Product Description:

The P60B18550RXS0E is a servo motor manufactured by Sanyo Denki within the P6 Super BL Servo Motors series. This brushless unit converts drive current into precise rotary motion for positioning tables, extruder screws, and other industrial axes that require constant torque under closed-loop control. By integrating a wiring-saving incremental encoder, the motor provides feedback with reduced sensor cabling, simplifying installation in multi-axis automation systems.

This model uses a 180 mm square flange that aligns with ISO mounting patterns, and its rated output reaches 5.5 kW when the shaft turns at the nominal speed of 1,500 rpm. Under those conditions, it delivers a continuous torque of 35.0 N·m while drawing a continuous current of 32 A rms from the amplifier. The low winding resistance of 0.040 Ω limits electrical losses and helps the windings achieve an electrical time constant of 23 ms, so current settles quickly after command changes. A torque constant of 1.18 N·m/A rms relates drive current to mechanical output, while the back-EMF gradient of 41.2 mV per rpm supports speed-loop regulation. Mechanical response is aided by a mechanical time constant of 0.52 ms. The housing does not include a holding brake, so external clamping is required to secure vertical loads when power is removed.

The permitted speed range extends to 2,500 rpm, and the motor can generate a peak torque of 88.3 N·m for rapid acceleration. Its stall torque is 37.3 N·m, providing additional torque capacity when the shaft is stationary. The feedback device offers 2,000 pulses per revolution, providing fine position and velocity resolution for contouring drives. The motor has an overall mass of 31.7 kg, which contributes thermal inertia and delays temperature rise during transient duty cycles. Its brushless design eliminates commutator wear and reduces the number of components subject to mechanical friction during operation.