Product Description:

The BL-MC50E-20T belongs to the BL Servo Motors series produced by Okuma for closed-loop motion tasks in machine tools and automated handling stages. This industrial AC servo motor converts controlled electrical energy into proportional mechanical torque and speed so that a drive or CNC can position an axis precisely. It is suited to feed and transfer axes that require repeatable motion, stable response, and accurate positioning during continuous operation. This makes it suitable for machine movements that must start, stop, and reverse without losing positional control.

The motor draws 4.45 A of line current at a rated supply of 133 V, which sets the basic electrical requirement for the matching drive and supply conductors. Under continuous load it reaches a rated shaft speed of 2000 rpm, giving moderate rotational velocity for feed drives that need stable cutting or transport rates. Its locked-rotor torque is 5.4 N-m, which indicates the maximum static load the shaft can hold without rotation when energized. The stator is wound for a three-phase supply, allowing smoother torque production and lower torque ripple than single-phase designs, which helps reduce vibration in precision equipment.

The control code is E, meaning the winding and magnet set are matched to drives that output the corresponding current profile while permitting consistent field orientation. Position and velocity loops rely on an integral encoder that returns high-resolution feedback to the controller for tight following error limits. Closed-loop feedback lets the controller correct small load changes before they affect path accuracy. Vector control can modulate flux and torque channels independently, which improves dynamic response during acceleration and deceleration. The winding, rotor inertia, and thermal behavior are matched so that the motor maintains predictable output during typical machining duty cycles.