... milling,etc. Numerical control machine spindles includes ADS,ADP series for numerical control milling and machine centre. Electric grinding spindles have ... , ADW, ADL, ADQ. AD seriesare applied in the grinding below a speed of 40min/s of the grinding wheel.ADW,ADL,ADQ are separately ... applied in grinding at a speed of 50min/s,60m/s and 70m/s. Among them ADQseries is a kind of high ...