Operating range

  • Usage within shaftless winders and as a trunnion for cantilevered reel take-up
  • Appropriate for automatic use
  • For any type of cores ≥ Ø 100 mm
  • Exceptionally core-friendly torque transmission

Characteristic features

  • Flexible protective covering for a higher grip and prevention against the ingress of impurities
  • Low maintenance
  • Easily pneumatically actuated
  • Mechanically-concentric expansion for reel take-up
  • Robust construction for a long serviceable life
Characteristic features
  • Pneumatically generated pushing force by means of pneumatic cylinder or pneum.-hydr. amplifier
  • Mechanically-concentric expansion movement of the protective covered expansion segments by means of principle of incline
  • Spring-assisted restricted reset of the covered expansion segments
  • Exchangeable protective-covering made of polyurethane
  • Covered expansion mechanism prevents the ingress of impurity
  • General, customized construction in a modular design
  • Options: core extractor, contact ring
Expansion method - Mechanic-centrical
Protecting covering
Winding cores
Any kind as e.g. cardboard, plastic, metal;
especially for a take-up of thin and sensitive cores
Nominal diameter - Winding core ≥ 100 mm
Slit with of multi-reels - minimum
(only for winding trunnions)
Reel take-up -  multi-reel (slit width ≥ 100 mm) ≥ 100 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. Protection covering
    4. Clamping shell
    5. Gripping jaw
    6. T-ramp
    7. Reset spring
    8. Pneumatic cylinder
    9. Pneumatic piston
    10. Sealing elements

    3D Sectional view, Winding Chucks and Winding Trunnions, Serie 3380

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