Hydromot steering units – Hydraulic steering CSUS

The Hydromot CSUS hydraulic steering units provide precise, energy-saving and safe control for commercial vehicles, agricultural machinery, forklifts, ships and industrial vehicles. Learn more...

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HYDRAULIC STEERING UNIT CSUS_/4-160 BAR
Hydraulic Steering Unit CSUS_/4-160 bar, Open Center - Non Load Reaction
  • type CSUS_/4
  • open Center - Non Load Reaction
  • ports: G 1/2'’
  • selectable displacement from 50 ccm/REV up to 400 ccm/REV
  • integrated pressure relief valves PRV, setted to 160bar, other setting on request.
  • Interchangeable to Danfoss OSPC_ON
  • type D
Schaltbild Hydraulic Steering Unit CSUS_/4-160 bar
from 206,36 EUR
176,38 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
176,38 EUR excl. 17% tax
Hydraulic Steering Unit CSUS_/5-160 bar, Closed Center
Hydraulic Steering Unit CSUS_/5-160 bar, Closed Center - Non Load Reaction - Load Sensing - Manifold fitted
  • type CSUS_/5, manifold fitted
  • closed center - non load reaction - load sensing
  • priority valve necessary (separately available)
  • ports: G 1/2'’
  • selectable displacement from 50 ccm/REV up to 400 ccm/REV
  • integrated pressure relief valves PRV, setted to 160bar, other setting on request.
  • Interchangeable to Danfoss OSPC_CN
  • type D
Schaltbild Hydraulic Steering Unit CSUS_/5-160 bar
from 221,67 EUR
189,46 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
189,46 EUR excl. 17% tax
HYDRAULIC STEERING UNIT CSUS_/5T-160 BAR
Hydraulic Steering Unit CSUS_/5T-160 bar, Closed Center - Non Load Reaction - Load Sensing - Tube fitted
  • type CSUS_/5T, tube fitted
  • closed center - non load reaction - load sensing
  • priority valve necessary (separately available)
  • ports: G 1/2'’
  • selectable displacement from 50 ccm/REV up to 400 ccm/REV
  • integrated pressure relief valves PRV, setted to 160bar, other setting on request.
  • Interchangeable to Danfoss OSPC_CN
  • type D
Scheme Hydraulic Steering Unit CSUS_/5T-160 bar
from 221,67 EUR
189,46 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
189,46 EUR excl. 17% tax
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Thanks to integrated valve functions such as pressure relief, shock and check valves, they ensure maximum safety and reliable performance even under demanding conditions. With the power-assisted design, the steering effort is significantly reduced, while energy efficiency, low noise level and long-lasting operating comfort are the main focus. Our models such as CSUS_/4-160 bar (Open Center) and CSUS_/5-160 bar (Closed Center, Load Sensing) are flexible in use and compatible with Danfoss OSPC systems. With robust materials, selectable displacement volume and emergency steering function, the steering units convince with long service life and reliable performance.

 

Hydromot CSUS Hydraulic Steering Systems – Frequently Asked Questions

What are the main advantages of Hydromot CSUS hydraulic steering systems?

Hydromot CSUS hydraulic steering systems offer numerous advantages:

  • Reduced steering effort: Increases driver comfort and reduces fatigue.
  • High safety: Through integrated valves (pressure relief, shock, make-up and check valves) as well as emergency steering capability in case of pump failure.
  • Energy efficiency: Minimized pressure losses, no oil flow in neutral position.
  • Low noise: Smooth operation with high operating comfort.
  • Long service life: Thanks to high-quality materials and maintenance-friendly design.

For which types of vehicles and applications are Hydromot CSUS steering units designed?

Hydromot CSUS steering units are suitable for many applications:

  • Commercial vehicles (trucks, buses, excavators)
  • Agricultural machinery
  • Forklifts
  • Ships
  • Industrial vehicles

Ideal for harsh environments with shocks or rough terrain where consistent steering is crucial.

What is the difference between an "Open Center – Non Load Reaction" and a "Closed Center – Load Sensing" steering system?

The systems differ in oil flow and pump adjustment:

  • Open Center – Non Load Reaction (OCNR): Oil flows directly back to the tank in neutral position. No feedback of external forces to the steering wheel. Typical for fixed displacement pumps.
  • Closed Center – Load Sensing (CCLS): Oil flow is closed in neutral position. Pump delivers only on demand via load signal. Saves energy, reduces heat build-up and wear.

What role do priority valves play in hydraulic steering systems, especially in load-sensing applications?

Priority valves such as the Hydromot HMPV ensure efficient oil distribution:

  • Ensure that the steering always receives sufficient oil.
  • Direct excess oil to other consumers.
  • In load-sensing systems, they control the pump via the LS signal for optimal oil supply.

Which valve functions are typically integrated in Hydromot steering units and why are they important?

  • Pressure relief valve: Protection against overpressure.
  • Shock valve: Dampens pressure peaks caused by external forces.
  • Make-up valve: Prevents cavitation during rapid load changes.
  • Check valve: Prevents backflow and malfunctions.

These valves increase the safety, reliability and service life of the steering units.

How is the selection of a suitable Hydromot CSUS steering unit made?

The selection depends on several factors:

  • Vehicle type & application: Trucks, excavators, ships etc.
  • Displacement volume: 50–400 cm³/rev, depending on the desired steering ratio.
  • Pressure ranges: Depending on nominal pressure and valve settings.
  • Type of steering system: Open Center or Closed Center – depending on the pump.
  • Load sensing: For maximum energy efficiency.
  • Design & installation requirements: Modular or line-mounted design.
  • Standards & safety: Compliance with legal requirements.

What maintenance work is necessary for Hydromot CSUS steering units?

  • Check and replace hydraulic fluid: Prevents wear caused by contaminated oil.
  • Inspect valves and seals: Ensures tightness and proper function.
  • Check mechanical connections: Secure fit and no damage.
  • Clean installation: Correct assembly with inspected seals.

Service life depends on usage, operating conditions and maintenance.

What does "Non Load Reaction" mean in a hydraulic steering system and what advantages does it offer?

"Non Load Reaction" means that external forces on the wheels do not feed back to the steering wheel.

  • Comfort: Steering wheel remains calm, no unexpected kicks.
  • Safety: Driver retains better control.
  • Ideal for rough terrain: Especially beneficial for agricultural and construction machinery.