Hydraulic steering units

Open center and load sensing models.

Features

• Low noice
• Good steering controlability
• Low steering torque 0.8 to 3.0 N
• High back pressure possible up to 40bar
• One or several built in valve functions possible: pressure relief, shock and suction in L + R, check valve in P and in LS

Target applications

• Small tractors
• Backhoe loader
• Road building machinery
• Combines and harvesters etc.

The OSPD is a dual displacement steering unit, which assures easy maneuverability of machines of most sizes. Each unit in the complete steering range combines superior performance with the highest standards of safety. As well as operator comfort and low noise levels. Due to flexibility in combination of rotary meters, OSPD can be offered with many different ratios. These are between emergency steering and normal steering displacement. In addition, ratios between 1:2 and 1:7. OSPD also can be offered with external shift of displacement. In this way can be selected between different displacements to improve comfort and productivity.

Features

• The OSPD has 2 rotary meters (gear wheel sets). In the case of no pump supply only one rotary meter is active for emergency steering. In normal steering situations both rotary meters are active
• With OSPD even heavy vehicles can in many cases fulfill legislations and be steered without the emergency steering pump
• Ratio between normal steering displacement and emergency steering displacement from factor 2 up to 7
• Low noice
• Good steering controlability
• Low steering torque 0.8 to 3.0 N
• High back pressure possible up to 40bar
• One or several built in valve functions possible: pressure relief, shock and suction in L + R, check valve in P and in LS

Target applications

• On-road machinery etc.

OSPF is the perfect steering units for small to medium size fork lift trucks and compact wheel loaders.

Features

• Extremely good in controlling negative steering forces. Therefore, no risk of runaway even when only using one differential cylinder on articulated vehicles
• Higher max. steering speed, limited only by the capacity of the pump and the pressure setting
• Low noice
• Good steering controlability
• Low steering torque 0.8 to 3.0 N
• High back pressure possible up to 40bar
• One or several built in valve functions possible. There are pressure relief, shock and suction in L + R and check valve in P
  
  

Target applications

• Forklift trucks
• Combines etc.

The OSPL has an extended maximum steering pressure up to 240 bar (P-T). It is only available in LS versions (static and dynamic). It has been developed especially for large displacement in order to minimize flow loss. It is therefore extremely suitable for large vehicles.

Features

• Cover large displacements
• Higher steering pressure
• Low noise level
• Low pressure drop
• Low steering torque
• One or more built in valve functions
• Good steering controlability
• Low steering torque 0.8 to 3.0 N
• High back pressure possible up to 40bar
• One or several built in valve functions possible: shock and suction in L + R and check valve in P

Target applications

• Large forklift trucks
• Wheel loaders

The OSPU is the latest addition to the Danfoss dual displacement steering product line. It is complementing the OSPD for responsive, easily maneuverable machines of most sizes. Each unit in the complete steering range combines superior performance with the highest standards of safety. As well as, operator comfort and low noise levels. Danfoss has designed the OSPU as an alternative to dual displacement steering units. Due to its unique flow-amplifying capability (up to 1:4), the unit delivers best-in-class manual steering over a wide application range. This leads to that the compact design is easing installation. A new progressive displacement option secures smooth steering performance in both slow and fast steering modes. At the same time, maintaining optimal controllability, precision and operator comfort. The steadily increasing flow, which corresponds to steering speed, contributes to reduced operating costs.

Features and benefits

• Displacement independent of steering speed
• Amplification factors: 1:2, 1:2.5, 1:3 or 1:4 linear, or 1:2 progressive amplification versions
• Steady increase in progressive flow at higher steering speed
• Increases productivity and driver comfort
• Installation Benefits
• Small installation dimensions

Target applications

• Tractors
• Backhoe loaders
• Combines
• Telescopic handlers
• Wheel loaders etc.

For small, low HP tractors, or any application needing a steering unit with standard options, good performance, and manual steering capabilities.
The VSP steering product combines competitive cost with good performance, high quality, and reliable delivery.

Features

• Variants: ON, OR, LS
• Displacements: 50-400 cc/rev
• One or more built-in valve functions:
  pressure relief, shock, suction, and check valve in pump connection and in LS line
• Port threads as required to DIN, ISO or SAE standards
• Low steering torque

Target applications

• Tractors
• Forklift trucks
• Backhoe loaders
• Telehandlers
• Combines

The VSPP is a steering unit with integrated priority valve inside the envelope of the standard VSP housing. This brings about a very compact solution minimizing installation space, cost and time. The VSPP is suitable for small, low HP tractors, or any application needing a steering unit with standard options, good performance and manual steering capabilities. The VSPP steering unit combines competitive cost with good performance, high quality and reliable delivery. 

Features

• With integrated priority valve, max pump flow: 80 l/min
• Variants: LS dynamic
• Displacements: 50-400 cc/rev
• Built-in valve functions: pressure relief, shock, suction and check valve between priority valve and steering unit part, check valve in LS line
• Port threads as required to DIN or ISO standards
• Low steering torque
• Low pressure drop

Target applications

• Tractors
• Forklift trucks
• Backhoe loaders
• Telehandlers
• Combines
• Compact and mini wheel loaders

Danfoss' Series 5 steering control unit (SCU) is the perfect low-flow, low-pressure solution for smaller equipment.

Features

• Best-in-class steering feel with crisp centering
• Balanced architecture that reduces vehicle drift
• Lower pressure drop provides better efficiency than competitive units
• Widest displacement and highest pressure rating among similar frame size SCUs

Target applications

• Power beyond
• STC direct porting
• Integral column
• EPACS steering control technology

Series 25

The Series 25 steering control unit provides one of the smoothest steering experiences you’ll find.

Features

• Balanced architecture and thicker sleeve design increase reliability and provide smooth performance, even under transient pressure and thermal conditions
• Symmetrical valving increases balance for precise servo response and uniform steering action, while progressive valving reduces operating costs
• Seal and centering spring designs provide positive, low-effort steering for excellent vehicle control
• Optional Q-Amp and wide angle technology maximize steering control
  
  

Target applications

• Loaders
• Dump trucks
• Mining equipment
• Transporters

Series 40

The Series 40 steering control unit makes getting more responsive, reliable steering in a compact package more cost-effective than ever before. 

Features

• Balanced architecture and thicker sleeve design increase reliability and provide smooth performance, even under transient pressure and thermal conditions
• Symmetrical valving increases balance for precise servo response and uniform steering action, while progressive valving reduces operating costs
• Seal and centering spring designs provide positive, low-effort steering for excellent vehicle control
• Optional Q-Amp flow amplification maximizes steering control

Target applications 

• Loaders
• Dump trucks
• Mining equipment
• Transporters