Applications
A combine harvester is a complex agricultural machine designed to perform cutting, threshing, and grain separation in a single operation.
Thanks to the integration of mechanical, hydraulic, and electronic components, the combine ensures high productivity and excellent harvesting quality, even in demanding field conditions.
Requirements:
Header height and cutting bar adjustment
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Header tilt angle adjustment
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Driving pedals and command levers position control
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Hydraulic circuit pressure monitoring
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Hydraulic pump flow rate adjustment
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Steering angle control
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Grain unloading tube position adjustment
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Grain tank hatch opening/closing adjustment
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Requirement:
Header height and cutting bar adjustment
Precise adjustment of the cutting bar position allows the combine harvester to adapt to different ground conditions and crop heights, maintaining a constant distance from the soil. Accurate control of this parameter is essential to optimize cutting quality, reduce product losses, and increase overall productivity.
Solution:
- Installed inside the hydraulic cylinder, with no external encumbrance
- Contactless magnetostrictive technology ensuring measurement stability and long operational life
- Designed to withstand shocks, vibrations, and agricultural contaminants
Requirement:
Header tilt angle adjustment
The ability to adjust the header tilt allows the cutting angle to be optimized according to the type of crop and the operating conditions. Monitoring the tilt angle through angular position sensors enables precise and continuous control of the header attitude, ensuring better ground following and reduced grain loss.
Solution:
- Contactless Hall-effect technology, ensuring long operational life
- Resin-sealed housing for maximum protection against dust, moisture, and external agents
- High resistance to shocks, vibrations, and extreme temperatures (up to 125°C)
Requirement:
Driving pedals and command levers position control
In combine harvesters, accurate monitoring of the angular position of control pedals and command levers allows the onboard electronics to correctly interpret the operator’s intent. This ensures smooth and precise machine handling, increases productivity, and reduces fuel consumption across all operating phases.
Solution:
- Contactless Hall-effect technology ensuring long operational life
- Available with single or redundant output, and with various electrical interfaces, both analog and digital
- Resistant to shocks, vibrations, and high temperatures
Requirement:
Hydraulic circuit pressure monitoring
Monitoring the pressure within the hydraulic circuit is essential to ensure the correct functioning of the combine harvester and maintain its operational efficiency. An accurate control system allows timely detection of anomalies or out-of-range values, preventing failures that could compromise safety and cause machine downtime. This functionality not only ensures consistent performance but also helps reduce maintenance costs and extend the lifespan of hydraulic system components.
Solution:
- Compact dimensions for easy installation even in confined spaces
- High resistance to shock, vibration, and high temperatures
- SIL2/PLd certified, ensuring high standards of functional safety
Requirement:
Hydraulic pump flow rate adjustment
Regulating the hydraulic pump is a key aspect for the proper operation of the machine’s power systems. Accurate control of the valve opening and closing allows optimal modulation of fluid flow, adapting system performance to actual operating needs. This precise management improves the energy efficiency of the hydraulic circuit and reduces component wear, increasing the overall lifespan of the system and ensuring greater reliability and safety during operation.
Solution:
- Compact dimensions for easy integration in limited spaces
- High resistance to vibrations, ensuring stability and long-term durability
- Available with both analog and digital interfaces
Requirement:
Steering angle control
Solution:
- Contactless Hall-effect magnetic technology, ideal for repetitive movements and long operational life
- Compact dimensions and easy installation
- High resistance to shocks and vibrations, ensuring consistent performance over time
Requirement:
Grain unloading tube position adjustment
RK-5 linear position sensor
- Installation directly inside the hydraulic cylinder, with no external encumbrance
- Contactless magnetostrictive technology, eliminating wear and ensuring long service life
- High resistance to shocks, vibrations, and contaminants
GRA rotary sensor with shaft
- Available with single or redundant output for applications with high safety requirements
- Supports analog and digital interfaces (CANopen, SAE J1939) for versatile integration
- Robust design, resistant to shocks and vibrations
Requirement:
Grain tank hatch opening/closing adjustment
Solution:
- Contactless Hall-effect technology ensuring long operational life
- Resin-sealed housing for maximum protection against dust, moisture, and external agents
- High resistance to shocks, vibrations, and extreme temperatures (up to 125°C)
Operating principle
Requirements and technology
- Adjustment of the header height and cutting bar
- Adjustment of the header tilt angle
- Control of pedal and lever position
- Steering angle control
- Monitoring of hydraulic circuit pressure
- Regulation of hydraulic pump flow rate
- Adjustment of the grain unloading tube position
- Adjustment of the grain tank hatch opening/closing
