Closing plug for Demag AC80-1

The closing plug 509 850 98 is a component used to seal threaded openings within various systems of the Demag AC80-1 crane. It is specifically engineered to secure ports in hydraulic circuits, lubrication reservoirs, and other maintenance access points. By providing a secure fit, the plug prevents the escape of internal fluids such as oil or coolant and blocks the entry of external contaminants like dust, dirt, and moisture that can affect system integrity.

This part is compatible with the Demag AC80-1 model. It is designed to maintain a seal under the operating conditions typical of these crane systems, ensuring that fluids remain contained and internal components are protected from environmental debris. Proper installation of this plug helps maintain the operational parameters of the machine's fluid systems.

In heavy machinery, closing plugs are used to seal unused ports or access points in hydraulic manifolds, gearboxes, and engine blocks. They ensure that pressurized systems remain closed and that critical internal assemblies are shielded from the surrounding environment.