O-ring for Demag AC80-1

The O-ring 978 347 73 functions as a sealing element in the hydraulic and pneumatic assemblies of the Demag AC80-1 crane. It creates a seal between two mating surfaces to prevent the leakage of fluids such as oil, water, or air and to block the entry of external contaminants into the system. The toroidal design allows for controlled compression, which generates the necessary force to maintain a seal under operating conditions.

This component is specifically compatible with the Demag AC80-1 model. It is designed to fit into the machine's internal assemblies to ensure the integrity of the pressurized systems. Proper installation of this seal helps prevent pressure loss and system contamination, which are common issues when seals are worn or damaged.

In heavy machinery, O-rings serve as the primary barrier in fluid power circuits. They are typically installed in grooves within hydraulic cylinders, valves, and pump housings to maintain system pressure. By providing a flexible interface between rigid metal components, these seals accommodate minor misalignments and thermal expansion while ensuring that hydraulic fluid remains contained within the intended flow paths.