Motor specs that drive the sizing decision
The SH30703P0AF4100: This is a three-phase servo motor from the SH3 family, delivering 1330 W continuous power and a nominal torque of 2.8 N·m at 400/480 V three-phase supply. The integral holding brake locks with 3 N·m — enough to hold a vertical axis load stationary when power is removed, which is the deciding factor for Z-axis or gantry applications where the load must not drift. The absolute single-turn Hiperface DSL encoder provides position feedback without a home cycle on power-up — critical for applications where the machine must resume from the last known position after a power cycle or emergency stop.
IP65 and mounting — fit for washdown and direct coupling
The natural-convection cooling (no fan) avoids drawing contaminants into the motor housing. The 70 mm flange mounts to the standard international flange pattern, with a centring collar depth of 2.5 mm for precise concentric alignment. The smooth shaft (14 mm diameter, 30 mm shaft length) accepts a coupling or pulley without a keyway — confirm the torque-transfer method (clamp-on coupling, set-screw, or keyless locking assembly) matches the peak torque of 11.3 N·m.
Torque and current limits for the drive pairing
Continuous stall torque is 2.94 N·m across the 115–480 V three-phase range; peak stall torque reaches 11.3 N·m for short-duration acceleration or overload events. The corresponding peak current is 17.0 A (Irms) — the servo drive must be sized to supply this peak current for at least 3 seconds without tripping. Stator resistance is 2.7 Ω and inductance 7.3 mH — these values set the electrical time constant and influence the drive's current-loop tuning. The torque constant is 0.72 N·m/A at 120 °C copper temperature, so the drive's current command maps directly to torque output.