Wandfluh launches a new generation of compact electro-hydraulic valves – CMV(A) – that is reshaping the technological landscape of modern viticulture.
The viticulture industry is undergoing rapid technological transformation. Mechanised vineyard work, automated harvesting and increased electrification place ever higher demands on the hydraulics that power the machines. One of the most significant innovations now comes from the Swiss company Wandfluh, which has introduced a new and award-winning valve family designed for advanced vineyard machinery.
Their CMV(A) system – Compact Mobile Valves – has been developed to combine increased functionality with reduced weight and smoother, more intelligent control. The system has already received international recognition, earning the title of most innovative hydraulic product of the year 2024 by a leading industry magazine.
Lighter components – smarter machines
One of the standout features is that the valve system is available in aluminium, which is particularly beneficial for machinery operating on steep terrain. Lower component weight reduces overall fuel consumption and improves machine stability and safety. Despite the lighter material, the CMV(A) modules withstand operating pressures up to 250 bar, and up to 350 bar in the steel version.
The valve sections are modular and can be configured as:
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individual sections
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monoblocks for series production
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hybrid solutions combining both
This flexibility is crucial for manufacturers who offer a wide spectrum of machine models and customer-specific equipment variants.
Optimised for both harvesting and vineyard maintenance
Viticulture machinery – from trimming tools and pre-pruners to self-propelled grape harvesters – requires extremely precise control of both rotary and linear movements. Here, the CMV(A) system is engineered to provide:
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gentle, uniform motor start-up
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stable, vibration-free operation across the entire speed range
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load-compensated positioning of cylinders
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the ability to run multiple functions in parallel without load influence
The system’s configuration options demonstrate how CMVA-06 units can control essential grape-harvester functions such as the shaker system, conveyor belts, blower units and slope compensation.
One valve for all pump types
A major innovation is the lockable bypass pressure compensator in the inlet module. This allows the same valve platform to operate with:
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open-centre hydraulic systems (constant-flow pumps)
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load-sensing systems (LS)
This means manufacturers no longer need separate valve versions depending on the tractor or carrier’s pump type. A single valve block can be configured for both, greatly simplifying installation and service.
Integrated electronics for precision control
Wandfluh also offers integrated electronic modules, ranging from simple amplifier units to advanced CAN-bus-compatible controllers (MD2, DSV, PDS1). These enable:
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temperature-compensated current regulation
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dither functionality to eliminate stick-slip
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autonomous control and monitoring
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smooth integration into a machine’s higher-level control system
Several examples demonstrate how integrated electronics can optimise systems such as conveyor drives, screw drives and vibration units.
Focus on sustainability and efficiency
Hydraulic systems in viticulture machinery must maximise productivity while minimising energy consumption. The CMV(A) system contributes by:
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improving energy efficiency through load-sensing
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reducing machine weight and fuel consumption
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lowering heat generation and extending component life
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simplifying upgrades and customisation thanks to its modularity
This results in machinery that is not only lighter and more precise but also better suited to future digitalisation in the agricultural sector.
Developed in close partnership with machine manufacturers
Wandfluh emphasises that the CMV(A) platform is not merely a product line but part of a wider engineering partnership. The company works with machine manufacturers throughout the entire development chain, from concept to series production. This collaborative process ensures tailor-made hydraulic solutions that match each customer’s technical and commercial needs.
Summary: A valve system built for next-generation viticulture
Wandfluh’s new CMV(A) platform represents a major leap forward in hydraulic technology for viticulture. Its combination of:
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low weight
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high performance
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modular design
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compatibility with multiple pump systems
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integrated intelligence
positions the valve system as a highly competitive solution in a sector where machinery must continue to evolve towards higher precision, lower energy use and improved operational reliability.
For machine manufacturers, it shortens development cycles and enhances machine capabilities. For winegrowers, it means more accurate, reliable and sustainable vineyard machinery.
