The quarter turn actuator DFPD delivers a smooth performance under any conditions. The design of the rotary indexing centre AT150-14 as a closed-loop system was the result of cooperation between Pfiffner and StramaMPS. Three water tanks are needed to supply the deburring process with high pressure. The processes for filling and equalising the liquid in the system are controlled by the quarter turn actuators DFPD from the Festo Core Range.