Rotating unions for dry rotation

ON-OFF series rotary unions are designed for the passage of refrigerant fluids through the spindles of machine tools. This kind of rotary union can operate without the passage of fluids to high rotation speed of 20,000 RPM. The fixed external part is made of anodized aluminium and the rotary part is made of nickel plated carbon steel.


  • 100% made in Italy, entirely manufactured in our plant
  • Standard versions always on stock!
  • Customizable on request

Swipe left and right for the internal and external view of the rotary union


ON-OFF Series – Data sheet

Download our catalogue for technical specifications

ON-OFF Series – Axial version

ON-OFF Series – Radial version