Double stage film recycling pelletizing line is designed specifically to transform post-industrial and post-consumer film waste – such as LDPE, LLDPE, HDPE, and PP – into consistent, high-purity, and free-flowing pellets.
Double stage film recycling pelletizing line is designed specifically to transform post-industrial and post-consumer film waste – such as LDPE, LLDPE, HDPE, and PP – into consistent, high-purity, and free-flowing pellets. This two-stage process separates the extrusion and pelletizing functions, offering unparalleled control, stability, and superior product quality compared to single-stage systems.
A double-stage system decouples the extrusion process from the cutting process. The melt is first extruded into strands through a die face, which are then cooled in a water bath. Once cooled and solidified, the strands are fed into a separate, independent pelletizer for precise cutting. This separation is the key to its exceptional performance.
Applicable plastic materials: PE, HDPE, LDPE,PP, BOPP, PET, PA, EPE, etc
Material shapes: film, bag, , non woven fabric, crushed material(PE, PP)
Material types: (rolls, loose, bundled),
Material comes from offcut,defective film and washed film.
Note: depending on different material properties, various downstream equipments are needed.
| Model | ML75 | ML85 | ML100 | ML130 | ML160 | ML180 | ||
| L/D | 35:1 | 33:1 | 36:1 | 36:1 | 33:1 | 35:1 | 30:1 | 33:1 |
| Rotary speed(r/min) | 220 | 220 | 185 | 185 | 150 | 150 | 120 | 120 |
| Capacity(kg/h) | 150-200 | 200-300 | 400-450 | 500-650 | 650-700 | 800-900 | 1000 | 1500 |
Note: Plastic pelletizing machines are customized product, any changes in material and motor configuration will affect the output capacity data. Please consult our sales quotation for guidance.
PE film→belt conveyor→compactor→mother extruder →hydraulic screen changer →baby extruder→hydraulic screen changer →pelletizing system →air transmission →silo storage
Feed film on the Belt conveyor machine and go into Compactor for cutting, heating, compacting and mixing, then enter the extruder for extruding.
Feed regrind material through the Spiral charger and Feeder on the extruder.
Instruction: the film and regrind material can be recycled separately or together, depending on customers’ different needs.
Belt Conveyor
As standard design, plastic scraps such as film, filament, raffias conveyed into the compacting room through belt conveyor; to handle 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 or roll hauling off is fully automatic based on how full the compactor’s room is. Metal detector can be combined with belt conveyor, and can interlock with contrl system, to warn and stop the system, in case that metal is found in feeding.
Compactor / Agglomerator
The rotatory blades of compactor will cut up incoming scraps. Frictional heating which caused by high speed rotatory blades will heat and let scraps 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.
Extruder
A specialized single screw extruder applied to gently melt the pre-compacted material. The plastic scraps will be well melted, plasticized in a 36D processing section. 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 water content
Water-ring Die-face cutting system
Water-ring die-face/Strand cutting methods are usually adopted. In water-ring die-face cutting system, the rotary cutting blades will be pneumatically fit completely and closely to the die-face surface to ensure efficient cutting. Rotary speed of the blades is automatically adjusted by module system according to melt pressure at the die face.
Vibration drying system
Advanced dewatering vibration sieve combing with horizontal-type centrifugal dewatering present high performance dried pellets and lower energy consumption.Combine crushing, compacting and plletizing steps in one system, less-labor cost.Higher efficiency feeding, suitable to film, filament, raffia, foaming materials;Higher output and lower energy consumption
