An actuator having at least two rods arranged for individually motion

A method for providing a rotational motion of a first base member of a fluid actuator arrangement comprising a first cylinder housing comprising;

• a first piston body slidingly arranged in the first cylinder housing, first piston body comprising a first through-bore and a first clamping element provided for releasable clamping onto a first piston rod, wherein
• the first piston body comprises a second through-bore and a second clamping element provided for releasable clamping onto a second piston rod;
• a first static holding unit comprising;
• a first clamping unit provided for releasable clamping onto the first piston rod;
• a second clamping unit provided for releasable clamping onto second piston rod;
• a first base member coupled to the first piston rod via a jointed coupling joint for providing a rotational motion of the first base member during longitudinal motion of the first piston rod when clamped on the first piston rod;
• the second piston rod is coupled to the first base member for providing the rotational motion of the first base member;
• the first base member is coupled to a first end of the first piston rod and to a first end of the second piston rod;
• the method comprises the steps of:
• clamping the first piston rod by means of the first clamping element;
• clamping the second clamping unit for holding the second piston rod;
• and
• moving the first piston body.