High Efficiency PVC Plastic Granulator

Granulation line summary

Suitable for raw material: PVC
Suitable for granulation: 3mm
Center height of line: 1100mm
Driving power supply: 3 phase 380V (± 10%) 50Hz
Assembly total power: 115KW
Granulation line overall dimension: 16000X1800X2000mm


Constitute of the line

Conical twin screw extruder model SJZ 80/156
Grinding hot cutting mold


Conical twin screw extruder model SJZ 80/156

Extrusion system (screw & barrel)
Screw dia.: Φ 80mm, Φ 156mm
Max. Output: : 500 kg/h
Screw construction is specially designed for PVC powder material, through conical clusal method, conduct heterodromous rotation, speed: 1-34.7r/min
Screw material: Using high quality alloy steel 38CrMoAIA, by nitriding treatment under high temperature, nitriding depth: 0.5-0.7mm, surface hardness: HV740-940
Screw core temperature control: Using internal recycle device for heat conduction then control the temperature of screw core.
Barrel material: High quality alloy steel 38CrMoAlA, by nitriding treatment under high temperature, nitriding depth: 0.6-0.7mm, surface hardness ≥ HV940
Barrel temperature control system
Heating zone: Aluminium casting heating ring + stainless steel shell + cooling fan
Heating zone qty: 5 zone, heating total power 36kw
Cooling fan power: 4x0.55kw/set
Head connector: 38CrMoAIA, by hardening, tempering and surface nitriding treatment, runner surface is plated with hard chrome(Cr), using confluence format.
Quantitative feeding system
Using stainless steel feeding hopper, fitted with 700kw spring feeding device
Quantitative feeding device
Feeding motor power: 1.5kw three phase asynchronous motor, connected with micro cycloid pin transmission, motor speed range: 10 ~1500 r/min; Feeding screw speed range: 1 ~ 50 r/min
Feeding device speed regulator, controlled by AC ABB frequency converter
Vacuum air discharge device
Vacuum pump: Direct connection water ring vacuum pump 1 set
Vacuum pump power: 4kw
Vacuum pump motor working format: Three phase asynchronous motor
Vacuum degree: 0~0.075 Mpa
Transmission speed reduction system
Using high torque reduction gear box
Water cooling temperature reduction device
Gear material of reduction gear box: 20CrMoTi, gear speed reduction apply
With rigid tooth surface combining with oblique tooth surface; Gear nitriding & grinding treatment apply with Germany technology, which is with long life service, low noise, low energy consumption. Horizontal reduction gear box: Main motor is connected with reduction gear-box through coupling deviceDistribution box: By hypercone gear, it changes from single shaft torque output to double shaft torque output.
Main motor system
AC main motor
Main motor power: 55kw 380V 50Hz
Main motor speed regulation: ABB speed regulator control


Grinding hot cutting & secondary air auxiliary machinery

Pelletizing mold use high quality alloy steel material 38CrMoAIA, which is treated by hardening, tempering, destressing etc multi heat treatment processing, it has wear and corrosion resistance. The part connected with main machine and other structure parts are all joining by bolt, which enable it to be with reasonable structure and easy for dismounting.

Hot cutting mold hole diameter: 3mm
Mold heating has two section, mica heating ring, heating power: 4kw
Pelletizer motor power 1.1kw, blade quantity 3PCS
All parts touched with granule are made of stainless steel material, which is rust and corrosion resistance, has no pollution for products. Use secondary air, high quality fan 2PCS, motor power 4kw; 2 sets vortex separation zone are connected with air tube, transportation tube are all use stainless steel material, which will be fully cooled; Aggregate zone: Is made of stainless steel material, with observation window, max. Granule capacity is 800KG; Falling material cone angle is 60 degree, pull valve, easy for package.