Step seal for Demag AC80-1

The step seal, identified by part number 978 379 73, serves as a dynamic sealing component within the hydraulic systems of the Demag AC80-1 all-terrain crane. It is engineered to manage fluid containment and pressure regulation within the cylinder assemblies that operate the crane's boom, outriggers, and steering systems. By providing a tight interface between moving parts, this component prevents hydraulic fluid leakage and blocks external contaminants from entering the system.

This component is compatible with the Demag AC80-1 crane model. It typically functions in conjunction with a piston or rod to ensure the hydraulic circuit maintains the required operating pressure for precise control of machine movements. The design of a step seal allows for dynamic sealing applications where friction management and pressure retention are required during the stroke of a cylinder. Proper installation of this seal supports the functional integrity of the hydraulic actuators throughout the crane's operation.