MJ - Hollow Rotary Unions

Pnuematic/Hydraulic rotary union is designed for rotary apparatus and it can provide safe and stable hybrid transmission for multi-passage air pressure and fluid media. With modular design, it is more stable and reliable. Pnuematic/Hydraulic rotary union can support positive pressure 90MPa and negative pressure -10MPa. With the through bore design,it can pass wires or pass other devices. 


  • Bore size 20mm,30mm,rotating with 360 degrees, meanwhile transmitting pneumatic and hydraulics.
  • Supporting 1/2/3/4/5/6/8/10/12/16 passages pneumatic/hydraulic.
  • Standard port size have M5,G1/8,G1/4,G3/8,G1/2,G3/4,G1" and so on.
  • It can transfer media as compressed aird,vacuum,hydrogen,nitrogen,steam, cooling water,hot water,oil and so on.
  • High-speed and high-pressure rotating jointcan be customized on request.
Model# Pic Passage NumConnection SizePipe SizeBore Size Details
MJ1020
1G1/8 G1/46-10mm20mm Details>>
MJ1030
1G1/8,G1/46-10mm30mm Details>>
MJ2020
2G1/8,G1/46-10mm20mm Details>>
MJ2030
2G1/8,G1/46-10mm30mm Details>>
MJ3020
3G1/8,G1/46-10mm20mm Details>>
MJ3030
3G1/8,G1/46-10mm30mm Details>>
MJ4020
4G1/8,G1/46-10mm20mm Details>>
MJ4030
4G1/8,G1/46-10mm30mm Details>>

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