PISTON MOTORS AND TWO-SPEED PUMPS, BOSCH REXROTH A6VM/A6VE/A6VMM/A6VEM/A10VE/A10VM
Piston motors and two-speed pumps - FP Trasmissioni
Introduction to Piston Motors and Two-Speed Pumps
The piston motors and two-speed pumps represent the pinnacle of efficiency in modern hydrostatic transmission systems. This technology allows for varying the ratio between torque and speed without the need for complex mechanical gearboxes, offering unprecedented operational flexibility. In an increasingly demanding market, having a system capable of adapting instantaneously to the workload is a fundamental successful strategy.
Choosing piston motors and two-speed pumps means focusing on a valuable solution that optimizes the performance of the operating machine: high torque for digging or climbing phases and high speed for rapid travel. At FP Trasmissioni, we consider these components the number 1 choice for those desiring more productive and less energy-consuming machinery.
The Value of Two-Displacement Technology
The heart of the system lies in the ability of the piston motor and two-speed pumps to modify the swash plate angle or the piston stroke via a hydraulic or electric signal. This displacement change occurs smoothly, ensuring effective operation free from mechanical shocks that could damage the transmission.
The technical advantages of this valuable configuration include:
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Work Cycle Optimization: Reduction of downtime during empty travel thanks to the “high speed” mode.
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Maximum Tractive Effort: In “low speed” mode, the motor expresses its full torque to overcome obstacles or steep gradients.
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Fuel Savings: By always working at the point of maximum efficiency, the load on the machine’s thermal engine is reduced.
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Versatility: A single component covers the needs of two different mechanical configurations, simplifying the vehicle’s design.
Effectiveness of Two-Speed Systems in Earthmoving
The most common application of piston motors and two-speed pumps is found in the tracked undercarriages of excavators. Here, the ability to switch from digging mode (slow and powerful) to travel mode (fast) is a critical success factor for the operator.
The effectiveness of these systems is measured in response speed. The two-speed piston motors from FP Trasmissioni are designed to withstand thousands of gear change cycles under load, ensuring that driving precision remains constant throughout the component’s service life. The robust construction ensures that, even in extreme mud or dust conditions, the switching between the two speeds always remains reliable.
Integration Between Pumps and Motors: A Successful Synergy
To achieve maximum performance, the coupling between piston motors and two-speed pumps must be studied in every detail. A pump capable of varying flow in synergy with a dual-displacement motor allows for the creation of an extremely smooth and powerful continuously variable hydrostatic transmission.
At FP Trasmissioni, we offer consultancy to create valuable packages that include:
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Axial Piston Pumps: Designed to handle the high pressures required by two-speed systems.
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Plug-in Integrated Motors: For a perfect fit into the wheel final drives, minimizing overall dimensions.
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Dedicated Control Valves: To manage the speed change signal safely and protected from pressure peaks.
Choosing a complete successful system means reducing the risks of technical incompatibility and maximizing the reliability of the entire hydraulic circuit.
Application Areas and Specialized Maintenance
The technology of piston motors and two-speed pumps is the number 1 solution in several professional fields:
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Excavators and Mini-excavators: For managing the dual travel speed (the classic “hare” and “tortoise” modes).
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Wheel Loaders and Skid Steers: Where rapid maneuverability must alternate with heavy pushing phases.
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Aerial Platforms: To ensure fast movements on-site and millimeter precision during positioning.
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Special Agricultural Machinery: For hydrostatic transmissions requiring flexibility on variable terrain.
To maintain system effectiveness, the maintenance of piston motors and two-speed pumps requires particular attention to fluid cleanliness and the calibration of pilot pressures. At FP Trasmissioni, we provide all necessary support and original spare parts to ensure that your transmission remains valuable in the long term.
Conclusions on the Technical Choice
Investing in piston motors and two-speed pumps is a successful choice for any manufacturer or maintenance provider aiming for excellence. The ability to modulate power and speed in real-time is what distinguishes a standard machine from a superior valuable solution.
The FP Trasmissioni team is ready to analyze your technical specifications to identify the best setup for pumps and two-speed motors. Contact us for consultancy or to discover all the technological innovations in the hydraulic sector.
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