SQC-450/600/700-4D 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, adjusts the speed according to the stone material. It uses hydraulic lifting system, combination of Chrome-plated guide pin and wear guide bush, with small gap, wearable, beautiful structure, and Guide Sleeve with multi-layer seals, with waterproof, dustproof , anti-spill, improving the service life. Main spare parts adopt imported good-quality materials. Thus the whole machine is featured with high cutting efficiency, high cutting precision , high stability, easy –operating to suit granite and marble with high value and big size.