extrudeurs bandeau

Simply described, the twin-screw extruder is a machine consisting of two co-penetrating and self-cleaning identical screws which are mounted on shafts and rotate in the same direction in a fixed closed housing called “barrel” . The twin-screw extruders operate continuously with very short residence times.

We offer a wide range of twin-screw extruders with different characteristics depending on the industrial application and the degree of sophistication required. These machines are the heart of our continuous production lines for food & feed, cellulose pulp, plastics compounds, chemical compounds and energetic materials.

Key features of Clextral Evolum® extruders:


  • Adapted power and speed : according to the product being processed, the extruders are proposed with screw speeds up to 1200 rpm and torque density up to 12 Nm/cm³, allowing to have an installed power perfectly adapted to the users needs
  • Optimized temperature control : further extensive R&D work conducted by Clextral, the design of the Evolum® barrel sections provides the best cooling capabilities and allows an accurate control of the temperature profilegrâce à une conception homothétique
  • Assortiment de visEasy scale-up : the Evolum® series has been conceived for a direct volumetric scale-up thanks to its homothetic design
  • Patented barrel opening : Clextral proposes a direct hydraulic opening of the barrels to have an access to the screw profile without cumbersome shaft extraction
  • Modularity : thanks to its presence in all twin screw extrusion markets, Clextral proposes the widest range of screw elements and barrel design
  • Enhanced process control : PLC Fitsys+ controls perfectly the extruder and its ancillaries and interfaces easily with the line supervision

Evolum range :

EV 25 25 mm 100 mm 24 to 40
EV 32 32 mm 128 mm 12 to 48
EV 53 53 mm 212 mm 12 to 48
EV 68 68 mm 272 mm 12 to 48
EV 88 88 mm 352 mm 12 to 48
EV 145 145 mm 580 mm 12 to 40