Is an elastic belt grinding grinding, is a kind of grinding, grinding, polishing multiple roles of complex processes. On the abrasive belt having a greater capacity than the cutting wheel abrasive grains, so its grinding efficiency is very high. Belt grinding efficiency performance in its removal rate, the grinding ratio (removal workpiece weight to weight ratio and abrasive wear) and three machine power efficiency are high. Currently known belt grinding steel cut has reached 700mm3 / mm · s, even more than the turning or milling. Belt grinding ratio much higher than the wheel, up to 300: 1 or even 400: 1, and the wheel was 30: 1. Belt grinder power efficiency, the belt grinding away in the early stages of development had reached 80 percent, ahead of other machine tools, and now it is up to 96%, compared with only 52% of the wheel grinder, milling machines 57%, 65 lathe %, so still a good belt grinding energy processing technology.