Product Description PP film blowing machine USAGE 1) It is used for blowing Plastic film of Polypropylene (PP) 2) Which is used for all kinds of plastic membrane and packaging bag, such as clothes bags, children toy packaging and medicine packaging, etc. CHARACTERISTIC 1. Main motor and take-up motor are controlled by frequency inverter adjustment. 2. Material of screw and barrel: 38CrMoAlA Polished with Nitride Treatment Hardness of heat treatment: Screw HV≥ 740, barrel HV≥ 900 Depth of hardening: 0.6-0.7mm Brittleness grade: ≤ 2 grade 3. Gear box: 250 Involutes cylinder Bevel wheel, cast alloy steel piston, fine grinding hard gear surface 4. Die material: Steel 45#/surface treatment of flow channel: Hard chrome- plating.
