Cost-effective middle end grinder Working Accuracy: 0.75 um roundness, 0.08 um surface finishness; Cylindricity 2 um Servo motor variable speed control from 13 to 320 RPM can be used to adjust the ideal linear speed. When diameter of regulating wheel changes the same linear speed can still be maintained. The grinding and regulating wheel spindles are made of high quality alloy steel, case-hardened and carborizedj with HRC62'above surface hardness, which are perfect for intensive grinding at high[...]

Original design, self-developed and manufacturerd Working accuracy 0.75 um roundness, 0.08 um surface roughness[...]