H P Machine & Engineering Inc, 2150 Oakland Rd, San Jose, CA 95131, US

Surface Engineering brings to the market over 30 years of custom design, extremely close tolerance grinding and assembly experience on precision rotary spindles. Our products incorporate ball and/or air bearing structures with DC and AC brushless servo motors. The typical speeds range from 10 to 10, 000 RPM with speeds of over 30, 000 RPM possible. Surface Engineering can provide DSP based motor control & drive systems for speed control of +/- 1 RPM at 5, 000 RPM. State of the art design, manufacturing and inspection capabilities allow spindle errors of 0.5 microns and asynchronous errors of 0.25 microns.