Actuators & Positioners Two direction Positioner (Lg Bore) Linear piston type positioner Total Stroke lengths: 2", 4", and 6" Move 1/2 total stroke in each direction from a center "zero" position Force ratings (inch-lb. degrees): 1620, 3240, and 4860 Die cast, anodized aluminum head and cap; aluminum body Operating pressure: 10-90 Download SC-900/1000 catalog (pdf 2.7 MB)