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Helping manufacturers deliver next-generation machine performance

17 June 2016

Eaton announced the CMA Advanced Mobile Valve with Independent Metering which offers manufacturers endless possibilities to differentiate machine capabilities.

The CAN-enabled electrohydraulic mobile valve features on-board electronics and sophisticated software algorithms, which offers a valuable solution in the industry standards for intelligence, capabilities, dynamics and control. 

“Eaton’s new CMA Advanced Mobile Valve with Independent Metering dramatically streamlines and simplifies everything, from design and setup to operation and optimisation”, said Andreas Kling, Product Marketing Manager Power & Controls Products EMEA (Hydraulik) at Eaton. “Mobile equipment manufacturers are looking for products that enhance productivity and efficiency, maintain a competitive cost structure and provide real-time data.” 

As part of Eaton’s advanced class of Dynamic Machine Control solutions, the CMA valve empowers original equipment manufacturers (OEMs) to impact and improve every phase of the machine life cycle. Through intelligent features, the valve provides a whole new level of efficiency, productivity and predictive maintenance solutions, such as: 

• Improve controllability using advanced control algorithms which can be easily configured, on the spot, to a customer’s machines specific setup. Additionally, with independent metering, which allows for independent meter-in and meter-out, there is smooth and efficient load control under various load conditions.
• Enable new capabilities with the ability to seamlessly switch between velocity and force control modes. 
• Faster commissioning is made possible by a software interface which enables users to set up and tune the valve rather than swapping parts as seen in other conventional mobile valves.
• Real-time diagnostics are shared from on-board sensors which monitor pressure, temperature, position and flow, helping to detect and troubleshoot issues as they arise. 
• Hose burst detection prevents costly spills by monitoring flow to and from the service and closing the service if a leak is detected. 
• Minimise downtime with a limp mode that allows end users, in the event of sensor failure, to work at a reduced rate until the machine can be serviced. 

The designed CMA valve, available with rated flow of 90 or 200 litres per minute (LPM), improves machine performance without the need to compromise. Independent metering on the valve allows each spool to control its own work port for consistent speed and better control on services which transition between passive and over-running states. Real-time diagnostics and hose burst detection are made possible through the use of twin spool architecture, on-board sensors and data processing that provide pressure information to the user interface and implements proprietary Eaton control strategies to optimise performance. 

“The independent-metering, on-board electronics, sensor feedback, and dynamic capability of the valve allow for greater flexibility in designing control algorithms and advanced features that can be tuned for unique applications”, said Kling.

Additionally, the new valve’s software-driven setup reduces design and build costs and speeds time to market. Combined with Eaton’s Pro-FX family of electronic controls and software, the valve easily integrates with controls and allows performance optimisations to be made and tested in seconds instead of months. Pre-built software libraries and industry-standard protocols such as J1939 and CANopen also dramatically reduce development time. 

“The new CMA valve is produced in Havant, UK, Eaton Hydraulics facility in Europe.  
Eaton’s global network of certified experts provides support to manufacturers commissioning the new valve. With a broad distribution network, local support for specifying, prototyping, assembly and commissioning is available to help get new equipment to market faster“, said Kling.

To learn more about Eaton’s CMA Advanced Mobile Valve with Independent Metering, visit  

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