Self-propelled machines

From the components to the system, whether hydraulics, electronics or mechanics, providing you with the best solution is our challenge.

  • Comprehensive machine know-how
  • Increase in ease of use through reduced vibration and noise 
  • Improved operability through optimized design and linking of
  • Increased operating safety through reduction of interfaces
  • Integration of reliable electronic components and systems
  • Cost optimization through reductions in the diversity of variants with standard components and modular assembly
  • Active co-operation in close development partnership
  • Worldwide technical and commercial support through our global presence and local competence

Electronic controls and sensors

Universal mobile controls for

  • Central and decentralized control architectures
  • For standard and safety-critical applications (EN 13849, IEC 61508) TÜV certified
  • Graphics applications


Universal mobile displays

  • For separate control devices and with integrated control device
  • For the visualization of vehicle parameters in the driver/operator cockpit


Application-specific sensors

  • Pressure and temperature
  • Oil condition
  • Particle contamination and humidity
  • IP 67 / IP 69K
  • High shock and vibration resistance
  • Standard market electrical and mechanical connections
  • For standard and safety-critical applications (EN 13849, IEC 61508)
  • For preventative fluid servicing and increased operating safety


Portable data recorders

  • For service, commissioning and maintenance
  • For recording, displaying, processing and storing measurement data

Accumulator technology

Storage of all functional principles for every application:

  • Energy storage for brake systems
  • Smoothing of pump pulsations
  • Damping of pressure peaks
  • Chassis suspension
  • Weight equalization
  • Attachment suspension
  • Silencer for substantial reductions in noise emission

Controls, working and additional hydraulics

Mobile controls as a complete package of: hydraulics, sensors, electronics and software; everything from one source or as individual components.

HYDAC offer mobile valves for standard actuation types (manual, hydraulic, pneumatic, electronic or electro-proportional) on different hydraulic circuits and options. Whether in open or closed circuits, in monoblock or disk construction, or a combination of the two; also available with load-sensing controls. In this way we have created a modular system for flexible design of your complex controls up to approx. 180 l/min and for pressure ranges of up to 350 bar.

  • Constructional design as monoblock, in disk construction or a combination of the two,
  • setting functions with and without load pickup,
  • use with constant or adjustable pump possible,
  • a multitude of control valve pistons and characteristics is available,
  • main consumer in parallel or series switching,
  • easy integration of secondary functions,

    • of load-holding and load-lowering brake valves,
    • of the priority valve for steering (OC or LS steering),
    • of the priority valve for the brake system with integrated accumulator charging function,
    • of pressure filters and accumulators (for emergency functions),
    • of pressure and position sensors,
    • Level control

Emergency steering pump kit

Should the power supply for the steering system fail, the vehicle can be brought safely to a halt.

Tank-filter solutions

Complete systems ready for installation, optimized with reference to component protection, system cleanliness and ventilation.

Diesel tanking pump kit

This is possible on the vehicle independent of a stationary tanking system.

Filtration solutions

A comprehensive range of hydraulic and ventilation filters equipped with high-quality filter element materials ensure high operating safety and long maintenance intervals, for example:
Return filtration with return filter RFM

  • as tank-mounted or tank-integrated filter
  • for tank integration (set version) up to 2,000 l/min


Feed circuit filtration with line filter LPF

Pressure oil filtration with line filter MFM

Removal of coarse particles with Inline Filter ILF

Air filtration with ventilation filters BF, ELF, ELFL, BD

  • Broad standard product range
  • Optionally available with duo valve for tank pre-tension
  • Anti-swash protection possible
  • Version with air-drying function


Filter clogging indicators For improvement of operating safety and, if applicable, display of maintenance intervals

Brand labeling to ensure availability of spare parts Marking of the filter elements for improvement of the product identification and to ensure replacement element availability

Cooling systems

High-power and installation-optimized cooling systems are available for fulfillment of the legal requirements for noise, emissions (EURO 4, TIER 3) and savings in fuel.

  • Integrated thermo-bypass valves
  • Electric / hydraulic drives with proportional speed control available
  • Multiple combination cooling systems available

Customer-specific central hydraulics

Here individual components such as valves, accumulators, filters and partial systems can be integrated together into one block.

The advantages:

  • Space-saving
  • Reduction of leakage outwards
  • Reduced assembly time and effort
  • Economic with material
  • Tailored to the specific installation situation



for the completion of hydraulic systems:

  • Standard fittings (high pressure)
  • Manipulation-proof inductive proximity switch (high pressure-resistant)
  • Fluid level checks
  • Temperature switch TSE
  • Standard clamp 3015
  • Air/water tank mounting straps
  • 'Testpoint' connections
  • Quick release couplings