A leaf type air adaptor is used to convert a standard air shaft into a larger core size, typically when you need to run different core diameters on the same machine. It works with flexible leaf segments that expand outward when air is supplied through the shaft, creating a firm and even grip inside the core.
In practical use, it is helpful in slitting and rewinding jobs where core sizes may change between 3 inch, 6 inch, or other dimensions. Instead of changing the full shaft, the adaptor can be mounted over the existing shaft, saving time during setup.
The leaf design ensures uniform expansion across the core surface, which helps avoid slipping or core damage at higher speeds. It is commonly used in paper, film, foil, and flexible packaging industries where quick changeovers and consistent tension are important.
