Air Expanding Shaft for Rotary Die Cutting Machine

The air expanding shaft is designed to securely hold cores of material rolls by expanding lugs or strips through compressed air. This mechanism ensures quick loading and unloading of rolls while maintaining strong and uniform clamping force during operation.

It is widely used in unwinding and rewinding systems of rotary die cutting machines, helping maintain stable tension and accurate material alignment.

Manufactured with high-strength steel and precision machining, the shaft offers excellent durability, wear resistance, and long service life. The internal pneumatic structure ensures reliable expansion and contraction, allowing efficient roll handling in high-speed production environments.

The air expanding shaft is suitable for various core sizes and can be customized according to different industrial requirements.

Product Features

• Strong and uniform gripping force
• Fast loading and unloading of material rolls
• Durable and wear-resistant structure
• Stable performance in high-speed production
• Compatible with various core sizes
• Easy operation with pneumatic control

Applications

The air expanding shaft is widely used in:

• Rotary die cutting machines

• Slitting and rewinding machines

• Label and packaging production

• Adhesive tape converting

• Film and paper processing

• Medical product manufacturing

• coffee filter production

FAQ – Air Expanding Shaft

1. What is an air expanding shaft?

An air expanding shaft is a pneumatic device used to hold and release material rolls by expanding its outer elements using compressed air.

2. What is the function of an air shaft in a die cutting machine?

It is used for unwinding and rewinding material rolls, ensuring stable holding, proper alignment, and smooth material feeding during production.

3. What core sizes are supported?

Common core sizes include 1 inch, 3 inch, and 6 inch, but custom sizes can also be manufactured based on customer requirements.

4. How does an air expanding shaft work?

Compressed air is supplied into the shaft, causing internal elements to expand and grip the core tightly. When air is released, the shaft contracts for easy removal.

5. How to maintain an air expanding shaft?

Regular inspection of air valves, seals, and expansion strips is recommended. Keep the shaft clean and ensure proper air pressure for optimal performance.

6. Can air shafts be customized?

Yes, air expanding shafts can be customized in length, diameter, expansion type (lugs or strips), and core size to match specific machine requirements.

The air expanding shaft works together with Tension Control System, Guide Shaft Assembly, and Rubber Roller to ensure stable material handling and precise die cutting performance.