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The perfect addition for your existing extrusion

From contaminated, moist flakes to clean, dry, dust-free, crystallised and food contact compliant flakes. This is the job of the Multi Purpose Reactor (MPR®) from EREMA. And the system takes care of this for you in an extremely reliable and energy-efficient way.

The Multi Purpose Reactor complements your existing extrusion system and ensures that your washed PET material is already food contact compliant prior to extrusion. In many countries the legal framework will continue to develop in this direction; in the EU it is already laid down in Commission* Regulation (EC) No. 282/2008. However, you can also use the MPR® as a stand-alone solution (without subsequent extrusion).

Flexible on input

The patented MPR® is a highly efficient crystallisation dryer, as also used (in a somewhat different form) in the VACUREMA® system. Washed PET bottle flakes, ground PET flat sheet waste and virgin PET material plus mixtures of them can be used as input material.

* Commission Regulation (EC) No. 282/2008 of 27 March 2008 on recycled plastic materials and articles intended to come into contact with foods.



  • The system gives you clean, dry, dust-free, crystallised and food contact compliant PET flakes already BEFORE your existing extrusion 
  • Easy to retrofit on your existing extrusion plant
  • High profitability
  • Best energy efficiency:
    • Extremely low total specific energy consumption of only 0.1 kWh/kg
    • Comes with energy-efficient ecoSAVE® technology
  • Maximum flexibility: wide range of PET input mixtures possible, input materials with varying residual moisture and bulk density possible
  • More output: thanks to the bulk density increase of up to 80% possible for PET flakes and flat sheet waste the output of your PET extrusion plant increases, too


  • Increased temperature and vacuum for effective decontamination, drying and crystallisation of PET
  • Better flake colour results thanks to vacuum processing
  • Dust-free flakes to avoid gelling problems
  • Materials with a low melting point can be processed without bridge formation (e.g. PET/PE, PLA, PET-G)
    • Predrying to below 50 ppm moisture
    • Slight increase of IV value possible



How it works


1 2 3 4
  1. Input material:
  2. Reactor:
  3. Discharge screw:
  4. Melt extruder:

Feeding (1) is automatic and continuous via a vacuum sluice above the reactor. Inside the reactor (2) the material is heated by friction alone. In the case of high temperatures and high vacuum the drying process is accelerated. Additionally these conditions ensure effective decontamination and crystallisation. A short discharge screw (3) then conveys the hot material out of the reactor. The material now goes to the melt extruder (4).

Possible materials

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