The plasma metal cutting machine is gantry type structure. The cross beams treated by whole annealing to eliminate stress, so the plasma metal cutting machine has good rigidity and high strength without permanent deformation. The plasma metal cutting machine can be flame cutting and plasma cutting. The plasma metal cutting machine has the basic characteristics of high quality, high precision, strong operability, and at the same time has the cutting accuracy comparable to laser cutting but the price is better than the laser cutting machine. Therefore,the plasma metal cutting machine is widely used in various industries, suitable for carbon steel (flame cutting), stainless steel, copper, aluminum (plasma cutting) And other sheet metal cutting and raw material cutting work.