Semi-Rotary Drive Dsrl-32-180-P-Fw Rotary Vane Principle, Infinitely Adjustable Swivel Angle. The stop System Is Separate From The rotary Vane So That Any Forces Which Occur Are Absorbed By The stop Cams And Cushioned Via Flexible Plastic Pads. Size=32, Cushioning Angle=1,2 Deg, Rotation Angle Adjustment Range=0 - 180 Deg, Swivel Angle=0 - 180 Deg, Cushioning=P: Flexible Cushioning Rings/Plates At both Ends, Festo