MS-1000 Fully Mechanical Lug Shaftsexpansiones totalmente mecanicas

  • Mechanical operation for strongest grip.
  • Intended for aggressive applications where rolls are heavy and line speeds are fast.
  • Independent lug action accommodates core variations.
  • Concentric expansion reduces vibration and roll bounce.
  • Roll security is guaranteed because of fail-safe design.

The MS–1000 mechanical shaft provides the best gripping force of any core shaft available today. It is designed with greater structural strength and a powerful expansion mechanism to handle the heaviest roll weights at high speeds. No compressed air is needed to operate this mechanical shaft, yet expansion and retraction is easily accomplished with just five (or fewer) turns of the activating screw.


PM-1000 Pneumatic/Mechanical Lug Shaftsexpansiones y retracción

The PM–1000 pneumatic mechanical shaft utilizes a unique “air-down” gripping system which combines the benefits of concentric expansion with the convenience of air retraction. Lugs grip the core automatically when the shaft is vented; lugs collapse when air is added.



Lug Pneumatic/Mechanical Shaft Components

ejes de retracción



eje expansion totalmente mecanica




  1. Custom journals.
  2. Corrosion-proof air valve can be located on side or at end of pneumatic mechanical shaft.
  3. Center rod.
  4. Tempered steel housing.
  5. Hardened steel lugs provide reliable grip force on all core types.
  6. Cams.
  7. Individual cam springs force independent lug rise; shaft grips consistently even when core diameter varies.
  8. Pistons
  9. Proprietary fasteners with hardened steel expanding bushings provide strong connection without requiring a press fit
  10. Jacking screw at shaft end serves as mechanical override (pneumatic mechanical shaft).

Features and Benefits

PM (Pneumatic/mechanical shafts) and MS (mechanical shafts) share many important and distinct characteristics which become especially beneficial when web speeds are fast and roll weights are heavy.

  • True Concentric Expansion.
    • Mechanical activation locks gripping lugs in the expanded state, actually lifting and centering the roll. This true concentric expansion minimizes roll bounce and vibration – even in high-speed and/or heavyweight applications.
  • Fail–safe operation.
    • With lugs mechanically locked, the shaft cannot stop gripping during production.
  • Independent lug action.
    • Each lug set is activated by separate cam springs, allowing the core shaft to grip uniformly even when core variations are present, or when cores aren’t covering all lug sets.
  • Proprietary journal connection.
    • Proven “scrivet fastening system” ensures durability at journal connections without requiring a press fit.
  • Positive lug retraction.
    • The mechanical system ensures lugs retract fully so shaft never sticks in cores.

Datasheet MS1000-PM1000

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