Rotary union slip ring can rotate 360° to conduct electricity. Specifications such as circuits and current, port and pipe size can be customized as required.
Application: Automation equipment, industrial turntables, solenoid valve magnetic sensors, robots, engineering machinery, automated production lines, CCTV video surveillance, medical equipment, military radar and other equipment.
8 Passage Rotary Union Specification
Model | CHN-3008006 |
Number of Passages | 8 Passages |
Thread Port | G1/8" |
Pipe size | 6~8mm |
Torque | <0.8N.m |
Voltage Range | Power: 0~440VAC/VDC Signal: 0~440VAC/VDC |
Lead Wire Spec. | Power:AWG17# Silverplated teflon wire Signal: AWG22# Silverplated teflon wire |
Max. Speed | 250rpm continously, 1000rpm intermittently |
Working Temp. | -30℃~80℃ |
Work Humidity | 0~85% RH |
Contact Material | precious metal |
Housing Material | aluminum alloy |
Working Life | 20 millions for ref (depends on working conditions) |
Max. Pressure | 1Mpa, Vacuum -1.5kPa |
Insulation Resistance | Power: <500MΩ/300VDC Signal: <500MΩ/300VDC |
Lead Wire Length | standard 250mm (can be customized) |
Certification | CE, RoHS |
Insulation Resistance | 500VAC@50Hz,6s |
Electrical Noise | <0.01Ω |
IP Grade | IP51 |
Weight | About 1 kg |
Note: Please contact us if you need the flange. The package includes the controller.
8-Passage Electrical/Pneumatic Rotary Union Dimension Drawing

Rotary Union Installation Diagram

Tips: Rotary union leakage causes and treatment methods
Cause of Leakage | Treatment Method |
The concentricity of the hollow shaft with the rotating body is not enough. | Check size and accuracy of the slip ring and adjust the fixed connection to the rotating body. |
The accuracy of the fitting machine is low (large end face coincidence, radial, axial clearance), large vibration. | Find the reason and repair the fitting equipment. |
Foreign matter such as slurry and dirt enter the friction pair contact surface. | Add a filter or decontamination device and modify the type of rotary union. |
The pressure, temperature, speed, etc. used exceed the rated range of the selected rotary union. | Analyze the operating conditions, contact rotary union manufacturers, and change the type of rotary union. |
Electrical/pneumatic rotary unions are suitable for fluid medium including air, hydraulic, vacuum, steam, hot water, cooling water, etc. 8-passage, each passage does not interfere with each other. Cheap slip ring can transmit current/signal of 12/24/36/56 wires 2A or 12/24 wires 5A, number of circuits and current are customizable.