Machine for cutting panels, such as panel made of wood, materials obtained from wood or wood-like materials, fiberglass, plastic and the like, comprising: a supporting frame having a horizontal supporting plane for receiving a first and a second panel to be cut; a cutting station movable along a cutting direction for cutting said first and said second panel; first supplying means for supplying said first panel on said supporting plane along a supplying direction perpendicular to said cutting direction, said first supplying means comprising a first supporting system coupled to said frame, in a sliding way along said supplying direction, a plurality of first clamps for clamping said first panel, coupled to said first supporting system, so as to slide above said supporting plane defining a first working area, second supplying means for supplying said second panel on said supporting plane along said supplying direction, said second supplying means comprising a second supporting system coupled to said frame, in a sliding way along said supplying direction, a plurality of second clamps for clamping said second panel, coupled to said second supporting system, so as to slide above said supporting plane defining a second working area, wherein at least one subset of said plurality of first clamps is movable with respect to said first supporting system parallel to said cutting direction, and wherein said first working area has, in plan, a first width variable according to the position of said plurality of first clamps with respect to said first supporting system, wherein said cutting machine is characterized in that at least one subset of said plurality of second clamps is movable with respect to said second supporting system parallel to said cutting direction, in that said at least one subset of said plurality of second clamps is movable by means of second actuator means, so that said second working area swept by at least one subset of said plurality of second clamps is varied, and wherein said second working area has, in plan, a second width variable according to the position of said plurality of second clamps with respect to said second supporting system, such that said second width is, therefore, a function dependent on the area of said supporting plane swept by said plurality of second clamps, or rather on the position of said plurality of second clamps on said second supporting system. a supporting frame having a horizontal supporting plane for receiving a first and a second panel to be cut; a cutting station movable along a cutting direction for cutting said first and said second panel; first supplying means for supplying said first panel on said supporting plane along a supplying direction perpendicular to said cutting direction, said first supplying means comprising a first supporting system coupled to said frame, in a sliding way along said supplying direction, a plurality of first clamps for clamping said first panel, coupled to said first supporting system, so as to slide above said supporting plane defining a first working area, second supplying means for supplying said second panel on said supporting plane along said supplying direction, said second supplying means comprising a second supporting system coupled to said frame, in a sliding way along said supplying direction, a plurality of second clamps for clamping said second panel, coupled to said second supporting system, so as to slide above said supporting plane defining a second working area, wherein at least one subset of said plurality of first clamps is movable with respect to said first supporting system parallel to said cutting direction, and wherein said first working area has, in plan, a first width variable according to the position of said plurality of first clamps with respect to said first supporting system, wherein said cutting machine is characterized in that at least one subset of said plurality of second clamps is movable with respect to said second supporting system parallel to said cutting direction, in that said at least one subset of said plurality of second clamps is movable by means of second actuator means, so that said second working area swept by at least one subset of said plurality of second clamps is varied, and wherein said second working area has, in plan, a second width variable according to the position of said plurality of second clamps with respect to said second supporting system, such that said second width is, therefore, a function dependent on the area of said supporting plane swept by said plurality of second clamps, or rather on the position of said plurality of second clamps on said second supporting system.