Back-up ring for Terex HC230

The back-up ring 0782 303 11 serves as an auxiliary component within the hydraulic sealing systems of the Terex HC230 crane. It is engineered to provide mechanical support to dynamic and static seals, ensuring they maintain their intended shape and position when subjected to high fluid pressures. By filling the clearance gap between mating surfaces, this component prevents the primary seal material from extruding, which otherwise leads to premature seal failure and fluid leakage.

This component is specifically manufactured for the Terex HC230 model. It is designed to work in conjunction with primary seals such as O-rings or rod seals to maintain system integrity during the operation of hydraulic circuits that control the boom and counterweight assemblies. The manufacturer for this part is Terex.

In hydraulic systems, back-up rings are used to protect softer sealing elements from deformation. They are typically installed on the low-pressure side of the primary seal. By providing a rigid surface that resists the force of the hydraulic fluid, the back-up ring allows the primary seal to function effectively even under significant pressure loads, thereby maintaining the overall efficiency of the hydraulic assembly.