Automatic polishing machine for granite/marble SPG1200-20 SPG series granite automatic grinding machine is a granite stone grinding and polishing equipment with advanced level at home and abroad, which is developed and manufactured by itself on the basis of absorbing the advantages of similar products at home and abroad. The industrial design of the whole machine guides the industry trend. The grinding and polishing efficiency and grinding and polishing quality are at the leading level among similar products at home and abroad, and the work is stable and reliable. It is the preferred equipment for automatic grinding and polishing of granite stone. Suitable for surface polishing of granite. The PLC intelligent control system is adopted, and the man-machine dialogue is carried out through the LCD touch screen to realize intelligent control. Equipped with automatic grinding head avoidance and plate shape memory functions, and equipped with conveyor belt anti-beating device, the whole machine has a high degree of automation, and the labor intensity of workers is low. Equipped with a special granite grinding head, the polishing efficiency and polishing quality are high, and the consumption of abrasives is greatly reduced. The material selection is excellent, the structure is reasonable, the processing technology is perfect, the whole machine has strong rigidity and stable performance. Grinding heads, headstocks, slide cylinders and key bearings all use automatic lubrication systems. The power transmission of the grinding head adopts a narrow V-belt with teeth, which greatly reduces the power loss and improves the service life.