This machine is used to eliminate in a mechanical way the suckers at the beginning of vegetative period. The heads can be length 100 or 80 cm and must be combined with frames of different dimensions as follow : - frame for a single head ( to work only one side therefore it will be necessary two ways to complete a row. -central frame with two heads: to work two half rows in a way (one on the right and one on the left) . -tunnel frame : frame steps over two heads mounted in a opposite side (it could be preview as accessory to insert into the machine some automatic working sensors to maintain a constant height from the ground)