Rotary unions and electric slip rings
To complete its range, MCPI developed rotary union solutions to supply your machines and actuators with pneumatic, hydraulic or electric power.
Our standard solutions satisfy many requirements, but we remain at your disposal to develop specific solutions to meet your needs. The quality of manufacture and endurance of these products make them particularly suitable for the most demanding robotics exacting robotic and automation applications. Multi-channel rotary unions can be used with different fluids at the same time.
They can contain up to 12 fluid channels, have a central bore and can be machined to adapt to the elements around them.
JRN series
Pneumatic / hydraulic transfer
Model with 12 pneumatic passages, Ø 4mm
JRCO series
Power and data transfer
Model with 15 power passages (15A), and an Ethernet cable
JRN-X series
Transfer of fluids and energy
Standard model with 6 pneumatic passages Ø 4mm and
12 electric channels (2A)
JC series
Friction-free joints unions
High-speed models with a pneumatic channel
MCPI rotary unions enable the transmission of many types of fluids (compressed air, oil, water, etc.) between fixed supply points and rotating receiver points. Their main role is to supply actuators, and particularly cylinders or clamps. They usually comprise a stainless steel shaft and a body made from anodized aluminum. These two elements are connected by bearings separating the fixed part from the rotating part.
These electric slip rings enable the supply of currents power from 5 to 500 A, communication protocols (Profibus, ProfiNet, EtherNet, CanBus, CanOpen, etc.) and basic simple signals at speeds of up to 1,000 rpm. Like our pneumatic models, they can also have a central bore and be adapted for even the most complex projects.
For specific requirements, particularly combined fluid supplies, we have developed comprehensive solutions with the two types of union described above: pneumatic or hydraulic version, and electric version.
The friction-free rotary unions of the JC series enable the supply of a rotating receiver with compressed air, vacuum or various liquids. The friction-free design (patented) guarantees wear-free resistance over time, even at high operating speeds.
The tightness of the JC series rotary unions is ensured by the very thin slight gap in the rotating link between a rotating tube and its fixed housing. This unique design enables considerable rotation speeds that would not be possible with other technologies.
Advantages
Rotary unions and electric slip rings
RELIABILITY
COMPACTNESS
ADAPTABILITY
ROBUSTNESS
VERSATILITY
Ranges
JRN series
JRCO series
JRN-X series
JC series
Type of fluid
Compressed air – Vacuum – Oil – Water
Signal – Data – Power
Compressed air – Vacuum – Oil – Water / Signal – Data – Power
Compressed air – Vacuum – Oil – Water
Number of channels passages
1 – 12
1 – 120
2 – 68
1
passage Ø
Ø4 / Ø9
As required
Ø4 / Ø9
Ø4 / Ø6.4/ Ø9
Max. pressure
9 bar air pneu. – 50 bar hyd.
–
9 bar air pneu. – 50 bar hyd.
9 bar air pneu. – 50 bar hyd.
Min. vacuum
-0.95 bar
–
-0.95 bar
-0.95 bar
Max. intensity
–
Up to 500 A, depending on the model
2A for standard channels / Up to 500 A
–
Max. speed
220 rpm
Up to 1,000 rpm, depending on the model
220 rpm
3,500 rpm
Materials
Stainless steel shaft / Anodized aluminum body
Anodized aluminum shaft and body
Stainless steel shaft / Anodized aluminum body / Plastic or anodized aluminum slip ring
Anodized aluminum
Customization
Yes
Yes
Yes
No
Options
Customized model
- Central bore.
- Stainless steel components.
- Addition of an exhaust channel.
- Adaptation parts.
- Radial outlets.
- Specific unions.
Indexing table integration
- Supply of different workstations with fluids: compressed air, vacuum, water.
- Supply of different workstations with energy: signal, power, data.
- Compact, turnkey solution.
- Adaptation parts included.
Applications
Friction-free JC unions
Unions used to inflate and deflated truck tires for travel on sandy ground.
Multi-channel hybrid union
Union enabling 4 pneumatic passages, Ø 9mm
12 electric channels (10A) and one ProfiNet channel
Model with 4 pneumatic channels
Model with 4 pneumatic channels, designed to order, enabling the supply of vacuum for two suction cups, and compressed air for two blow guns. Special seals Specific unions included to ensure air tightness at 16 bar.
