Optimized PP/PE Film Regrind Pelletizing Line from Washing Process

Optimized PP PE film regrind pelletizing line in an industrial setting, featuring recycling and pelletizing equipment used for plastic film recovery and reuse after the washing process.

The two-stage PP PE pelletizing system is designed to handle film regrinds from a washing plant. It comprises two sets of single screw extruders to ensure the final product is of superior quality. Final products generated by this pelletizing system are in the form of pellets/granules and can be directly used in the production line for film blowing, pipe extrusion, plastic injection, etc.

Working Principle

  1. Feeding. The film regrind is fed into the dosing feeder through a screw conveyor. When the electric current of the extruder exceeds the preset level, the dosing feeder and feeding screw conveyor will halt automatically.
  2. Plasticization and Degassing. A customized single screw extruder is utilized to gently melt the film regrind. The plastic scraps are thoroughly melted and plasticized in the first stage extruder. The plastic is then extruded by the second stage extruder. With a double-zone vacuum degassing system, volatiles such as low molecular weight compounds and moisture are effectively removed. This system is particularly suitable for heavily printed films and material with some moisture content.
  3. Melt Filtration. Following our segmented filtering principle, pre-filtering is completed in the first extruder, while fine filtering is done in the second extruder. This helps to decrease the frequency of replacing filtering sieves.
  4. Pelletizing. To achieve optimal dried pellets, a die-face water ring pelletizing system is equipped with an advanced dewatering vibration sieve and horizontal-type centrifugal dewatering.

Technical Specifications

Machine SizeEfficiency Volume (Liter)Motor Power (KW)Diameter of Screw (mm)L/DExtruder Motor Power (KW)Throughput Rate (kg/h)
PE-2503001.1120/13030/102.84200-300
PE-5005002.2140/15030/102.91400-500
PE-8008003.0160/18030/102.78700-800
PE-100010004.0180/20030/103.50800-1000

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Author: Rumtoo Plastic Recycling Machine

Rumtoo Plastic Recycling Machinery, Rumtoo Recycling for short, the leading manufacturer of high quality PET Bottle、PP / PE Film Recycling Machinery. Our PE film washing lines offer reliability, efficiency and maximum durability in recycling dirty and soiled PET bottle、PE film back into plastic granulate. With more than two decades of service to the plastics recycling industry, Rumtoo is proud to be responsible for recycling thousands of tonnes of plastic films such as plastic bags, PP non-woven supersacks and LDPE film every month at hundreds of recycling facilities worldwide.

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