Product Description:

The MAC071A-0-0S-4C/095-B-1/AM154SG/S001 is a servo motor manufactured by Bosch Rexroth Indramat as part of the MAC AC Servo Motors series. Classified as a motor for analog drives, it supplies regulated rotary motion for positioning axes and speed-controlled spindles in industrial automation equipment. The unit’s housing supports natural convection cooling, and its encoder interface accepts incremental or absolute feedback so legacy tachometers or modern controllers can obtain real-time speed and position information. This arrangement allows the motor to serve both speed-regulated and positioning tasks without requiring separate external feedback hardware.

This model draws a continuous current of 3.8 A, producing a steady torque of 2.2 Nm at the shaft. Under rated load it maintains a nominal speed of 3000 rpm, and its electromagnetic design yields a torque constant of 0.580 Nm/A, showing the torque produced for each ampere of phase current. Magnetic behavior is influenced by a winding inductance of 20 mH, while the 3.5 Ω resistance affects copper losses during operation. A 45-minute thermal time constant indicates how quickly the motor temperature rises after a load change. Motion feedback is delivered with 4096 × 4096 count resolution, giving fine position granularity for closed-loop control. Size code 071 and length code A set the mechanical envelope for integration, and the natural convection path removes the need for forced-air devices.

Transient acceleration is supported by a peak pulse current of 19 A. For static holding, an internally mounted brake supplies 3.0 Nm of torque and is energized by 24 V DC. Mounting is centered with a 95 mm register, which helps align the motor accurately on the machine face. The keyed shaft uses a 6 × 6 × 36 mm key for positive drive coupling, and the rotor inertia of 5.4 × 10⁻⁴ kg·m² moderates speed changes during acceleration and deceleration. Motor mass is 6.5 kg, which provides useful thermal capacity while remaining manageable for installation.