Our PE film plastic pelletizing machine combines functions of crushing, compacting, plasticization and pelletizing all in a single step. At the core of this system is our highly efficient single screw extruder with advanced heat stabilization technologies resulting in high-quality pellets that help to improve your bottom line.

In addition to pelletizing plastic films, this system can also be used for raffias, filaments, bags, woven bags and re-pelletizing of densified materials. The final products produced by this pelletizing system are in the form of pellets or granules that can be directly used in production lines for film blowing, pipe extrusion and plastics injection, etc.

Working Principle：

Feeding: as standard design, plastic scraps such as film, raffias are conveyed into the compacting room through belt conveyor; to handle rolls’ scraps, roll hauling off device is an optional feeding method. The feeding speed of the conveyor belt or roll hauling off is fully automatic based on how full the compactor’s room is. The metal detector can be combined with belt conveyor and can interlock with the control system, to warn and stop the system, in case metal is found in the feeding section.

Shredding and compacting: the rotatory blades of the compactor will cut up incoming scraps. Frictional heating which is caused by high-speed rotatory blades will heat and let scraps shrink just below their agglomerating point. Optimal-designed guide structure compacts the material and directs it into an extruder screw. Crushes dries and compact the material which enables a fast and stable feeding from the compactor directly into the extruder.

Plasticization and degassing: A specialized single screw extruder is applied to gently melt the pre-compacted material. The plastic scraps will be well melted and plasticized in the first stage extruder, and the plastic will be extruded by the second stage extruder. With a double-zone vacuum degassing system, volatiles such as low molecular and moisture will be removed efficiently, especially suitable for heavy printed film and material with some water content.

Melt filtration: Segmented filtering principle, fore filtering in the first extruder, and fine filtering in the second extruder, to reduce the frequency of filtering sieves changing. The requirements on the filter technology depend on the quality of the input material as well as the planned use of granules.

Water-ring Pelletizing: the die-face water-ring pelletizing system is set as the standard granulating method. Advanced dewatering vibration sieve combined with horizontal-type centrifugal dewatering present high-performance dried pellets.