Leaf Type Air Shafts from ATEM

ATEM leaf type air shafts use long expanding shells or segments that contact a large area of the core’s inner surface. A leaf type air shaft therefore distributes the gripping force more evenly than a design with individual lugs or short expanding elements.

When are Leaf Type Air Shafts recommended?

ATEM normally recommends this solution for coreless materials and thin or sensitive cores that could be deformed or damaged by concentrated pressure.

A leaf type air shaft is suitable when the roll needs support across a large contact area or when the core cannot withstand high point loading. The design can also be useful when the application requires good roundness and stable centering.

• Thin-walled cardboard or plastic cores
• Coreless rolls and specialist winding processes
• Sensitive cores at risk of deformation
• Applications requiring even pressure distribution