BH424D63 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen BH424D63 is part of the Goldline B and BH Motors series and offers a continuous stall torque of 10.6 Newton-meters with a maximum speed of 3700 RPM. This motor features a continuous power rating of 3.3 kilowatts at 480 volts and a continuous current of 6.3 Arms. It has a face bolt circle of 130 millimeters and is equipped with a thermostat that opens at 170 degrees Celsius and closes at 132 degrees Celsius.
Internal Product Review
The BH424D63 is a Kollmorgen Goldline servo motor that delivers 3.3 kW continuous power at 480 V and reaches 3700 RPM. Continuous stall torque of 10.6 N-m and peak stall torque of 20.0 N-m give the unit strong low-speed authority and impressive overload capability.
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Product Description:
The BH424D63 is a brushless servo unit produced by Kollmorgen for the Kollmorgen Goldline B and BH Motors series. In automated machinery, it delivers closed-loop torque and speed control for positioning tables, feeders, and similar motion axes. The drive amplifier can regulate current precisely through the motor windings to maintain controlled movement under changing loads.
During continuous operation, the windings carry 6.3 Arms, supporting a sustained mechanical output of 3.3 kW from a 480 V supply. The magnetic circuit can maintain a continuous stall torque of 10.6 N·m, so the axis can remain loaded without overheating. For acceleration or shock loads, the drive may demand up to 12 Arms. At this current, the rotor produces a peak stall torque of 20.0 N·m before reaching the threshold at which demagnetization may occur. The maximum electrical frequency corresponds to a shaft speed of 3700 rpm, which sets the upper speed that the attached controller may command. These ratings support the selection of suitable amplifier current limits and gear ratios for the required duty cycle without exceeding the motor’s thermal or magnetic limits.
The electromagnetic time constant is influenced by a line-to-line inductance of 60 mH, which filters switching ripple from the inverter and helps smooth current transients. Rotor dynamics are characterized by a moment of inertia of 0.000656 kg·m²; this low value supports rapid velocity changes while storing enough energy for stable servo tuning. Mechanical mounting uses a face bolt circle measuring 130.00 mm, and the shaft has a minimum extension of 37.00 mm for coupling hardware. The motor has no shaft seal, so protection from contaminants must be provided by the machine enclosure. An embedded thermostat closes at 132 °C and reopens at 170 °C. Its normally closed contacts are rated for 4 A at 120 VAC, providing a direct overtemperature trip input to the drive.
