B-204-B-11

The B-204-B-11 motor by Kollmorgen is a precision-engineered member of the Kollmorgen Goldline B and BH Motors series, designed for demanding motion control applications. This brushless synchronous servomotor features a Max BUS voltage of 320 VDC and delivers a Max Rated Power of .82 kW in a compact, low-inertia package. With a Max Speed of 2800 RPM and a Max Stall Tc of 61.1 lb·in, the B-204-B-11 achieves dynamic acceleration profiles while maintaining precise torque control. The motor’s Max Tp rating of 176.1 lb·in ensures ample peak torque for short-duration, high-load cycles. Weighing 6.2 kg, this unit balances high power density with an optimized footprint that simplifies integration into automated systems.

Performance is further enhanced by a continuous rated power output of 1.6 kW at 3600 RPM, supporting steady-state operation under moderate loads. The B-204-B-11 sustains a continuous stall torque of 4.47 Nm at 40 °C and achieves a maximum torque of 13.8 Nm for rapid load changes. Its rotor inertia of 0.000179 kg·m² delivers exceptional responsiveness, minimizing settling times in high-speed indexing tasks. Constructed with a high-energy neodymium-iron-boron magnet assembly, the motor maintains high torque density at low voltage inputs. The inherent thermal design accommodates efficient heat dissipation, enabling sustained operation at elevated duty cycles without performance degradation.

Reliability is assured by an IP65 sealing that protects internal components from dust and moisture ingress, while a built-in thermostat provides real-time thermal monitoring for overload prevention. The motor’s H-class insulation system ensures consistent performance under high-temperature conditions, extending service life in harsh environments. A standardized frame size (Frame 20) with two flying-lead connectors simplifies mechanical mounting and electrical interfacing, and compatibility with SERVOSTAR-certified amplifiers and SR10 servo drives enables advanced tuning and diagnostics. Ideal for packaging machinery, semiconductor handling, medical devices, and precision assembly lines, the B-204-B-11 integrates seamlessly into multi-axis configurations, delivering sustained accuracy, repeatability, and uptime in critical automation applications.