Rotary Union Solutions
Rotary Table and Center Table Options
Rotary unions reliably seal and transfer fluid such as air and hydraulic oil from stationary sources to rotating parts.

4 Passage Center Table Kit
Typically installed on the center table of pallet switching CNC machines and used to feed air and hydraulics from the pump to each pallet.
2 Passage Rotary Table Kit
Typically connected to each Rotary Table and used to feed air and hydraulics into the trunnion fixtures.
Center Table Unions
These rotary unions are typically installed on the center table of pallet switching CNC machines and used to feed air and hydraulics from the pump to each pallet.
Kits are available that include an adaptor, fittings, pressure gauge blocks, and hard lines to install hydraulic infrastructure onto your CNC.
Part # | Description (fittings not included) |
---|---|
3350-RU-CT-4-CP | (4) passage Center Table – Rotary Union |
3350-RU-CT-6-CP | (6) passage Center Table – Rotary Union |

Four Passage
Part #: 3350-RU-CT-4-CP
Max Pressure: 7,500 PSI
Max Speed: 300 RPM
Connection: #4 SAE-ORB
Passage Size: 0.187″
Diameter: 2.937″
Length: 4.828″
Through Bore: 0.375
Suitable Media: Air/Hydraulic

Six Passage
Part #: 3350-RU-CT-6-CP
Max Pressure: 7,500 PSI
Max Speed: 300 RPM
Connection: #4 SAE-ORB
Passage Size: 0.187″
Diameter: 2.937″
Length: 6.094″
Through Bore: 0.375
Suitable Media: Air/Hydraulic
Rotary Table Unions
These rotary unions are generally attached to a spacer and bracket system on the rotary table to allow air and hydraulics to the trunnion fixture.
Custom spacers are made to order based on the number of passages needed and the rotary table model.
Part # | Description (fittings not included) |
---|---|
3350-RU-RT-2-CP | (2) passage Rotary Table – Rotary Union |
3350-RU-RT-3-CP | (3) passage Rotary Table – Rotary Union |
3350-RU-RT-4-CP | (4) passage Rotary Table – Rotary Union |
3350-RU-RT-6-CP | (6) passage Rotary Table – Rotary Union |

Two Passage
Part #: 3350-RU-RT-2-CP
Max Pressure: 7,500 PSI
Max Speed: 500 RPM
Connection: 1/8″-27 NPT
Passage Size: 0.156″
Diameter: 2.437″
Length: 3.347″
Through Bore: None
Suitable Media: Air/Hydraulic

Three Passage
Part #: 3350-RU-RT-3-CP
Max Pressure: 7,500 PSI
Max Speed: 500 RPM
Connection: 1/8″-27 NPT
Passage Size: 0.156″
Diameter: 2.687″
Length: 4.147″
Through Bore: None
Suitable Media: Air/Hydraulic

Four Passage
Part #: 3350-RU-RT-4-CP
Max Pressure: 7,500 PSI
Max Speed: 500 RPM
Connection: 1/8″-27 NPT
Passage Size: 0.156″
Diameter: 2.687″
Length: 4.696″
Through Bore: None
Suitable Media: Air/Hydraulic

Six Passage
Part #: 3350-RU-RT-6-CP
Max Pressure: 7,500 PSI
Max Speed: 500 RPM
Connection: 1/8″-27 NPT
Passage Size: 0.156″
Diameter: 3.187″
Length: 6.483″
Through Bore: 0.500
Suitable Media: Air/Hydraulic