Special Machines and Plants
Automated Processing of Technical Textiles

Tufting head RS 522

Tufting of composites

The tufting head is forming a seam with a single thread method by one needle. This needle penetrates the material and inserts the thread forming a loop at the lower end of the needle position. The loop can be placed either within or outside the material. The tufting head works on virtually all composites (carbon fibres, glass fibres, aramid), such as profile or stringer, even complex 3D-parts.

Tool changer:
The tool changer allows fast and easy interchanging of different end effectors as well as electrical and pneumatical interfaces for specific signals at one robot stitching system.

One tool changer is required at the robot and one at each end effector.



    • Designed for production of sub-preforms and preforms. Typical fields of application are aerospace, automotive, wind energy, bridge building or industrial lightweight construction.



    • Electronically controlled stitching tool timing (for needle, sewing food and robot movement compensation)
    • Thread cutting
    • Thread consumption measurement (available as option)
    • Number of needles: 1 KSL special tufting needle
    • Seam upper side: double lock stitch (no interlaces and interloops)
    • Seam lower side: open thread loop
    • Stitch type: tufting technology
    • Thread: 1 k roving (max. 2 k roving based on actual process ability)
    • Stitch length 3 - 18 mm
    • Material thickness: 2 - 35 mm
    • Needle size: NM 250
    • infeed angle: 90° and adjustable from 45° to 135° by individual sewing head orientation (reduced material thickness at angles lower or higher than 90°)
    • Sewing pad: injection mould, foam (minimum thickness of foam at bottom required approx. 25 mm)
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