Schneider Electric BCH18LB0133CF5C Easy Lexium 18 BCH18 100 W 0.32 N·m 40 mm Brake Multi-Turn Servo Motor

The Schneider Electric BCH18LB0133CF5C is an Easy Lexium 18 BCH18 servo motor rated for 100 W continuous power. It delivers 0.32 N·m continuous stall torque at 3000 rpm (max mechanical speed 6000 rpm), draws 1.1 A continuous stall current, and mounts on a 40 mm flange with a holding brake. Peak stall torque reaches 0.96 N·m for short acceleration bursts, and the 23-bit multi-turn encoder with IP67 sealing suits enclosed motion-control axes on a matched LXM18 servo drive.

Selection Notes

This is the low-inertia (L) build of the 40 mm BCH18 frame, so it favors fast acceleration and deceleration over sheer inertia-matching mass — use the 0.036 kg.cm² rotor inertia figure above, not the housing dimensions, when checking the load-to-rotor inertia ratio for the driven axis. The 23-bit multi-turn encoder retains absolute position through a power cycle, removing the homing move that the incremental-encoder version of this frame needs at every start-up. The holding brake (0.35 N·m) keeps a vertical or suspended load from dropping when drive power is removed; skip it for horizontal axes that do not need power-off holding. Size the matching LXM18 servo drive to the 1.1 A continuous stall current, not the 0.96 N·m peak stall torque, which only applies for short acceleration bursts.