Motor specs that decide the fit
The BEH18MM1813CF6C: Rated 1.8 kW continuous output at 220 V, three-phase, with a nominal speed of 1500 rpm and a nominal torque of 11.5 N.m. Peak stall torque hits 34.5 N.m at 220 V — this is the short-duration overload ceiling for acceleration or emergency stop, not the continuous rating. The 23-bit optic multi-turn encoder gives absolute position feedback over multiple shaft revolutions, so the drive knows the rotor angle at power-up without a homing move. Holding brake rated at 16.0 N.m static torque holds the load on a vertical axis when power is removed — no external brake resistor needed for the Z-axis.
Mounting and mechanical interface
Asian standard flange, 130 mm square, with four mounting holes — matches the common 130 mm frame footprint used across Lexium 18 motors. Shaft is 22 mm diameter with a parallel key (8.0 mm key width), 58 mm shaft length, no second shaft end — direct-couple to a load or gearbox. IP67 rating means the motor body and shaft seal withstand washdown — suitable for food processing or wet environments where coolant spray is present.
Electrical and thermal limits
Continuous stall current is 12.5 A; maximum permanent current is 36 A — the drive must be sized for the peak current during acceleration, not just the continuous figure. Torque constant 0.92 N.m/A at 40 °C means each amp of current produces just under 1 N.m of torque in the linear region — useful for calculating the current needed for a given load torque. Back EMF constant 63.35 V/krpm at 40 °C — at 3000 rpm the motor generates 190 V back EMF, which limits the bus voltage headroom for the drive.