Product Description:

The MAC63A-0-RS-4-C/95-B-0/WI517L/S01 is an AC servo motor built by Bosch Rexroth Indramat for the MAC AC Servo Motors series. As a motor for analog drives, it delivers closed-loop rotary motion to positioning tables, pick-and-place heads, and similar automation axes. Natural convection cooling lets the unit operate without auxiliary fans, making it suitable for compact cabinets where forced ventilation is not available.

During continuous duty, the motor develops 0.8 Nm of stall torque while drawing 3.5 A. These figures represent the continuous mechanical load and supply current that can be applied without thermal drift. At its rated operating point, the shaft turns at 6000 rpm, a speed that supports fast cycle times in light-inertia mechanisms. The electromagnetic design converts current to torque at 0.230 Nm/A, simplifying drive tuning because output torque scales linearly with commanded current. A pilot diameter of 95 mm centers the flange against gearboxes or adapter plates and helps maintain runout accuracy. Rotor inertia is 2.4 × 10⁻⁴ kg·m², so acceleration profiles remain responsive when paired with medium-power drives. Feedback comes from a tachogenerator combined with a standard incremental encoder, providing velocity and position signals to an analog controller. The tacho voltage is 1.5 V per 1000 rpm, giving proportional speed feedback for velocity loops.

For short transients such as index moves, the drive may supply 19 A peak pulse current, allowing the motor to produce several times its continuous torque without saturation. The assembly weighs 3.2 kg, easing installation on moving gantries where mass directly affects dynamic load. Winding inductance of 3.5 mH and winding resistance of 3.7 Ω set the electrical time constants that a servo amplifier must control for stable current regulation. A 30-minute thermal time constant indicates that temperature rises slowly, permitting brief overloads without immediate overheating. Heat is removed through the aluminum frame, so ambient airflow around the housing must be maintained.