Habonim patent-pending innovative four-piston Scotch yoke design combines the benefits of high-power scotch-yok mechanism to generate maximal power from a vertical piston and the balanced and compactivity of the four-piston mechanism to provide fast and efficient pneumatic actuation with the highest durability.
The patent-pending four-piston Scotch yoke pneumatic actuator provides double the power-to-size ratio. In other words, a comparable traditional high-torque Scotch yoke actuator will be twice as big as a Power CompAct unit. The Power CompAct unit is much faster in opening and closing and uses less compressed air to operate. The evenly balanced forces of the four pistons and short travel (short piston) provides un-matching high cycle long life without maintenance for hundreds of thousands of operations.
Courtesy of Habonim.