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CROWN single screw extruder
Single Screw Extruder

Ideal for production, material testing, new product development and quality control purposes, and used in various processes such as compounding, pelletizing, sheet extrusion, pipe extrusion, wire coating and blown film

Available in 1 1/2", 2 1/2", 3 1/2", 4 1/2", 6", 8", 10" and 12" diameters with variety of standard and custom-designed screws and barrels are available for various applications


Features:
  • Hardened alloy steel or bimetallic cast liners for added wear and chemical resistance
  • Rupture disc port protects against excessive pressure build up
  • Reduced root diameters in the venting area allow for efficient single or multi-stage venting
  • Vacuum system with separator on the extruder frame is easily accessed for cleaning and maintenance
  • Screws finished with Stainless steel, Dura-nickel, nitride hardening chrome or plasma coating

Control Systems & Drives:
  • Incorporates the latest technology: DC ammeters, digital speed indicators, heat zone meters, pressure gauages, melt thermocouples, strip chart recorders, and any other custom instrumentation as required
  • Control and monitoring units are easy to operate, and allows for the process to be monitored at each stage of the production
  • Barrels are divided into heating and cooling zones for greater temperature specificity
  • Heating is derived from resistance heating elements and cooling from the use of air or fluid
  • Temperature of each barrel zone is controlled separately
  • Auto tuning PID temperature controls display set point, present value and digital amp meter and heater open alarm
  • Low noise gear reducers with integrate torque distribution
  • Standard AC inverter drives for excellent torque over speed range

Technical Data
Feature 2.5" 3.5" 4.5" 6" 8" 10" 12"
Screw
dia(mm)
65 65 65 150 200 250 300
Screw
depth(mm)
3.85 4.6 6 9 9 11 11
L/D 24-48 24-36 24-36 24-36 24-36 12-31 12-32
Screw
max(RPM)
200 200 200 200 200 230 200
Motor
(HP)
40-100 20-200 50-400 100-600 100-1,000 500-3,000 500-3,000
Capacity
(kg/hr)