Schneider Electric BCH18MB0133CA5C Easy Lexium 18 BCH18 100 W 0.32 N·m 3000 rpm 40 mm Multi-Turn Servo Motor

At 100 W and 0.32 N·m continuous stall torque, the Schneider Electric BCH18MB0133CA5C is the brakeless Easy Lexium 18 BCH18 servo motor built on the 40 mm flange. Its 23-bit multi-turn absolute encoder retains shaft position through a power cycle, removing the homing routine the incremental variant needs. Continuous stall current is 1.1 A and the medium-inertia rotor measures 0.07 kg.cm².

Selection Notes

Dropping the brake from the 100 W, 40 mm-flange frame trims net weight to 0.43 kg against 0.69 kg for the braked BCH18MB0133CF5C — worth doing on a horizontal axis or anywhere another mechanism already holds position when the servo is off. The 23-bit multi-turn absolute encoder is the reason to pick this variant over the incremental BCH18MB01332F5C: it remembers shaft position through a power cycle, so the machine does not need a homing sequence before every job. Size the Lexium 18 (LXM18) drive's continuous output to the 1.1 A continuous stall current here, leaving headroom to the 3.9 A maximum permanent current for acceleration spikes. Medium inertia (0.07 kg.cm²) keeps this motor suited to load-matched axes — conveyors, small indexers — rather than the fast, low-mass cycling a low-inertia frame is built for. Maximum mechanical speed is rated to 6000 rpm against the 3000 rpm nominal speed the torque figures above are measured at, giving margin for brief overspeed on deceleration. IP67 sealing and the two-connector male/female power and feedback interface match the rest of the Easy Lexium 18 BCH18 range, so switching between the incremental and multi-turn variants does not change the cabling or enclosure design.