopt 1.2714 steel,hardness after heat treatment reaches HRC28-34. · Roughness of flow surface after polishing is 0.015-0.02μm. · All fasteners are at 12.9 grade. · Chrome-plating thickness is 0.02-0.04mm,hardness is HV800-950.Or nickel alloy plating, thickness is 0.015-0.02mm,hardness is HV900-1000. · Maximum bearing pressure 500bar. · External die lip is designed to be adjustable, to keep the concentricity with internal die lip.

· Optimized design, strong self cleaning capacity, short cleaning time, low pressure loss and easy assembly.