Series 416 mechanical expansion shaft

Series 416 Mechanical Expansion Shaft: Robust, Reliable, and Ready for Demanding Winding Tasks

The Vorwald Series 416 mechanical expansion shaft sets the benchmark for durability and performance in web handling applications. Designed as a standard solution with modular adaptability, this shaft excels across a wide range of industries requiring secure, precise, and high-speed winding of materials.

Durable Design with Versatile Expansion Lug Options

At the heart of the Series 416 is its rugged construction and proven functionality. Customers can choose between two expansion lug types to match their core material and operational demands:

• Lengthwise grooved steel lugs for maximum torque transmission with cardboard cores
• Smooth-surfaced polyurethane lugs ideal for steel and plastic cores

All expansion lugs are equipped with leg springs, ensuring automatic retraction into the shaft body for easy core mounting and removal.

Superior Clamping Through Smart Mechanics

The Series 416 operates on a time-tested mechanical principle: the inclined plane. Actuation via a tightening screw pushes a conical element under the lugs using a threaded rod. As the cone and lugs share the same bevel, this results in a radial expansion that clamps the core with exceptional force. Importantly, this design guarantees absolutely concentric clamping, which is essential for maintaining high winding speeds and superior web control.

Fully Customisable to Your Needs

Vorwald engineers the Series 416 to your exact specifications:

·        Core diameters from 50 mm to 500 mm

·        Shaft bodies in various materials and wall thicknesses

·        Optional configurations including:

o   Axially mounted expansion screw

o   Radial expansion nut or screw

o   Cantilevered versions with one-sided bearing

o   Special dimensions on request

Multiple actuation methods are available depending on your application needs – from internal clamping screws to external clamping nuts.

Key Advantages at a Glance

• High load capacity for large and heavy reels
•  Concentric clamping for optimal web tracking and speed
• Excellent torque transfer for demanding applications
• Low maintenance and user-friendly design
• Highly customizable modular system

The Vorwald Series 416 mechanical expansion shaft is your reliable partner in modern winding and unwinding processes, offering strength, simplicity, and smart engineering. Whether you’re dealing with heavy reels or high-speed lines, this expansion shaft delivers the performance you need with the flexibility to adapt to your operation.