Product Description:

The SF-A4.0230.030-04.053 is a synchronous servo motor produced by Bosch Rexroth Indramat within the SF Servo Motors series. Serving as a compact drive element, it delivers precisely commanded torque and velocity for pick-and-place stations, indexing tables, and other automated axes across manufacturing cells. Its electromechanical design integrates an encoder and a holding brake so the motor can support controlled motion during operation and maintain secure stops whenever power is removed. This combination helps the axis start from a known position and maintain stable motion during repetitive automation cycles.

The motor reaches a rated speed of 3000 rpm, allowing direct coupling to gearless loads that demand moderate continuous velocity. When the shaft is blocked, a locked-rotor torque of 23 Nm helps resist unintended drift during calibration or clamping cycles. A permanent-magnet brake provides a holding capability of 18 Nm and is released by a supply of 24 V DC, which helps secure vertical axes during power loss. The motor’s absolute value encoder provides immediate position feedback after startup, reducing the need for reference movement in machines that require accurate positioning. A fixed A-side bearing arrangement supports axial loads from couplings while maintaining precise rotor alignment.

For acoustic compliance in assembly areas, the unit’s operation is limited to a noise level of 58 dB(A) max, helping support quieter machine operation. Mechanical resilience is verified by a shock resistance of 6 g, so conveyor impacts or transport jolts are less likely to disturb internal alignment. During brake release, the winding draws only 0.7 A, which helps limit additional electrical loading on the control system. Thermal monitoring is handled by 2 NTC sensors embedded in the stator, allowing the drive to respond to rising temperature before overheating develops. This arrangement helps protect the windings during repeated starts, stops, and holding periods.