PVC Automatic Metering / Weighing / Conveying Pelletizing Extrusion Line

CYKF has good reputation in PVC extrusion. Our CK-DT series Counter-rotating Twin Screw Extruder is especially designed for PVC. The available screw diameter is between 55 to 130mm. Thanks to our technical team put long term effort on this field which makes CYKF’s PVC extruder is competitive compared to other competitors. Our durable and high-efficient PVC extrusion pelletizing line is able to produce rigid PVC, soft PVC, medical grade PVC, UPVC, CPVC, and additives of foam or wood powders. We are pound to say the PVC extrusion line made by CYKF is no doubt the best choice for customers.

Possible materials :
UPVC, CPVC, Medical grade PVC, Soft PVC, Rigid PVC, Foam and wood powder additives.

How it works :
①Automatic material preparation system ➜ ②High-speed mixer ➜ ③Cooling blender ➜ ④Screw conveyor ➜ ⑤Temporary storage tank ➜ ⑥Force feeder ➜ ⑦PVC extruder ➜ ⑧Die face pelletizing system ➜ ⑨Cyclone tank ➜ ⑩Vibrating cooler ➜ ⑪Storage tank 

Materials are mixed by high speed mixer and delivered by screw conveyor to PVC extruder for extrusion. The vacuum system of PVC extruder removes waste gas during production. After the melts are extruded from the die, the materials are directly cut into pellets by a rotary cutter of the die face pelletizing system, then the pellets are transported by air to cyclone tank and cooled by vibrating cooler. All cooled pellets are stored by storage tank.

• Automatic material preparation system
  

  The whole system includes hopper, storage tank, material refill tank and powder loader. It helps save manpower and can precisely transport small amount of liquid oil and powders as well.
  



• High-speed mixer
  

  High-speed mixer can evenly mix PVC and additives. The mixed raw materials are then delivered to cooling blender to decrease temperature before going to the next procedure. The mixing speed of high-speed mixer is adjustable according to different formulations’ requirements.



• Cooling blender
  

  Cooling blender can rapidly decrease temperature of mixed raw materials to the required level, and screw conveyor will automatically deliver the materials to temporary storage tank for extrusion.



• Screw conveyor
  

  Screw conveyor is used to convey bulk materials from temporary storage tank to force feeder, it is especially suitable for transporting powders. The rotating speed of screws is stable which makes materials feeding more smoothly.



• Force feeder
  

  Force feeder can evenly mix powders and effectively avoid bridging during material feeding.



• Extruder screw
  

  CYKF customizes extruder screws according to customers’ material formulations. From steel selection, machining accuracy to quality management, we have strict standard procedures to make sure good quality and long service life of these key parts.



• Die
  

  CYKF estimates material properties and characteristics for selecting appropriate die material in combination with optimized runner design, that effectively avoids destruction on material properties due to excessive die temperature, uneven material flow rate, material jamming, excessive die pressure, decomposition and carbonization, etc. The die of the PVC extruder is designed with quick clamping in combination with linear guideway, making die open/close and die cleaning easy and fast.



• Die face pelletizing system
  

  The PVC pelletizing machine utilizes a specially cutter hub, providing convenient cutterhead dismantling and calibration.



• Cyclone tank
  

  Cyclone tank can separate air and pellets and process initial cooling for pellets.



• Vibrating cooler
  

  Vibrating cooler removes adherent dust and cools plastic pellets evenly and rapidly.



• Storage tank
  

  The material of storage tank is stainless steel. There are different capacities of the tank for choice. Big bag filling system is also available on request.