Abstract: A cutting unit (10) for industrial sectors, especially suitable for cutting of flexible or semi-rigid materials such as paper and cardboard, non-woven fabric, spunbond, spunlace and the like into strips of various widths, intended for example for the manufacture of hygienic products such as nappies, sanitary towels, face masks, as well as tissue, tape, packaging and cardboard cores, comprising a supporting structure or casing (12) paired with a flange (14) for supporting the cutting tool (16) consisting of a ring. That said motor is of the torque type in which the rotor (18) and the stator (20) are housed in a seat made along the front face of the casing (12) which is also provided with a housing (28) inside which the control drive (30) of said motor is positioned.

Abstract: A tool change device (12) for working apparatus (10) of longitudinal shearing machines adapted for working on paper, cardboard, plastic films, various coupled materials, aluminum, fabric, non woven, glass fiber, carbon fiber and similar materials, wherein mechanical elements are provided for quick coupling/centering and extraction with translatory movement between a tool or blade holder head (16) and a tool holder (28) and with provision for a direct and quick feed of compressed air.

Abstract: A tool change device (12) for working apparatus (10) of shearing machines, especially of the longitudinal type, apt to work on paper, cardboard, plastic films, various coupled materials, aluminium, fabric, non woven, glass fibre, carbon fibre and similar, comprising mechanical means for quick coupling/centring and extraction and with translatory movement between a tool or blade holder head (16) and a tool holder (28) and means for a direct and quick feed of compressed air.

Abstract: A tool holder (10, 10?) for shearing machines, especially of the longitudinal type, suitable for processing on paper, cardboard, plastic films, various laminates, aluminium, fabric, non woven, fibreglass, carbon fibre and the like, including a blade holder head provided with a preferably circular blade (12), partially protected by a casing (14) and rotatably connected to an elastically deformable arm (16) and to a bar (18) sliding according to a vertical direction, a further protection element for the same blade defined by a shaped plate (20) provided with a through opening (22), at least one piston (30, 32) for the up/down movement of the blade holder, with said bar (18) and said at least one piston (30, 32) arranged and moved in a chamber (23) of a support body (24), the tool holder further includes an element suitable for allowing an anti-rotation of the bar (18) with zero clearance, an adjustment of the shearing angle, an axial adjustment of the same bar and of the down stroke of the tool or blade (12).