Long Fiber Injection (LFI)

Long Fiber Injection (LFI)

In the LFI (Long Fiber Injection) process, endless fiber from a roving is chopped to length in a cutter. A blower then separates the filaments. Immediately after the cutter, the fibers are wetted with the PU mixture from the mixing head.

Your benefits

  • First-class surfaces through simple combinations of methods (painting directly in the mold, thermoforming film, PVC film)

  • High component stability at simultaneously low component weight by using high fiber volumes, fillers or paper honeycomb

  • Variable fiber lengths 12.5 - 100 mm and fiber volumes up to 50%

  • Significant weight saving compared to SMC

  • High degree of automation with short cycle times

  • Moderate mold and system costs due to low clamping forces

  • Integration of loaders directly into the mold

Applications

Engine hood

Automotive - LFI process mixing head

Radiator grill for utility vehicle

Automotive - LFI mixing head, engine

Engine hood for combine harvester

Bus rear panel

Details

Process

Process

Features

Fiber content and length locally adjustable

Cost-effective original material, minimal scrap

Easy integration of loader (for example, of inserts and fasteners)

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