Eixos de enrolamento e espigões de fixação ativados por ar comprimido são usados para fixar o núcleo para os processos de enrolamento e desenrolamento. Os elementos de fixação expandem-se ou contraem-se em resposta ao ar comprimido.

Series 409 pneumatic expansion shafts enable rolls of any width to be clamped securely by means of expanding ledges, offer high torques and load capacity, and can be flexibly customised for various applications.

Standard shaft with flat bladders and a low dead weight

The leaves enable winding with thin cores. Coreless winding with web start clamping is also possible.

Standard shaft with central bladder

For higher reel weights and torques