Product Description:

The SF-A4.0230.030-04.000 is a servo motor produced by Bosch Rexroth Indramat within the SF Servo Motors series. It delivers controlled torque and speed for automated axes, allowing CNC tables, pick-and-place heads, or feeder rolls to follow precise motion profiles generated by the machine controller. A permanent-magnet holding brake keeps the load in position at standby, and the integrated single-turn feedback device returns absolute shaft position to the drive for closed-loop operation. This makes the unit suitable for axes that must stop securely and restart without losing position data.

The motor provides a continuous drive capability of 25 Nm, which is the sustained torque available under rated thermal limits. For short demand peaks, it can deliver up to 85 Nm, enabling rapid acceleration of inertial loads during indexing moves. At standstill, the windings draw 16.2 Arms, so the power stage must accommodate that current to prevent nuisance trips. The brake coil is energized at 24 VDC ±10%, which matches standard control supply rails and simplifies wiring of the brake circuit. Position reporting is handled by a single-turn absolute encoder, so homing routines are unnecessary after power cycling. A keyed shaft, a pilot diameter of Ø130 j6, and connector size 1.25 simplify coupling and cabling in industrial equipment with limited installation space.

The enclosure is rated at IP67, so it resists dust ingress and water jets and can be used on washdown lines. The allowable ambient range of 0 to 40 °C covers most factory floors without external cooling aids. Mechanical power is transferred through a Ø24 k5 shaft with a keyway to help prevent slip between the motor and the driven component. During operation, the acoustic output does not exceed 58 dB(A), which keeps motor noise moderate in enclosed work areas. The pilot register and connector orientation support straightforward installation on matching machine interfaces and help maintain accurate alignment during assembly.