Abstract: The invention relates to a heat dissipating device, especially for high-performance industrial ultrasonic transducers. The aim of the invention is to produce a device that enables high-performance ultrasonic transducers to operate continuously in environments with high heat and/or high humidity, whereby heat is dissipated in an explosion-proof embodiment in a more effective manner. This is achieved by surrounding the ultrasonic transducer (1) with a closed cooling system comprising a layer (2) that absorbs vibrations, e.g. a silicon rubber layer, and a layer that dissipates heat (3), e.g. silica sand.