Frame saw tensioning device for stone working having a protective cover for the sealing bellows of the tensioning piston

摘要

Hydraulic frame saw tensioning device for tensioning saw blades for cutting stone blocks, having a double-acting sealing system, such that hermetic sealing of the piston circumferential surface with respect to the hydraulic saw tensioning device is obtained by means of a flexible bellows (3) which for its part is protected from the outside against damage by means of a harder protective cover (2) surrounding it, this protection being both in the axial and radial piston direction. IMAGE