- Core Chucks
- Core Shafts
- Safety Chucks
- Roll Stands and Processing Modules
- Brakes / Brake Pads
- Core Cutters
- Reel Spools / Reel Spool Shafts
- Slitting Systems / Knife Holders / Slitting Accessories
- Core Plugs
- Web Guides
- Web Tension Control Systems
- Rotary Unions
Pneumatic/Mechanical Lug Shaft Components
True concentric expansion for high–speed and/or heavyweight winding applications. Mechanical fail-safe operation and positive lug retraction.
- Custom journals.
- Corrosion-proof air valve can be located on side or at end of pneumatic mechanical shaft.
- Center rod.
- Tempered steel housing.
- Hardened steel lugs provide reliable grip force on all core types.
- Individual cam springs force independent lug rise; shaft grips consistently even when core diameter varies.
- Proprietary fasteners with hardened steel expanding bushings provide strong connection without requiring a press fit
- Jacking screw at shaft end serves as mechanical override (pneumatic mechanical shaft).
PM-1000 Pneumatic/Mechanical Lug Shafts
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.
MS-1000 Fully Mechanical Lug Shafts
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
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.
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.
You Might Also Be Interested In...
Expanding Air Shafts - Lug Shafts
Air shafts are available in steel, aluminum, or lightweight carbon fiber; suitable for all types of winding applications.
Carbon Fiber Expanding Core Shafts
Carbon fiber core shafts minimize shaft weight without sacrificing strength or stiffness; perfect for unwind and rewind converting applications.
Arbres et Embouts à Réglettes pneumatiques STSR et SRC
Le STSR est un arbre à réglettes multi-vessies pour l'enroulage de multi-bobines, il peut être également utilisé pour le déroulage d'une bobine unique.
Receive a Free Quote