This is CENO integrate pneumatic / hydraulic rotary union which combine 7 circuits 2A Electric signal and 2 channels gas with Max pressure 8Bar. Pneumatic - hydraulic integrate conductive slip ring can be divided into pneumatic conductive slip ring and hydraulic conductive slip ring according to the different transmission media. The working principle of pneumatic conductive slip ring is to transfer gas from the stator part to rotor device to complete the conductive transmission. More information please contact us