Chicago Pneumatic ADP-20-4-S Pneumatic Cylinder

Chicago Pneumatic ADP-20-4-S Pneumatic Cylinder is a mid‑size actuator in the CP ADP cylinder family, designed for compact, linear pneumatic motion in automation and assembly tasks. It features a 2-1/2 in (63.5 mm) bore and a 4 in (101.6 mm) stroke, delivering reliable push or pull actuation within standard CP mounting patterns. This model suits light‑ to moderate‑duty applications such as part advancement, clamping, and indexing in automation cells, packaging lines, and fixture setups where precise, repeatable travel is required. The ADP-20-4‑S designation reflects the bore/stroke combination associated with the ADP‑20 family; CP documentation for this series aligns with a 2.5" bore and 4" stroke configuration. Catalog records indicate the ADP-20-4 series has been discontinued by the manufacturer, so availability may be limited to surplus stock or certified remanufactured units. For installation, use CP‑recommended fittings and mounting hardware compatible with these cylinders to maintain sealing integrity and reliable performance.