An embossing assembly for sheet material includes at least two embossing rollers, the ends of which are rotatably mounted in the side panels of an embossing machine. Each of the side panels is divided into a fixed portion and at least one movable portion. The ends of the embossing rollers are mounted in supports which are removably fixed in seats formed in the fixed portions of the side panels or in the movable portions of the side panels of the machine. In this manner, when the movable portions of side panels are moved with respect to the fixed portions of side panels, a space is cleared for removal of at least a portion of the embossing roller supports.