O-ring for Demag AC80-1

The O-ring with part number 082 876 serves as a precision sealing element within the hydraulic and mechanical systems of the Demag AC80-1 all-terrain crane. It is designed to be compressed into a groove between two mating surfaces, creating a hermetic seal that prevents the escape of hydraulic oils, lubricants, or coolants and blocks the entry of external contaminants into the circuit. By maintaining the integrity of these junctions, the component helps preserve the necessary pressure and fluid volumes required for the machine to operate correctly.

This seal is compatible with the Demag AC80-1 model. O-rings of this type are standard components used throughout heavy machinery to provide leak-proof connections in hydraulic, pneumatic, engine, and transmission assemblies. They function by deforming under compression to fill the gap between components, effectively isolating the internal fluid environment from the outside. Proper sealing is necessary to prevent fluid loss and contamination, which are common causes of reduced efficiency or localized system failure in heavy equipment.