Proven advantage The Compact Ⅱis a quarter turn rack & pinion pneumatic actuator that is patented worldwide. The superiority of the Compact Ⅱ actuator over single and double rack & pinion actuator designs, results from the four pistons which generate torque around a centrally located pinion, thereby giving more than double the torque achieved by these other designs. The increased number of pistons in the actuator allows their diameter to be reduced while maintaining its high torque. This also allows the overall size of the actuator to be reduced and become more compact. ? 1. Space Saving, Fast Acting ? 2. Superior Corrosion Resistance ? 3. Less air Consumption ? 4. Balanced Forces ? 5. Nested springs are many more spring combination possibilities than with double piston actuators. ? 6. Less Wear ? 7. Visible Indicator & Puck