Proxi-Ring 240W


  • Wireless slip ring
  • Circuits completely friction free
  • Fast and accurate response to load variations with 1% accuracy
  • Power channel: maximum output current 10A (total across all channels) at 24VDC
  • Communication channel: fully integrated 250kbps wireless CAN-Bus


The Proxi-Ring™ is a standalone electrical device that enables efficient transfer of power and data across an electrical rotary joint referred to as a slip ring, electric swivel, rotary electrical interface, commutator or a collector.

The Proxi-Ring™ is a next generation solution to replace existing mechanical slip rings. It provides a reliable and maintenance free alternative and does not require friction based metal and/or carbon brush contacts to enable power and data transfer.

Input power is transferred inductively using a standard 24V power supply for the transmitter. Up to 10A peak can be drawn from the PR240W power receiver with output voltage held within a tight 1% tolerance.

The Proxi-Ring™ is available as a plug and play modular system which can be used to upgrade slip rings in new or existing equipment.


  • Elimination of friction or heating between rotating and stationary circuit contacts
  • Cost effective maintenance free alternative to traditional slip rings
  • Unlimited continuous rotation
  • Corrosion and water proof – immersion rating of IP67
  • Plug and play modular system compatible with existing power supplies and CAN bus communication

Typical Applications

  • Hydraulic wind turbine pitch control systems
  • Hydraulic control valves and actuators
  • Forestry & construction machinery
  • Robot end effectors
  • Medical equipment
  • Revolving doors
  • Process automation equipment
  • Night navigation systems


Electrical Specifications

Voltage 24VDC
Number of power circuits Customizable, up to a total of 10A across all channels
Output Current 6.5A continuous, 10A Peak
Power transfer efficiency 84%

Environmental Specifications

Temperature -40°F to +140°F -40°C to +60°C
IP Protection Class 67
Operating shock 500 m/s2
Vibration 14.9 Grms

Mechanical Specifications

Operating speed 100RPM
Lead length 1.5m (STx/SRx)
Weight 5kg
Transmission Distance (z-axis) 0 – 6mm (for max power)
Housing Aluminum with acetal cap

Data Communications

Protocol CAN Bus
Data rate / No. of data circuits 250kpbs (customizable up to a total of 250kbps across all channels)


Dimensions in millimeters [inches] unless otherwise specified

PR240 mech