Lexium 18 servo motor — 2 kW, 6.37 Nm, IP67
The BEH18LH2033MA6D is a 2 kW servo motor from Schneider Electric's Lexium 18 range, delivering 6.37 Nm continuous stall torque at 3000 rpm nominal speed on a three-phase 380 V supply. The 17-bit magnetic multi-turn encoder provides absolute position feedback without a battery backup — the multi-turn count is retained through the magnetic gear train, not a counter that drains on power loss. Rated IP67, the motor body and connector interface withstand washdown environments — the sealing is at the housing and the mating connector face, not just the shaft seal. The 100 mm Asian-standard flange and 24 mm shaft with parallel key match the mounting pattern common on compact packaging and material-handling axes.
Torque, inertia, and mechanical limits
Maximum radial force at the shaft is 686 N, axial force 196 N — these set the bearing life limit for belt-pulley or leadscrew loads. The 10-pole design keeps cogging torque low at low speeds, which matters for positioning moves where the motor must hold position without a brake. Continuous stall current is 7.05 A; maximum current is 21.15 A at 2 kW, 380 V. The torque constant of 0.904 N·m/A at 40 °C means the drive must supply roughly 7 A to hold rated torque — the drive's continuous current rating should match or exceed this figure, not just the motor's nominal power.