Extruder screw barrel can produce a variety of plastic products, such as pipes, film, sheet, granulation, can be used for the production of plastic pipes, wire and cable insulation layer, plastic sheet, film, fiber and other plastic products. These products are widely used in construction, electronics, automobile, packaging and other industries.
Types of screw:
Gradual type, mutant type, wave type, barrier type, double screen type, shunt type, separation type, exhaust type, pin type, mixed type, double-head type, three-head type, multi head type etc.
Material:38CrMoAIA
Hardness after quenching and tempering: HB260-290
Diameter: Φ15mm-Φ300mm
L/D: 4-55
Hardness after nitriding: HV900-1000
Depth of nitrided layer: 0.5-0.7mm
Brittleness after nitriding: ≤second level
Surface roughness: Ra0.4um
Straightness: 0.015mm/m
Inside&outside diameter tolerance: ≤0.02mm
Screw length tolerance: ≤0.03mm
Key&spine tolerance grade: Grade 7
Single screw extrusion screw barrel can be applied to PP, PE, PS, ABS, PC, PMMA, PVC, TPU and other thermoplastic pipe, film blowing machine, sheet, profile and so on.
For different raw materials and product specifications, the screw uses different aspect ratio and compression ratio, the barrel uses a different structure. To meet the processing needs of high-quality products.
SCREW BARREL FOR GRANULATION MACHINE SERIES
Screw Barrel for granulation machine/Pelletizer. We have rich experience in pelleting screw barrel, we have developed a variety of new type of granulation machine/Pelleting screw barrel, with different screw designs, greatly improved the production output, and enhance the service life via continuous practice. The screw barrel can be used for materials like PP, PE, PC, ABS, PET, PA, PMMA and all kinds of engineering plastics. We also water granulation type screw barrel, and design for film with new type high efficiency. The screw barrel adopts the special compulsory feeding design system with high efficiency and output which access to the user’s praise.
PP, PE, ABS, PS, PVC, PC commonly used plastic recycling granulation series
Double step granulation recovery screw barrel is adopted
USUAL SPECIFICATION
Host diameter: Φ90mm-Φ220mm
Ratio of length to diameter: L/D=25-32
Host diameter: Φ90mm-Φ200mm
Ratio of length to diameter: L/D=8-12
PA6, PA66 nylon series.
Screw barrel with a special structure design, high yield, wear resistance, screw no longer appear too much force and broken phenomenon. For waste silk, fishing net silk, safety rope, wood shavings, airbag cloth, cloth head and so on.
USUAL SPECIFICATION
Diameter: Φ90mm-Φ180mm
Ratio of length to diameter: L/D=22-30
Film, woven bags, foam and other soft materials series.
Screw barrel structure has a side screw feed, side pellet feeding and so on. For conventional PP, PE, TPU, PC, PS, PET film materials, film series.
USUAL SPECIFICATION
Diameter: Φ90mm-Φ280mm
Ratio of length to diameter: L/D=20-36
Water granulation series.
For water membrane, woven bags, tons of bags, airbags cloth, Koubei series. Screw barrel with a special feeding design, eat fast, smooth drainage, high yield. Common double-stage, three-stage.
USUAL SPECIFICATION
Diameter: Φ120mm-Φ280mm
Ratio of length to diameter: L/D=15-26
Squeeze dry grain series.
For film material with water, woven bags, pulp material, tons of packets such as extrusion granulation. Granulated particles compact, dry, suitable for transport and re-granulation.
USUAL SPECIFICATION
Diameter: Φ250mm-Φ350mm