Hydraulic/Pneumatic Rotary Joint (Can Be Integrated with Electricity)

Number of circuits:2/4/6/8/10/12

Amperage:2A per circuit or higher

Insulation resistance:≥500VAC@50Hz

Cable length:250mm(optional)


LPP rotary joints can make 360 degree rotation. The medium includes inert gas such as compressed air, steam, vacuum, nitrogen, hydrogen, etc. It can integrate slip ring to transmit various control signals. The sealing surface and seal ring are made of special materials, which have wear resistance, long service life, corrosion resistance and no leakage. Customers can install LPP rotary unions independently according to the application environment.


◎Resistant medium: compressed air, nitrogen and other inert gases;

◎Small size, light weight, low torque.

◎Integrated power supply, switching signal, Ethernet, USB, industrial bus, sensor and other signals;

◎Adapted parameters of rotary union and integrated slip ring can be customized according to customers’ requirements;

◎The joint and tube diameter can be customized according to customer requirement;


◎Internal and external diameter/number of circuits/current and voltage/wire length/housing material and color/protection level/signal and power can be transmitted separately or in combination.

1. the installation position of the slip ring is matched with the device. It is necessary to connect the air line on the rotor side to make sure there is no leakage.

2. check the concentricity of the rotor before installation and ensure the smooth rotation of the slip ring.

3. The stator is screwed into the anti-rotation rod through the anti-rotation hole to stop the rotation, and also can be customized according to the customer’s requirements.

Precautions for installation of rotating unions:

1. Rotating unions should be protected from shocks and falls during delivery and storage to avoid damage to the interface and internal parts.

2 . the screws for fastening must be loosened.

3. when assembling the rotating unions, make sure that the thread direction of the inner and outer pipes matches the rotation direction of the drum, and the thread rotation direction of the inner and outer pipes also matches.

The inlet and outlet of the rotary joint should be connected directly to the hose as far as possible. The transmission