Material edge sensor fi20x145mm electric

Material edge sensor fi 20 x 145 mm For precise determination of the edge of the workpiece - setting zero - centering .Indispensable for machine tools with position reading system. Made of high quality alloy steel.Mounting diameter fi 20 mm, ball diameter 10mm. Hardness of the ball- HRC 60 .Accuracy - repeatability - 0,01 mm. Light and acoustic signal on contact with the work surface. The sensor works on the principle of closing an electrical circuit between the spindle and the centering workpiece. Upon contact with the metal, it gives a light and acoustic signal, while the steel ball is mounted on a spring, protecting it from damage if it gets too close to the edge. To set the zero point should be corrected by the value of the radius of the ball.The sensor in the set includes power batteries.