Crawford-Hafa hydraulic cylinder, upper lip, stroke length 305mm

This component is a hydraulic actuator used on Crawford and Hafa dock levellers—specifically the upper‑lip (or lip‑hinge) cylinder. Its job is to raise and control the lip plate during the leveller’s operating cycle.

It is different from the telescopic‑lip cylinder (used on teledocks). The upper‑lip cylinder is used on hinged‑lip dock levellers.