Series A expansion shaft

Reliable Performance Meets Flexible Design

The Vorwald Pneumatic Expansion Shaft – Series A is the standard in high-performance winding and unwinding applications. Engineered with individual expansion ledges, this shaft series combines reliability, customization, and ease of maintenance, making it suitable for nearly all industrial winding systems.

Three Expansion Ledge Types for Optimal Grip
Depending on your application, the Series A offers three types of expansion ledges:

• Aluminium with lengthwise grooves – ideal for high torque transmission on cardboard cores
• Steel with lengthwise grooves – offering the highest torque stability for heavy-duty use
• Polyurethane with a smooth surface – best for steel or plastic cores

All ledges are precision-crafted with a bevelled guiding angle, allowing quick, effortless push-on and push-off of material cores.

Tailored to Your Core Diameter
Vorwald Series A shafts are available for core diameters from 12.5 mm to 300 mm, with the number and positioning of ledges configured per your specific needs. Whether you’re working with narrow webs or variable core sizes, the modular design makes custom solutions easy.

User-Friendly, Maintenance-Focused Design
One of the Series A’s key innovations is the journal design: instead of traditional set screws, journals are attached with high-precision screws. This ensures:

• Positive fit
• Easy disassembly
• Compatibility with other Vorwald journals

When bladder issues arise, Vorwald’s internal construction allows repairs in just minutes. With a ready-to-use repair kit or inner assembly on hand, downtime is reduced to a minimum.

Options to Enhance Your Workflow

• WR: Extended expansion range for multiple core sizes
• OL: Overlapping ledges for narrow web winding
• CB: Core centering via shaft body
• CE: Additional ledges for advanced centering
• Custom sizes: Available upon request

Key Benefits

• Modular construction simplifies servicing
• Resistant to dirt accumulation
• Supports high-speed rotation
• Fast, easy repairs
• Wide variety of sizes and configurations

The Vorwald Series A pneumatic expansion shaft is more than a component—it's a durable, adaptable solution for core handling in demanding production environments. With fast changeover capabilities, versatile configuration options, and minimal maintenance requirements, it’s the smart choice for manufacturers who prioritize uptime and precision.