Suitable for air shafts. The width of the sleeve can reach 3000mm/118inch, and the outer diameter of the sleeve is not limited; Only clean and dry compressed air at 0.6~0.8Mpa/6~8 bar is needed; Easy to operate, sturdy in structure, and small in footprint, it is an essential specialized tool for loading and unloading sleeves. (Customized according to the customer’s specifications for the air shaft head)