The machine has the structure of cantilever with the plasma source loaded on it,which overcome the limitation of the length of the power cord of the plasma sourse,without the disadvantage of the cutting length is restricted by the position of the plasma sourse.The cutting table be drawed out easily under the cutting arm,which are safer for the cutting enviroment.The cutting torches are protected by the initial locating device and are voltage height control system,which have the advantage of avoiding impact of 360 degrees.