Hydrostatic Spindles

Ultra-precision universal hydrostatic spindles can handle OEM milling, turning, and grinding; after-market automotive precision boring applications; and precision optics, among other applications.

Available with either a built-in motor or external drive, the spindles are said to combine large cutting forces at low spindle speeds with high accuracy productivity at high spindle speed. They range from units with a sleeve diameter of 80-mm and maximum speed of 80,000 rpm to large units with a sleeve diameter of 280-mm and max speed of 15,000 rpm. The same spindles can be used for roughing, semi-finishing, and finishing. All have a high resistance to overloading and crashes.

According to the manufacturer, the spindles' rotational accuracy is within 1 µm. Grinding applications can expect a rotational accuracy of less than 0.08 µm, and a synchronous error motion within 0.03 µm. The units' high static stiffness and good vibration resistance are said to result in high accuracy and excellent surface finish.

Moore Tool Co., 800 Union Avenue,PO Box 4088, Bridgeport, CT 06607. Tel: 203-366-3224. Fax: 203-367-0418.