Curt wrote:\; Without seeing the design, gravity may be assisting your motion in one direction and resisting motion in the other direction. Your load may also be more than this plate if it is pushing product in one direction but not the other. Regardless of what the reason for the different forces, different pressures will make the actuator move quickly and smoothly. The only problem with air cylinder action comes when the load is changing while it is in motion. Go to oil in those cases.