Extrusion Screw Barrel for Plastic Recycling

Extrusion Screw Barrel For Plastic Recycling

Recycling is one of the most important actions currently available to reduce these impacts and represents one of the most dynamic areas in the plastics industry today.

The present work en compass (design and fabrication shredder/crusher and extruder of plastic machines) the shredder/crusher of plastic machine is consisting of the four main parts; they are system drive, box, hopper and three blade rotating cutter. Crushing is the process waste into smaller size approximately 0.5 –1cm. The size can be varied depending upon the blade placement with in the crusher. The plastic wastes after segregation fed into the crusher through a Hooper undergo crushing between the stator and rotor. The rotor is driven by an l/2 hp electric motor. The crushed particles there after moves into the extruder of breaking down the plastic.

The extruder of plastic machine is consisting of the five main parts; they are hopper, drive of screw, barrel, and nozzle (die), heaters and control system. Extruder is the prime part of the machine where in the crushed particles gets drawn into wires through a die. Screw is the heart of the extruder, which employs heating element through its length. The heat for melting the Crushed plastics is controlled using a heating control unit. The Screw, which is motor driven conveys the molten Plastic to the opening of the die.

Technical Parameters

Recycling Type: Scrap, Film…
Application: All kinds of thermoplastics for recycling use
Screw Type: Single Screw
Machine Stage: Single Stage or Two Stage
Venting: Degas type
Size Available: Φ90 – 250 mm
L/D：20:1, 25:1, 28:1, 30:1

Screw Barrel Treatment: Bimetallic

Reinforced Additives: CaCo3, Talc ...

Hardness of Screw Surface: 58 - 64 HRC

Straightness: 0.02mm/m

Roughness: Ra0.2 - 0.4

Max Temperature: 600 degree

Specifications of different models

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