B-206-C-21-033 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-206-C-21-033 is part of the Goldline B and BH Motors series and has a motor weight of 7.6 kg. It delivers a continuous stall torque of 6.44 N-m at a continuous stall current of 10 Arms, and a peak stall torque of 19.5 N-m. The motor features IP65 sealing and has an inductance of 11 mH with a back EMF constant of 37.7 Vrms/kRPM.
Internal Product Review
The B-206-C-21-033 is a Kollmorgen Goldline servo motor with IP65 sealing and a rear shaft extension for flexible machine integration. Continuous stall torque of 6.44 N-m and peak stall torque of 19.5 N-m give the motor strong torque reserve, with 19.5 N-m peak stall torque standing out for demanding motion applications.
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Product Description:
The B-206-C-21-033 is a brushless servo motor produced by Kollmorgen as part of the Goldline B and BH Motors series. It is intended for closed-loop motion axes where repeatable position, speed, and torque are required in packaging lines, pick-and-place gantries, and similar automation tasks. Paired with a compatible digital drive, it converts commanded phase current into mechanical rotation, giving machine builders a compact actuator that can be integrated directly onto lead screws, gears, or belt transmissions. Its compact form also suits installations where the motor must fit beside guarding, conveyors, or other closely spaced machine components.
During continuous operation at stall, the motor can develop 6.44 N-m of torque while drawing 10 Arms of phase current; this indicates the load it can hold without overheating. A torque constant of 0.624 N-m/Arms links commanded current to delivered torque, which helps the drive respond predictably to current changes. The phase inductance is 11 mH, which filters current ripple and affects the achievable bandwidth of current regulators. Copper losses are limited by a winding resistance of 0.82 ohms, contributing to thermal rise under steady load. These values help match the motor to a suitable servo amplifier for continuous-duty operation.
Transient demands are met with a peak torque capability of 19.5 N-m supported by a momentary current of 33 Arms, and these limits permit rapid acceleration of connected loads. A rotor inertia of 0.000251 kg-m² provides a balance between dynamic response and load matching, while the four-pole magnetic circuit supports smooth sinusoidal commutation. The housing has an IP65 rating, so the unit resists dust ingress and low-pressure water jets in washdown areas. Additional design details include a rear shaft extension for mounting encoders or brakes, a motor mass of 7.6 kg for structural sizing, static friction of 0.11 N-m, viscous damping of 0.012 N-m/kRPM, and a 21-minute thermal time constant that predicts temperature rise after step changes in load.
