STAUFF Construction machinery components - Tough and robust!

16 fluid · 05 2023 Spectrum Construction machinery components Tough and robust! Hydraulic line systems of construction machinery need to be extremely robust. This is due to the high static operating pressures, dynamically changing pressure loads, pres- sure shocks and peaks, as well as to serious vibrations. The systems also need to with- stand environmental factors, such as dirt and moisture, extreme temperatures or tem- perature fluctuations. V ibrations put pressure on the components of hydraulic line systems and can cause loud noise. The latter is undesirable, particularly on construction sites in residential areas. Stauff NRC clamps significantly reduce annoying noise emissions from mobile operating machinery and from stationary loading systems, which can be harmful to people and the environment. Stauff Engineering developed the NRC Noise Reduction Clamps specifically for the vi- bra-tion-damped, and thus also noise-absorbing fas- ten-ing of tubes. A two-part elastomer insert mechani- cally absorbs any vibrations in the tube. The contour of the insert is designed in such a way that there is only a small contact surface between the tube and the clamp body, very effectively reducing sound propagation along the tube. NRC clamps for high-pressure hy- draulic hoses are also designed on a similar principle. The contour and elasticity of the insert on these NRC clamps are coordinated in such a way that the hoses can be securely routed, at the same time having a certain radial “freedom of movement”. If conventional plastic or carbon steel fasteners are used, constant microvibra- tions on the contact surfaces can lead to the rubber outer covers of the hydraulic hoses melting. The Stauff Form Evo forming system is recommended for tube connections exposed to extreme conditions. Images: Stauff