Abstract: A monitoring device and a method for determining operating health of a pressure medium operated device. The monitoring device is configured for processing input measuring data relating to operation of the pressure medium operated device. An operating condition value is determined in the monitoring device, where after the operating condition value is compared to an input reference data in order to determine current operating health. The reference data is determined by utilizing strength analysis, which is executed for a design model of the associated pressure medium operated device.

Abstract: The invention relates to a rotary actuator, converting actuator and method for producing rotation. The rotary actuator includes at least two rotation units for producing stepped angular displacements (Rs). The rotation unit includes a cylinder for producing linear movement (L) and a converter for converting the linear movement to rotation. The stepped rotary movements of the rotation units are transmitted by transmission elements to an output shaft.

Abstract: The invention relates to a rotary actuator, converting actuator and method for producing rotation. The rotary actuator includes at least two rotation units for producing stepped angular displacements (Rs). The rotation unit includes a cylinder for producing linear movement (L) and a converter for converting the linear movement to rotation. The stepped rotary movements of the rotation units are transmitted by transmission elements to an output shaft.

Abstract: A monitoring device and a method for determining operating health of a pressure medium operated device. The monitoring device is configured for processing input measuring data relating to operation of the pressure medium operated device. An operating condition value is determined in the monitoring device, where after the operating condition value is compared to an input reference data in order to determine current operating health. The reference data is determined by utilizing strength analysis, which is executed for a design model of the associated pressure medium operated device.