Product Description:

The SF-A4.0091.030-04.000 is a servo motor built by Bosch Rexroth Indramat and assigned to the SF Servo Motors series. Designed for closed-loop positioning and velocity control, it converts drive commands into precise rotary motion for packaging stations, pick-and-place heads, and other high-cycle industrial axes. A plain output shaft transmits torque directly into couplings while digital servo feedback relays real-time rotor position to the drive, allowing tight regulation of speed and acceleration in multi-axis automation cells.

The motor delivers a continuous stall torque of 30.9 Nm, meaning it can hold that load indefinitely without exceeding thermal limits when coolant flow is maintained. To sustain this torque, the windings draw a continuous stall current of 102.9 A, a figure used when sizing the matching power stage and cables. Under rated operating conditions, it reaches 6000 rpm, pairing high speed with appreciable torque for rapid indexing tasks. Heat is extracted through a liquid-cooled housing, so the unit can be placed in cabinets with limited airflow. An enclosure classification of IP65 blocks dust ingress and water jets, enabling use on washdown production lines. Additional parameters include a centering diameter of 110 mm, a torque constant of 0.30 Nm/A, 0.7 mH phase inductance, and 0.07 Ω phase resistance.

Dynamic reserves are characterized by a peak torque of 60.8 Nm and a corresponding peak current of 293 A, available for short acceleration bursts without demagnetizing the stator. The low rotor inertia of 0.0042 kg·m² allows quick reversals and minimizes following errors when executing complex motion profiles. Overall mass is 22 kg, heavy enough to damp vibration while remaining suitable for vertical-axis mounting brackets. The plain shaft interface supports direct coupling to the driven mechanism.