... sales of various types of motor spindles, machine tool spindles, and woodworking machinery spindles. Features ... motors in the above chart are same series. They are both ATC type. 2) ... . 3)Collect size has BT series, HSK series,and ISO series. 4)The weight is light, ... machine in this part, please feel free to contact me. Professional manufacturer! ATC spindle motor with encoder for milling, machine center ...