The American company Allied Motion Technologies with its subsidiary in the Netherlands presented the Kinetimax 42 EB for the first time at SPS IPC Drives in Nuremberg - a high-precision brushless DC motor as an external rotor with integrated electronics. EB stands for "Electronic on Board".

As a new member of the family, the 42 millimeter flange-sized external rotor motor joins the series between the 24, 32, 54 and 68 millimeter diameter sizes and, at 54 millimeters long and 225 grams, is the shortest and lightest EB motor with integrated electronics in its size. The company also claims an efficiency of up to 80 percent, which also includes the efficiency of the internal motor electronics.

Thanks to the optimized bearing system, the Kinetimax 42 EB can handle high radial forces of up to 60 newtons (force application point 15 millimetres from the flange). A minimum service life of 20,000 hours is achieved thanks to the thermal system and optimum connection of the electronics to the bearing unit.

The power pack achieves an output torque of 70 millimnewton meters at a constant speed of 4,300 revolutions per minute. This unit therefore achieves an output power of 31 watts in continuous operation. Thanks to the analog setpoint input from zero to seven volts of the integrated drive electronics, the motor speed can be regulated in the range from 150 to 5,000 revolutions per minute. This unit also meets all EMC standards in accordance with EN 55014-1/2, 61000-6-1/3 and is available with a voltage supply of twelve and 24 volts DC.

The motor has a standard protection rating of IP 54 and thermal overload protection with automatic reset function as well as integrated reverse polarity protection for the power supply. Due to the basic principle of the external rotor, the rotor rotates around an internal stator. This minimizes the cogging torque behaviour and maximizes the output torque. The higher inertia of the external rotor design enables optimum concentricity even at very low speeds.

With these properties, the brushless DC motor is suitable for applications that require uniform and therefore constant or variable speed control. Typical applications include small pumps, fans, blowers and scanner units that have a square characteristic curve as a counter-torque. as