This series compacting pelletizing line, it is a recycling machine designed for low density plastic articles. It could provide the excellent re-pelletizing and recycling solution for film, raffia, filament, woven bag and nonwoven fabric post soft or rigid
plastic. Our pellet making machine has a wide application in PE, PP, CPP, BOPP, PS, EPS, ABS, PA, PLA, PET waste plastic materials recycling field.
1. Belt conveyor feeding: as standard design, plastic scraps such as film, bag, filament, raffia conveyed into the compacting barrel through belt conveyor; to process rolls' scraps, roll hauling off device is an optional feeding method. Motor drives of conveyor belt and hauling device cooperate with ABB inverter. Feeding speed of conveyor belt and roll hauling off is fully automatic based on compactor's barrel' space. Metal detector can combined with belt conveyor, and can interlock with control system, to warn and stop the system, in case that metal into the screw.
2. Compression barrel: crushing and compacting the material, the rotatory blades of compactor will cut up incoming scraps. Frictional heating which caused by high-speed rotatory blades will heat the scraps, and let them shrinking just below their agglomerating point. Optimal designed guide structure compacts the material and directs it into extruder screw. Crushes, dries and compacts the material, which enables a fast and stable feeding from the compactor directly into the extruder.
3. Extruder: to plasticization and degassing, a specialized single screw extruder applied to melt the pre-compacted material. The plastic scraps will well melted, plasticized in the first stage extruder, and the plastic will be extrude by the second stage extruder. With double-zone vacuum degassing system, volatiles such as low molecular and moisture will be removed efficiency, especially suitable to heavy printed film and material with some water content.
4. Non-stop hydraulic screen filter changer: double stage filtering, 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 heavily on the quality of the input material as well as the planned use of granules.
5. Cutting pelletizing: die-face water ring pelletizing system as the standard granulating method in Wedo system. Self-adjusting pelletizing head for the best granulate quality, and consistently correct blades pressure can ensure long running. Rotate speed of cutting blades is automatic based on melt extruding pressure. Advanced dewatering vibration sieve combining with vertical-type centrifugal dewatering present high performance dried pellets. Model | Screw Diameter (mm) | L/D | Extruder motor (kw) | Output capacity (kg/h) |
SJ90 | 90 | 28 -33 | 55 | 120-150 |
SJ100 | 100 | 28 -33 | 75 | 180-200 |
SJ120 | 120 | 28 -33 | 110 | 250-300 |
SJ140 | 140 | 28 -33 | 132 | 300-400 |
SJ160 | 160 | 28 -33 | 160 | 400-500 |
SJ180 | 180 | 28 -33 | 200 | 500-600 |