Packing for Demag AC1200

The packing 269 736 40 serves as a critical seal within the hydraulic or pneumatic systems of the Demag AC1200 crane. By creating a secure barrier between stationary or moving surfaces, this component prevents the loss of pressurized fluids or gases, ensuring the integrity of the crane's complex hydraulic circuits that control the boom, counterweight, and outrigger operations. Its design accommodates specific surface tolerances to provide an effective seal where standard O-rings may not be suitable.

This component is compatible with the Demag AC1200 crane, specifically for units within the 79032 series. The packing is engineered to meet the dimensional requirements of the machine's hydraulic and pneumatic assemblies, facilitating proper operation under the pressures typical of large-scale lifting equipment. Proper installation of this seal helps maintain the necessary pressure levels required for the crane to perform its intended functions effectively.

In heavy machinery, packing seals are used to contain fluids within cylinders, actuators, and valves. They function by filling the gap between mating parts, compensating for surface irregularities to prevent leaks. Maintaining the seal integrity is necessary to avoid pressure drops that could lead to erratic performance or the loss of function in hydraulic systems.