As long as the guide rails of the equipment are grinded and scraped by hand, the main moving parts are heat treated strictly accordingly. The lubrication of the guide rails of the Kaifeng and the side beams is oil-penetration type, and the cutting speed is controlled by frequency conversion, realized stepless speed regulation cutting, head lifting, table turning, rotation and positioning are hydraulic transmission, key parts using high-quality spare parts, the machine adopts PLC programmable control system and touch screen operation interface. The machine has good rigidity, high working precision, stable operation and long service life