Handling machine comprising: a principal body, a handling arm designed to receive a load to be shifted, an actuating device designed to execute a movement of the handling arm relative to the principle body, a control member that can be actuated by a user to produce a movement request signal designed to instruct the actuating device such as to cause execution or to cause halting of a movement of the handling arm by the actuating device in response to the movement request signal, the movement request signal having an attribute representative of a speed of the movement to be executed, it being possible for the control member to be actuated by the user to set the attribute of the movement request signal amongst a plurality of attribute values representing, respectively, a halt state and a plurality of speed values, and a command unit designed to command the actuating device, characterized in that the command unit is designed to compare a value representative of the speed of movement executed or to be executed in response to the movement request signal with a threshold representative of an authorized maximum speed and to command the actuating device as a function of the result of said comparison, in such a manner as: to execute or to continue the movement of the handling arm for as long as the value representative of the speed of the movement executed or to be executed is below said threshold, and to prevent or to stop the movement of the handling arm as soon as the value representative of the speed of the movement executed or to be executed is above said threshold. a principal body, a handling arm designed to receive a load to be shifted, an actuating device designed to execute a movement of the handling arm relative to the principle body, a control member that can be actuated by a user to produce a movement request signal designed to instruct the actuating device such as to cause execution or to cause halting of a movement of the handling arm by the actuating device in response to the movement request signal, the movement request signal having an attribute representative of a speed of the movement to be executed, it being possible for the control member to be actuated by the user to set the attribute of the movement request signal amongst a plurality of attribute values representing, respectively, a halt state and a plurality of speed values, and a command unit designed to command the actuating device, characterized in that the command unit is designed to compare a value representative of the speed of movement executed or to be executed in response to the movement request signal with a threshold representative of an authorized maximum speed and to command the actuating device as a function of the result of said comparison, in such a manner as: to execute or to continue the movement of the handling arm for as long as the value representative of the speed of the movement executed or to be executed is below said threshold, and to prevent or to stop the movement of the handling arm as soon as the value representative of the speed of the movement executed or to be executed is above said threshold. to execute or to continue the movement of the handling arm for as long as the value representative of the speed of the movement executed or to be executed is below said threshold, and to prevent or to stop the movement of the handling arm as soon as the value representative of the speed of the movement executed or to be executed is above said threshold.