Series MB expansion shaft

Pneumatic Expansion Shaft Series MB – Light, Strong, and Exceptionally Versatile

Vorwald's Pneumatic Expansion Shaft Series MB is the ideal solution for a broad range of winding and unwinding applications, from the narrowest webs to wide reels. Designed for maximum flexibility and ease of use, this expansion shaft combines intelligent design with high-quality materials to deliver reliable, cost-effective performance across industries.

Engineered for Flexibility and Durability

The Series MB stands out thanks to its continuous expansion ledges, allowing it to securely clamp reels of various widths. Whether you're handling delicate film or wide rolls of paper, this shaft adapts seamlessly to your process.

At the core of its design is an aluminium extrusion profile that delivers an optimal strength-to-weight ratio. This lightweight construction not only simplifies handling and changeovers but also reduces strain on your machine, making it a compelling alternative to significantly more expensive carbon-fiber shafts.

Modular Construction for Customisation and Maintenance

Built with a modular design, the MB shaft makes it easy to replace wear parts and adapt components to specific needs. The steel shaft journals, securely attached via screw connections, can be quickly replaced, reducing downtime during maintenance.

Thanks to multiple flat bladders that are accessible from the outside, maintenance is simplified, and operational efficiency is enhanced. The expansion ledges can also be tailored – with options in polyurethane, aluminium, or plastic – depending on your required clamping strength or web material.

Designed to Fit Your Application

The MB shaft is available in standard diameters of 75 mm (3") and 150 mm (6"), with custom diameters ranging from 12.5 mm to 300 mm offered upon request. Additional options such as filling valves on both ends, wear-resistant coatings, and quasi-centering systems matched to your core’s inner diameter further enhance its adaptability.

Key Advantages at a Glance:

• Modular construction for easy adaptation and part replacement
• Lightweight aluminium body for effortless handling
• Secure clamping, even for the narrowest webs
• Compatible with high rotation speeds
• Available in a wide range of diameters (12.5–300 mm)
• Custom configurations available on request

Whether you're upgrading your winding equipment or seeking a lightweight and flexible shaft for demanding production environments, the Vorwald Series MB pneumatic expansion shaft delivers a winning combination of strength, simplicity, and smart design.