B-604-C-31-B3 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen B-604-C-31-B3 is part of the Kollmorgen Goldline B and BH Motors series and delivers a rated power of 8600 W with a rated torque of 19.1 Newton-meters. This motor features a continuous stall current of 39.4 Arms and a brake voltage of 24 VDC with a brake torque of 48 Newton-meters. It also has an inductance of 3.3 mH and a peak stall torque of 86.4 Newton-meters.
Internal Product Review
The B-604-C-31-B3 is a Kollmorgen Goldline servo motor with 8600 W rated power and 19.1 N-m rated torque. Peak performance is especially impressive, with 86.4 N-m peak stall torque and 114.8 Arms peak stall current supporting demanding motion profiles. A 24 VDC brake with 48 N-m brake torque adds strong holding capability and completes a very capable motor package.
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Product Description:
The B-604-C-31-B3 is a servo motor produced by Kollmorgen within the Goldline B and BH Motors series. It is intended for closed-loop industrial automation where precise torque delivery over a wide speed range is required; the model converts electrical power from a matched drive into mechanical rotation for positioning or velocity control on machinery axes. Designed for demanding motion loops, this motor integrates an electromagnetic brake and a low-inertia rotor so machine builders can achieve rapid index moves while still holding loads safely when power is removed.
At stall, the motor can sustain 31.2 N-m of continuous torque while drawing 39.4 Arms of continuous current from the drive. The motor has a 0.792 N-m/Arms torque constant, so every ampere contributes nearly 0.8 N-m. For quick accelerations, the design allows a short-duration output of 86.4 N-m peak torque that coincides with 114.8 Arms peak current, permitting rapid cycle moves before the average heating limit is reached. Under rated running conditions, the shaft delivers 19.1 N-m at 8.6 kW. The 3.3 mH phase inductance smooths current ripple, and the 0.13 Ω line-to-line resistance limits conduction losses when the axis is idle.
The brake assembly provides 48 N-m of static holding torque and engages whenever the supply of 24 VDC is removed, locking the shaft through a spring-applied mechanism that releases at only 1.27 A of coil current. Because the brake adds 0.000127 kg·m² to the reflected load, its contribution to total inertia remains small compared with the 0.00203 kg·m² rotor, preserving dynamic response. The drive sees a 47.89 Vrms/kRPM back-EMF constant, which helps predict voltage demand across the intended speed band. The low rotor inertia and modest brake inertia support tight velocity loops and stable load holding on vertical axes without external clamps.
