Sawing machine can be divided into cold sawing machine and hot sawing machine. Cold sawing machine is widely applied in all kinds of steel rolling workshop and hot extrusion workshop and is set up after the completion of the rolling mill, used for rolling length cutting, cutting head and tail.

When a cold saw machine is cutting on high temperature the work piece material changes; Sawing machine’s simple operation and high efficiency will not appear in the process of cold sawing machine work dust, spark energy saving and environmental protection. With the improvement of technical level sawing machine is widely used and sawing technology has made great development. Especially on the cross section of enterprise quality and the accuracy of the scale put forward higher requirements then large steel enterprises to adopt cold saw cutting and functions of the application of cold sawing machine is wide. The development of cold cutting machines is to replace the hot sawing machine.

From the last century, metal cold cutting technology has gradually developed. Because of the cold metal cutting quality and the good characteristics of high precision, the technology gradually popularized in large foreign industrial countries. The rapid development of steel industry also saw the progress of the industry and metal cold cutting circular saw blade gradually by the small diameter of big diameter. Since China's reform and opening up, China's iron and steel industry development by leaps and bounds, the domestic research of metal sawing machine also gradually rise. For domestic use of the metal sawing machine are all imported from abroad. Sawing industry development, domestic steel mills cooperative enterprises and research institutions to make cold metal cutting technology in China to rise. China's first cold saw is the success of metallurgical equipment manufacturing plant in Jilin and domestic metal circular saw blade can meets the requirement of iron and steel enterprises.