Extruder HAAKE MiniLab II MicroCompounder

HAAKE MiniLab II MicroCompounder
© Fraunhofer IWS Dresden
HAAKE MiniLab II MicroCompounder
Conical co-rotating twin screws
© Fraunhofer IWS Dresden
Conical co-rotating twin screws
Conical counter-rotating twin screws
© Fraunhofer IWS Dresden
Conical counter-rotating twin screws


  • ThermoFisherScientific, Karlsruhe

Technical data

  • barrel is possible to heat up to 350 °C
  • rotational-speed range from 1 rpm up to 360 rpm
  • torque of 5 Nm per screw at most
  • stable against pressure up to 200 bar
  • product volume of 7 cm3(is equivalent to 5 g PE)
  • twin screw extruder is equipped with conical co-rotating and conical counter-rotating twin screws
  • pneumatic supported or manual filling of the barrel
  • integrated bypass valve for switching between circulation into a backflow channel or extrusion
  • integrated rheological measurement with sensor systems at the backflow channel
  • working as autonomous or as computer-controlled device
  • possible to use inert gas to protect the melt against the atmosphere
  • effective process monitoring via torque measurement at the engine and pressure measurement at the backflow channel
  • cooling with air or water is possible


  • insertion of fillers (solid matter or fluids) into a thermoplastic matrix material
  • compounding of expensive materials or miner raw materials like nano-composites, bio-polymers or drugs