Plastic Granules Making Machine (for Recycling and Pelletizing) :
Plastics granules making machine which works on a principal of plastic extrusion process, is a normally high volume manufacturing process where a polymer material, enriched with the desired additives, is melted and formed in a continuous process. Where output can get form of granules, tubes, sheets, lumps and etc.
How It Works :
In the entire process, A plastic material, normally in flakes form is placed into hopper of extruder, usually made from fabricated from mild steel or fabricated from stainless steel as per material requirement. There is a hopper magnet fitted inside the hopper to stop metallic particles from entering inside the barrel. The raw material in the form of flakes, is gravity fed into the hopper and through the feed throat, drop on the rotating screw. Barrel has several amount of heaters fitted on the outer diameter. Which heats up the barrel to get extrusion process job done. Screw is connected with helical gearbox and AC motor which helps to rotate the screw. Raw material in flakes form starts to move forward along the rotating screw and enters the heating spot of barrel. Where it starts to melt. Molten plastic reaches the end of the barrel where hydraulic screen changer is fitted which filters the molten plastic and converts it into plastic strands. Plastic strands moves forward and drops inside the stainless steel water tank and its temperature starts to cool down. Plastic strands then enters the pelletizer machine which turn it into pellets.
Model Range :
various models available which are classified according their production rate. 65 mm to 125 mm screw size extruder models available.
Production range:
Production Range of 50 kg/hr to 300 kg/hr.
Salient Features:
- Screw & barrel are made of EN41-B mild steel, nitride and honing finished for quality production & longer durable life.
- Optional : Tungsten carbide coated screw & barrel available, for high production machines to provide a longer durable life.
- Screw design for reprocessing & coloring application of LLDPE, HDPE, LDPE, PP, HM, PVC, ABS & HIPS.
- Screws are designed for specific material to get better quality for specific material while producing single category material or universal design for every material.
- Barrel has been divided into heating zones for accurate temperature control.
- Digital pyrocontrol panel for faster heating & energy saving.
- Thermocouples are provided for each heating zones for temperature control through digital temperature controllers.
- Movable motor attachment provided for main AC motor & pelletizing motor.
- Extruder unit is consisting of heavy & sturdy MS channel’s fabricated frame and covered with CRC sheet.
- High efficient hopper magnet provided for detect and restrict the ferrous material from the polymer.
- Screw is rotated by suitable AC motor with heavy duty helical gear box. AC motor and helical gear box are from reputed brands.
- Hydraulic screen changer provided to filter molten plastic in case it contains dust or particles.
- Die attached with hydraulic screen changer which converts molten plastic into plastic strands after filtration. Comes along power pack.
- Cooling tank is fabricated from stainless steel sheet, which mounted on height adjustable fabricated stand. Where guide rollers are provided to convey the strands forward towards pelletizing unit.
- Pelletizing unit fabricated from heavy angles, where peletizer is mounted which has consisting sets of carbide tips moving blades. Unit is driven by AC motor.
Extras (Optional) :
- Tungsten carbide coated screw & barrel, for high RPM machines to boost screw life.
- AC drives from reputed brands to maintain motor speed at desired rpm.
- Pressure transducer with buzzer system for hydraulic screen changer to detect mesh pressure. (Helps to notify labor to change screen as soon as possible)
- Accumulator power pack for hydraulic screen changer to boost hydraulic up/down speed.
- Automatic hopper loader to load raw material into hopper with help of blower. (substitutes labor need)
- Air knife, to prevent water entering into pelletizing unit and helps for moisture free pellets as an output.
- Forced feeder, for hopper to feed low density raw material easily to boost production rate.
- Manual die head, instead of hydraulic screen changer. (to reduce the cost of machine) (best option for clean material recyclers)
- Barrel vent, for engineering grade material like ABS & HIPS for moisture free granules and quality output.
- PLC based HMI control panel with touch screen display
- Vibro shifter, to separate rejections and finished granules effortlessly.
Layout :
Process for plastic granules making machine:
