Rotary unions are also referred to as:

  • Rotating Unions
  • Rotating Joints
  • Hydraulic Joints
  • Rotating Couplings
  • Rotating Swivels
  • Hydraulic Swivels
  • Rotary Joints
  • Rotary Couplings
  • Hydraulic Couplings
  • Rotary Swivels
  • Swivel Joints
  • Fluid Swivels
  • Swivel Unions
Rotary Unions, Swivel Joints, Rotating Couplings

Electrical Slip Rings

An electrical slip ring is a rotating assembly used to transfer power, control circuits, or data (analog / digital) from stationary inlets to rotating outlets.


DSTI offers a wide range of stock electrical slip ring products and integrated options including protective covers, pin connectors, and cordsets.



ES Series Electrical Slip Rings

ES Series Electrical Slip Rings

  • 6, 12, 18, 24, 36, & 56 Circuits
  • 2A - 120V / 210V
  • Compact Design
  • Low Torque
  • Gold-on-gold Contacts
ESM Series Electrical Slip Rings

ESM Series Electrical Slip Rings

  • 9, 15, 24, 32, 44, & 52 Circuits
  • 2A / 5A / 10A - 210V
  • Compact Design
  • Low Torque
  • Gold-on-gold Contacts
EST Series Electrical Slip Rings

EST Series Electrical Slip Rings

  • 6, 12, 18, & 24 Circuits
  • 2A / 10A - 600V
  • 1.5" Thru Bore
  • Fiber Brush Contacts
  • Maintenance-free Operation