Reconstructable dampers are designed to last at least 25 years. These rugged products wear out very slowly and can be easily adjusted and repaired to suit new conditions; Make the damping apparatus have a variety of service life. The circulating oil principle ensures unmatched symmetrical damping forces and provides good heat transfer between the dampers and the surrounding air, allowing them to operate in terminal conditions. The design is optimized to achieve the highest possible reliability while allowing for a long time between continuous overhauls.