Series 25 Steering Control Unit

Series_25_Steering_Unit Series 25 SCU
Reduce manufacturing costs and increase steering responsiveness with the Series 25 Steering Control Unit (SCU). Featuring patented balanced architecture and wide angle designs for added reliability, the Series 25 SCU also comes fully loaded with other Eaton technologies, including Q-Amp®, a pilot pressure port, integrated valves and a high-capacity Gerotor assembly for maximum capacity—all in an incredibly small package. That means operators get the precision control they want and engineers get the improved design efficiencies they need.
 
 

Product Features

 
  • Patented wide angle and balanced architecture designs increase reliability and reduce system costs
  • Optional pilot pressure port can be used for applying pressure to priority valve as well as for diagnostics
  • Symmetrical valving increases balance for precise servo response and uniform steering action
  • Thicker sleeve design provides stability, especially under pressure- and thermal-transient conditions
  • Eaton Q-Amp technology maximizes steering control
  • High-capacity Gerotor provides ample fluid displacement
  • Integrated valves and load-sensing capabilities and match performance to load requirements
  • Available with open- or closed-center designs
 


Technical Information

  • Max System Pressure 241 bar (3500 PSI)
  • Max Back Pressure 21 bar (300 PSI)
  • Rated Flow 95 l/min (25 GPM)
  • Max Flow 15 l/min (40 GPM)
  • Max System Operating Temperature 93°C (200° F)
  • Max Differential Between Steering Unit and System Temperature 28°C/50°F
  • Input Torque
    • Powered – 2.8 – 3.4 Nm @ 6.9 bar back pressure (25 – 30 lb-in @ 100 PSI back pressure)
    • Non Powered Manual Steering is not possible without hydraulic power
  • Rotation Limits - None
  • Fluid – ATF Type A and most petroleum based fluids
  • Recommended Filtration - ISO 18/13 cleanliness level
  • Rotation Limits - None
  • Fluid - Petroleum Based Fluids
  • Recommended Filtration - ISO 18/13 cleanliness level
  • Check Valve for Manual Steering – Yes
  • Optional Relief Valve Settings
    • 40 bar (580 PSI)
    • 50 bar (725 PSI)
    • 63 bar (914 PSI)
    • 70 bar (1015 PSI)
    • 80 bar (1160 PSI)
    • 90 bar (1305 PSI)
    • 100 bar (1450 PSI)
    • 125 bar (1812 PSI)
  • Port Options
    • 9/16-18 SAE O-ring
    • 9/16 Plug-O
    • -06 STC
    • 3/8 BSP Straight thread ports
 
 

Applications

  • Articulated Vehicles
    • Loaders
    • Scrapers
    • Skidders
    • Ag Tractors
  • Fixed Frame Vehicles
    • Large Front End Loaders
    • Graders
    • Mining Trucks
    • Articulated Dump Haulers
    • Transporters
 
 

 
 

Featured Literature


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Eaton Steering Solutions for Mobile Off-Highway
An overview of Eaton’s complete line of steering control solutions for mobile off-highway applications.



Catalogs

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XCEL 45 Steering Unit Catalog
Various system options for the XCEL 45 Steering Unit offer you incredible design flexibility. Publication: E-STCU-CC002-E
 
 

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Eaton’s Hydraulic Steering Units - Full line catalog
Publication C-STOV-MC001-E2



Articles & White Papers

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Advancements in Lift Truck Steering
Check out this reprint from Lift Access Magazine that asks the question, "Is variable rate steering the next big thing?" By Kevin Thayer, Eaton
 
 

 




Videos

     
 




Additional Information

Steering Sizing Calculator – Enter your information on this online steering sizing calculator tool. Calculations given are guidelines only and need to be verified by the manufacturer.


Configure Product

Find the exact product configuration that meets your needs with the Eaton product configurator. The configurator is easy to use and helps you create a product that meets your specifications from end-to-end.


 
 
What You See Is What You Get Element

Contact Me

Please use the form below to submit your request, questions or comments. We look forward to hearing from you and an Eaton representative will contact you shortly.

To locate a local distributor, visit Eaton’s Distributor Locator.

NOTE: Due to a backlog in our technical support department and our continuous effort to improve our customers’ experience, please refer to your nearest distributor with any technical questions. You can locate the nearest Eaton Hydraulics distributor by clicking on the link above. Thank you for your understanding.