Double Stage Plastic Granulating Line Applications:
Double Stage PP PE Plastic Film Woven Bag Plastic Granulating Line is double stage plastic regenerative pelletizer, which is suitable for many kinds of plastic waste materials recycling and making pellets, such as PE, HDPE, LDPE, PP, BOPP plastic film, bag, fiber, rope scrap material and etc. The plastic film woven bag can be pressed into the compressor and then pelletized.
1. Applicable plastic materials: PE, HDPE, LDPE, PP, BOPP, PET, PA/Nylon, etc.
2. Material shapes: film, bag, fiber, rope scrap.
3. Material types: rolls, loose, bundled.
4. Material comes from offcut, industry defective materials, washed materials and printed materials.
Note: depending on different material properties, various downstream equipment is needed.

Double Stage Plastic Granulating Line Description:
The double-stage plastic granulating line is especially good for the raw material which contains high moisture, and high impurities.
The first stage extruder adopts an exhaust type of barrel screw, which can effectively de-gassing and eliminate the moisture and contamination;
And the second extruder usually adopts a small L/D extruder, further plasticizing the material and filtering contamination which can achieve stable extrusion.

Double Stage Plastic Granulating Line Process flow:
Conveying feeding→ Metal detector →Film Agglomerator /Compactor →1# Degassing screw extruder →1# Hydraulic filer exchanger→2# screw extruder →2# Hydraulic filer exchanger→ Mould head →water ring cutting →Dewatering machine→ Air dryer Blowing system→ Storage hopper→ Finished product packing.

Detailed description of each item:  
1. Conveyor: convey PP PE film or flakes into the compactor.
2. PE film Agglomerator /Compactor: crushing and compressing film, and feeding compressed film into extruder forced, to make the production capacity high and stable.
3.1# Extruding system: plasticizing material and exhausting gas.
4. 1# High-speed Net exchanging system: filter material impurity, to make production more stable.
5. 2# Extruding system: plasticizing material.
6. 2# High-speed Net exchanging system and Die-head: Second filter material impurity, to make production more stable.
7. Water ring pelletizing machine: cutting pellets in water.
8. Water tank: cooling pellets.
9. Dewater machine: make pellets dry.
10. Vibration sieve: remove bad pellet and keep good pellet.
11. Air Blower: convey good pellets into the silo.
12. Storage silo: keep pellet.

Double Stage Plastic Granulating Line Features :
1. Allow free assembling of the screw component, based on raw material type.
2. Using a suitable die head for palletizing, such as water ring cutting, underwater cutting and hot face cutting.
3. High efficient force feeder ensures stable high capacity material feeding and low power consumption.
4. Main screw has vacuum exhaustion.
5. Water ring granulator machine, attached with dryer. 6. Single screw extruder, with a specially designed screw, barrel, and venting system, ensures the good quality of the final products.
6. Pelletizing style: standard cutting with extrusion mould. Even cutting ensures good shape.

Video