The Mitsubishi HG-KN23BJ-S100 is a 0.2 kW servo motor delivering 0.64 N·m of rated torque at 3000 r/min, with a maximum speed of 6000 r/min and an instantaneous permissible speed of 6900 r/min. That 16.4 kW/s power rate at continuous rated torque tells you how fast it can accelerate a load — relevant for pick-and-place or indexing moves where cycle time is tight. The recommended load-to-motor inertia ratio of 15 times or less means the motor can handle a reasonably stiff mechanical coupling without losing loop stability; exceed that and you'll need to tune the servo gain down or add a gearbox.
Brake, seal, and enclosure — fit for wet or vertical axes
The 'B' in the model designation means an electromagnetic brake is fitted — holds the load on a vertical axis when the drive is off. The 'J' indicates an oil seal installed at the shaft exit, which combined with the IP65-rated totally enclosed, natural-cooled structure makes this motor suitable for washdown environments or areas with cutting oil mist, as long as it's indoors and free from corrosive gas. Vibration rank V10 and vibration resistance of 49 m/s² in X and Y axes give it the stiffness to hold position under moderate machine vibration without losing encoder count.