Model 813 Hybrid ESR / Hydraulic FRU


The Model 813 electrical and fluid rotary union consists of a single fluid pass with 600 V / 10 A and 220 V / 2 A power / signal circuit combinations. The design features sealed-for-life rolling element bearings and fiber brush technology for ultimate performance and long, maintenance free life in many challenging applications.


  • 1 pass with 1/2 inch BSPP ports 
  • Suitable for a variety of media 
  • 600 V / 10 A and 220 V / 2 A circuit combinations 
  • Rated to 145 psi [10 bar] at 250 rpm continuous service (higher rotational speeds and pressure possible) 
  • Continuous 360° rotation 
  • 12 inch lead wire


  • Optional splash seals for environmental protection 
  • Fiber brush technology provides long life and maintenance free operation 
  • Modular electrical slip ring design 
  • Transfers analog and data signals 
  • Available with Ethernet


Fluid Rotary Union Component Specifications
Operating Temperature
-20°C to +60°C
Passes Quality Size
1 x 1/2 inch BSPP
Continuous Pressure and Speed1
145 psi [10 bar] @ 250 rpm
Maximum Pressure1
180 psi [12.5 bar]
Maximum Speed1
250 rpm (intermittent or with sufficient cooling from medium)
Maximum Torque (Estimated)2
2.5 lb-in [280 N-mm]
IP64 environmental seal
Options Stainless steel construction
1 Operational life is dependent on pressure, temperature, rotational speed and duty cycle. Maximum values do not apply concurrently. Please consult the factory for actual value.
2 Break-in torque may be higher
Flexible conduit should be used to couple to the rotating component. The torque arm must be loose coupled.

Contact Us

Technical Support

Telephone:  +1-902-468-2263

Typical Applications

  • Semiconductor pick and place robot applications
  • Packaging equipment
  • Automated handling