1 kW servo, 3.18 N.m at 380 V — what the ratings mean on the line
The BEH18LH1033MA6D delivers 1000 W continuous power with 3.18 N.m nominal torque at 380 V three-phase and 3000 rpm nominal speed. That torque constant is 0.924 N.m/A at 40 °C, so the drive current loop sees a linear torque-per-amp relationship up to the continuous stall current of 3.44 A. Peak stall torque hits 9.54 N.m — useful for breakaway loads or short acceleration bursts, but the RMS thermal limit stays at the 3.18 N.m continuous figure. The 17-bit magnetic multi-turn encoder gives 131,072 counts per revolution absolute position across multiple turns — no homing sequence needed on power-up for applications where the load stays within the encoder's travel range. Magnetic sensing is less sensitive to vibration than optical encoders in high-shock environments.
IP67 and flange fit — mounting constraints for the build
IP67 protection means the motor body and shaft seal survive washdown and temporary submersion — suitable for food processing lines or outdoor conveyor sections where hose-down cleaning is routine. The Asian standard flange with 100 mm flange size and 9 mm mounting holes (4 holes) matches the common 100 mm square pattern used across many Asian-origin machine builders; confirm the pilot diameter and bolt circle against your mounting plate. Shaft is 24 mm diameter with a parallel key (8 mm key width), 45 mm shaft length, no second shaft end. The maximum radial force Fr is 686 N and axial force Fa is 196 N — stay within these limits when coupling to a belt drive or direct load to avoid bearing overload. Air-cooled, 10-pole motor. The electrical connection uses two connectors (male/female) — typically the power and feedback connectors are separate; verify the mating connector part numbers from the Lexium 18 catalog before panel wiring.