Triaxial labelling machine comprising: - two longitudinal lateral guides ; - a transversal carriage movable along said longitudinal lateral guides ; - a label applicator movable along a transversal guide , carried by said transversal carriage , and provided with an actuator for moving a pad along a direction perpendicular to said longitudinal and transversal guides ; - a first motor fixed on a frame of the labelling machine and provided with a first speed reducer ; - a toothed belt driven by said first speed reducer and wound on a first toothed pulley longitudinally aligned with said first speed reducer ; and - a control unit operatively connected to control the operation of said first motor and of said actuator for moving said pad ; characterized in that the labelling machine further comprises: - a second motor fixed on the labelling machine frame and provided with a second speed reducer ; - a second toothed pulley longitudinally aligned with said second speed reducer ; and - a pair of deflection rollers longitudinally spaced and preferably aligned, arranged at each end portion of the transversal carriage ; and in that said toothed belt extends in a loop being wound in sequence around the first speed reducer , a first front deflection roller adjacent thereto, a second front deflection roller , the second speed reducer , the second toothed pulley , a first rear deflection roller adjacent thereto, a second rear deflection roller , and the first toothed pulley , and in that said label applicator is fixed to the toothed belt in one of the two sections between the deflection rollers , and in that said control unit is operatively connected to said second motor so as to control the simultaneous operation of the two motors . - two longitudinal lateral guides ; - a transversal carriage movable along said longitudinal lateral guides ; - a label applicator movable along a transversal guide , carried by said transversal carriage , and provided with an actuator for moving a pad along a direction perpendicular to said longitudinal and transversal guides ; - a first motor fixed on a frame of the labelling machine and provided with a first speed reducer ; - a toothed belt driven by said first speed reducer and wound on a first toothed pulley longitudinally aligned with said first speed reducer ; and - a control unit operatively connected to control the operation of said first motor and of said actuator for moving said pad ; characterized in that the labelling machine further comprises: - a second motor fixed on the labelling machine frame and provided with a second speed reducer ; - a second toothed pulley longitudinally aligned with said second speed reducer ; and - a pair of deflection rollers longitudinally spaced and preferably aligned, arranged at each end portion of the transversal carriage ; - a second motor fixed on the labelling machine frame and provided with a second speed reducer ; - a second toothed pulley longitudinally aligned with said second speed reducer ; and - a pair of deflection rollers longitudinally spaced and preferably aligned, arranged at each end portion of the transversal carriage ; and in that said toothed belt extends in a loop being wound in sequence around the first speed reducer , a first front deflection roller adjacent thereto, a second front deflection roller , the second speed reducer , the second toothed pulley , a first rear deflection roller adjacent thereto, a second rear deflection roller , and the first toothed pulley , and in that said label applicator is fixed to the toothed belt in one of the two sections between the deflection rollers , and in that said control unit is operatively connected to said second motor so as to control the simultaneous operation of the two motors . <EOS>