Suitable for balancing rotors with a certain axial length and weighing between 10 g and 100,000 kg. The power transmission required for the rotation of the piece to be balanced is essentially obtained with two drive systems: belt or joint. The two types of drive can be coupled, significantly increasing the field of use and practicality of the machine.

All machines in the Z series have rigid supports and guarantee immediate calibration based solely on the dimensions of the rotor. In fact, once the correction planes have been chosen, it is sufficient to set the distances of said planes from the respective supports, the distance between said planes and the correction radii on the machine.