HYDAC Load-sensing main control valves
How mobile applications work more precisely and efficiently
Increase your productivity with our load-sensing valves
Precise motions & repeatable execution of work functions: learn more about the load-compensated HYDAC valve solutions for main controllers in our brochure.
Precision & accuracy Simple machine operation combined with increased productivity
In mobile machines in particular, many different actuators work in parallel. In addition to the difficulty of setting movement speeds, there are also often unwanted speed variations. The precision and accuracy of the work suffer as a result of this. With our load-sensing main control valves, we guarantee simplified machine operation with a simultaneous increase in productivity.
Flexibility & modularity Tailor-made solutions lead to reduced development times
As versatile as mobile machines are – the different types of machines and configuration possibilities lead to a high number of valve variations. This is all the more reason why there is a desire for standardised modular valve systems which can easily be adjusted to a wide range of machine needs. With the HYDAC load-sensing control blocks, our experts offer you a tailor-made platform and modular solutions – allowing you to reduce your development times.
Space savings & energy efficiency A compact design saves installation space and resources
New regulations increase the need for energy-saving solutions as well as simple and space-saving solutions. With HYDAC, you can achieve a high performance density without having to compromise on energy efficiency: our compact valve block design saves important installation space and therefore reduces your resource consumption.
Our solution: HYDAC load-sensing valves for your machine controlDiscover our load-sensing control blocks in the HYDAC LX-3, LX-6 and LCX-6 valve series
LX-3 (nominal flow rate of 80 l/min at the work port) and LX-6 (nominal flow rate of 160 l/min at the work port) are load-compensated valves with upstream pressure compensators for systems with fixed or variable displacement pumps. Up to ten functions can be controlled independently of each other as long as the maximum pump flow rate is higher than the required flow rate. The load-sensing valve systems were developed with a focus on high precision, fine control and energy efficiency. Whether it's cranes, harvesting machines, machines with crawler tracks or other mobile machines – the flexible structure and the compact design make them suitable for a wide range of applications.
The LCX-6 expands our range in the form of a more compact and cost-efficient version of the LX-6 valve which focuses on the core functions of load-sensing valves. The first and last working section combine inlet plate functions and end plate functions in a space-optimised and weight-optimised design. The LCX-6 monoblock offers a flexible solution for additional functions in mobile machines such as excavators and wheel loaders.
"Load-sensing" means exactly what you would expect it to mean. And this is exactly how the valves work: they detect the load pressures of the actuators in mobile machines. Pressure compensators use the information and ensure that the desired flow rate is provided. In this way, every actuator receives the exact flow rate that is required to perform the work functions without restrictions. The goal: precise, repeatable execution of work functions – for maximum results.
Ready for the automation of mobile machines with the Intelligent Control Unit (ICU)
With the ICU control unit specifically developed for the load-sensing valves, HYDAC offers a future-proof complete solution for automated or electrified mobile machines and off-highway vehicles. This combination enables maximum precision, TÜV-certified safety and reliability, even under extreme conditions, and is the ideal basis for automation and assistance systems.
With the help of efficient CAN bus communication, we make your mobile machine fit for the future.
Experience the future of valve control with HYDAC. Find out more about the product now
The advantages for your machine control at a glance
Impressive fine controlPrecise motions & simple execution of work functions
Using the example of a loader crane
Loader cranes have to meet high requirements. In addition to the precise positioning of loads, repeatable controllability of widely fluctuating loads is crucial. Compared to conventional solutions, the resolution of the HYDAC components, which is almost twice as high, allows for an excellent fine control range. This leads to gentle cylinder and motor movements – which in turn leads to much more precise machine movements and simpler execution of work functions.
Parallel operationOperation of several machine functions at the same time
Using the example of a loader crane
Let's stick with the example of the loader crane – the complex work is done by different actuators at the same time. The flow-optimised sectional pressure compensator uses the respective load pressure and safely adjusts the flow rate for the individual actuators in parallel operation. This can be seen clearly with the following example: independent of actuator 2 being switched on, the flow rate at actuator 1 remains constant at the set flow rate of 1 l/min with great precision. This is despite actuator 2 requiring a considerably higher pump pressure. This aspect vastly increases the productivity of the work processes.
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