Zhoushan Yingda Plastic Machinery Co.,Ltd !




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Blowing Film Screw

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Blowing Film Screw

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Product Description
Brief introduction:
The screw uses high-quality alloy steel, precision processing, conditioning and nitride treatment, with the best hardness and corrosion resistance, specially designed screw equipped with forced transport bushing, reasonable structure, stable performance, good plasticization, high yield, low energy consumption, layering clear, is the production of high-strength, anti-aging, drip-free, light transmission, insulation and other multi-functional membrane ideal.
Screw Diameter: s45-150
Length ratio: 25-32
Product type:
Optional for different plastic ratio screws: ordinary type, pin type, barrier type, separation type, wave type, etc.
Application s:
a) Polyethylene film
A) ordinary polyethylene film, heat shrink packaging film, air cushion film, preservation film (LDPE according to melt index), applied to the film, nursery film, daily packaging bags, food packaging film, etc.
B) Repacking Film (LDPE-LLDPE) for heavy packaging bags
C) Film for sheds (ordinary shed film LDPE, enhanced shed film LDPE and LLDPE)
2) Polypropylene film
A) Blow-plastic packaging film (IPP film)
B) Extruded flow-delayed membrane (CPP membrane)
C) Bipolar stretch film (BOPP membrane)
3) PVC film
A) Soft PVC blow-molding film
B) Rust-proof shrink film
C) Hard PVC transparent packaging film (PVC cellophane)
Processing process:
Nitride treatment
Technical parameters:
Nitride depth: 0.50mm-0.80mm
Nitride hardness: 900-1000HV
Nitrogen brittleness: level 1
Screw straightness: 0.015mm
Chromium-plated hardness of the surface after nitride: s950HV
Chrome thickness: 0.025 to 0.085mm Double alloy depth: 3mm plating
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