“KW14-158” semiautomatic cutter is made of A-alloy. The machine has two groups of speed change. It uses SCR to control speed. There are roller wheels on bottom of body. So, it is easy to move. The reducing box is used to change the speed to make the axis revolve. You can adjust the radius of cutting circle. It can cut on vertical steel plate and inclined plane. The machine improves efficiency, assures the quality and decreases the working strength.