Background LFI process mixing head

LFI process mixing head

Fibers and PU in Composite material

The LFI-PU (long-fiber injection polyurethane) process is used in the production of high-strength, lightweight parts.

Versatile application
Wetting the fibers with the reaction mix
Fiber quantity and length can be configured based on requirements
Flow-optimized geometry of the cleaning piston


  • Cutting unit with cutter roller and pressure roller
  • Service-friendly: optimum accessibility with easy cutter roller replacement
  • Adjustable fiber quantity and length

High-pressure counterflow injection: Components are shot into a mixing chamber at high speeds where the speed energy is converted into mixing energy.

The flow-oriented geometry of the cleaning piston generates a hollow, hose-shaped material flow and ensures optimum wetting of the shortened glass fibers.