Expanding Shafts for Extrusion and Reel Management

Expanding Shafts for Extrusion: Main Features

In extrusion lines, expanding shafts are used to facilitate quick reel changes, reduce downtime, and improve production efficiency. Their structure allows radial expansion that ensures uniform grip on the reel’s internal diameter, preventing slippage or misalignment.

The main types include:

• Pneumatic shafts: expand using compressed air, ideal for applications requiring quick installation and secure clamping.
• Reel holder shafts: specifically designed for winding and unwinding plastic film reels, with high load capacity and durability.

Benefits of Using Expanding Shafts

• Quick reel change: the expansion system allows reel replacement in seconds, without the need for tools.
• Better tension control: they help maintain constant tension during winding or unwinding, crucial for extruded film quality.
• Film protection: prevent damage to reel edges through soft and distributed grip.
• Increased productivity: by reducing setup times, they increase effective production time.