• Operating range
  • Usage within shaftless winders and as a trunnion for cantilevered reel take-up
  • For any type of cores ≥ Ø 50 mm
  • For a take-up of thin and sensitive cores

Characteristic features

  • Mechanically-concentric expansion
  • Robust long-life-construction
  • Simple maintenance
  • Easily exchangeable clamping shells
  • Low costs of spare parts
Characteristic features
  • Pneumatically generated pushing force by means of pneumatic cylinder or pneum.-hydr. amplifier
  • Mechanically-concentric expansion movement of clamping shells by means of principle of incline
  • Spring-assisted restricted reset of clamping shells
  • General, customized construction in a modular design
  • Compatible with automatical usage
  • Options: Core extractor, contact ring, protective covering
Expansion method - Mechanic-centrical
Gripping jaw
Winding cores
Any kind as e.g. cardboard, plastic, metal
Nominal diameter - Winding core ≥ 50 mm
Slit with of multi-reels - minimum
(only for winding trunnions)
Reel take-up - Narrow reels ≥ 10 mm
Concentricity for winding Concentric tolerance ≥ 0,2 mm
Actuation tools
  • Air-pistol, deflation tool
  • Permanent air-supply
  • Actuation method - Pneumatic
    Optional: Spanntec CMS (Condition Monitoring System)
    Digital system for condition monitoring of reel tightening units which ensures maximum process reliability More information
    Spanntec CMS Icon mit Netz schwarz


    1. Chuck housing
    2. Chuck
    3. Clamping shells
    4. Gripping jaw
    5. T-ramp
    6. Reset spring
    7. Pneumatic cylinder
    8. Pneumatic piston
    9. Sealing elements

    3D Sectional view, Winding Chucks and Winding Trunnions, Serie 3340

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