Ultra Micro Cast Film and Sheet Line – Key Features

• Chill Roll Stack:
  • Three rolls, 40 mm diameter, with water cooling and heating capabilities.
  • Includes a roll tempering unit providing temperature regulation from ambient to ~90°C.
• Film and Sheet Specifications:
  • Roll width: 100 mm, producing films/sheets of 40-45 mm (50 mm die) or 60-65 mm (optional 75 mm die).
  • Thickness range: 10 to 300 microns.
  • Rolls made of high-quality stainless steel, precision-ground, and polished to a mirror finish.
• Polishing Roll Adjustment:
  • Upper polishing roll uses manual spindle adjustment for controlled lay-on force.
  • Hand wheels on the roll stack ensure smooth extrusion.
• Standard Die and Optional Upgrade:
  • 50 mm flat die with adjustable lip gap (0.1-0.3 mm) and dedicated heating zone.
  • Optional 75 mm die available for wider films/sheets.
• Extruder Design:
  • Conical screw and barrel (18 mm to 8 mm diameter) with 30 L/D ratio for efficient pellet processing.
  • Single heating zone controlled by a PID temperature controller.
• Hopper Features:
  • Includes a turret valve and a discharge pipe for easy emptying.
• Swing-Away Extruder:
  • Extruder and die can be swung away onto a stainless steel tray for easy purging and maintenance.
• Film Wind-Up System:
  • Rubber nip-rolls and single-station wind-up unit with spring-loaded bobbin core.
  • Variable speed brushless DC motor drive with tension-regulated slip belt drive.
• Electrical and Sub-Cabinet Design:
  • All electrical components stored in a sub-cabinet with easy rear access.
  • Sub-cabinet includes water tank and tempering unit for the chill roll stack.

This compact and versatile system is designed for precision and efficiency, perfect for laboratory and small-scale production environments.