Actuator STM


The electric actuator "STM" is designed to operate the injection pump lever of diesel engines in combination with an electronic control system for hydraulic drives supplied by Brueninghaus Hydromatik.

Due to its enclosure protection class, temperature resistance and vibration resistance, this servomotor is suitable for installation in the engine compartment close to the injection pump.

The STM permanent-magnet DC electric motor is activated by a pulse width modulated (PWM) voltage directly from a MC microcontroller (see RE 95050).

The STM actuator contains a 3-speed gear and a potentiometer thatdetects the angular position of the drive shaft. A built-in switch (safety contact) is opened at a predefined angle of rotation of the drive shaft.

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