SQC-450/600/700-4D (Guide Post Type) uses PLC system and Human-machine interface, combined with Ultra-high precision rotary encoder to locate and infrared device, uses inverter to control left-right feeding, adjusting the speed according to the stone material. It uses hydraulic lifting system, combination of Chrome-plated guide post and wear guide bush, with small gap, make it wearable and beautiful. The guide sleeve with multi-layer seals, which prevent water, dust and oil spilling, improving the service life. The key part  adopt imported good-quality spare parts. Thus the whole machine is featured as high cutting efficiency, high cutting precision, high stability, easy –operating to suit specially cutting graite and matble with high value and big size.