The 
The Kinshofer NOX tilt/rotator system has no tilt cylinders, making it suitable for standard excavation work and small enough for narrow working areas. An elliptic rotary actuator replaces hydraulic cylinders to create the tilting action. Kinshofer says the actuator also makes the coupler 15 to 20 percent smaller than other tilt/rotators, which preserves more of the backhoe’s original bucket breakout force. An integral rotator brake runs with the interior gear in a constant oil bath to improve durability.