Rotoflux supplies a range of rotary unions suited to any industry need. They can operate at speeds up to 20 000 rpm, pressures up to 400 bar and temperatures up to 340°C. The high speed range is available in a dry run version and will not fail if the flow of fluid runs dry. It is used extensively in the machine tool industry.
Rotary unions function by connecting to an input and securing onto another mechanism while allowing a moving connection. They provide a seal between a stationary supply passage (such as pipe or tubing) and a rotating part (such as a drum, cylinder or spindle) to permit the flow of a fluid into and out of the rotating part. Applications include machine tools, agricultural equipment, converting, plastics, printing and mining.
The heart of the rotary union is the seal, which prevents the medium from leaking from the rotary union while it is in operation. Seal faces are micro-lapped for a perfect mating. The Rotoflux balanced design keeps the pressure on the seal faces constant, regardless of the fluid pressure. Three springs made from inox steel ensure a constant force at the most appropriate specific pressure on the seal faces. Only high quality materials are used for Rotoflux unions and each one undergoes stringent testing before dispatch.
Careful control of the manufacturing process guarantees that all unions meet the technical specifications required to transfer fluid under pressure or vacuum from a stationary inlet to a rotating outlet, preserving and isolating the fluid connection.
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