Liugong 30B1067 Pressure Sensor: The "Precision Perception Hub" for Intelligent Monitoring in Construction Machinery

1. High-precision sensing technology enables millisecond-level pressure capture.

Construction machinery hydraulic systems frequently experience pressure fluctuations—such as when a loader lifts or an excavator digs, the pressure can momentarily change by as much as 10–30 MPa ), placing extremely high demands on the sensor's monitoring accuracy and response speed. LiuGong 30B1067 The pressure sensor employs “ Diffused-Silicon Piezoresistive Sensing Chip +  Digital Signal Processing ”  Technology enables precise capture of pressure signals: The sensing chip uses imported high-precision silicon wafers, achieving pressure measurement accuracy as low as ±0.25% FS (Full scale), capable of precise identification 0.1 MPa Subtle pressure variations are monitored to prevent equipment from stalling or overloading due to measurement errors; paired with LiuGong's independently developed signal amplification and filtering chip, ensuring minimal data transmission latency. ≤1ms , achieving “ Pressure changes trigger signal responses. ”  Millisecond-level feedback—whether it’s the dynamic pressure peaks in the hydraulic system or the stable static pressure maintained by the braking system—can transmit accurate data in real time, providing a reliable basis for decision-making in the equipment control system. Testing has shown that this sensor performs continuously 1000  In hourly dynamic pressure monitoring, data deviations are consistently kept within 0.3% Within, far superior to the industry ±0.5% FS The average standard.

II. Wide-range measurement and multi-scenario adaptation, covering full-system monitoring of equipment

Construction machinery systems have significantly different pressure monitoring range requirements—for example, the hydraulic system's range 20–40 MPa , Brake System Range 0-10MPa ), LiuGong 30B1067 The pressure sensor features a wide-range design and supports 0-50 MPa The pressure measurement range can be flexibly adapted to meet the pressure monitoring needs of various components, such as equipment hydraulic systems, braking systems, and steering systems. For different system interface specifications, the sensor provides M12×1.5 、 G1/4 Various threaded interfaces, with sealing achieved through V Fluororubber sealing ring, oil-resistant temperature range - 20℃ To 120℃ , once installed, effectively prevents leakage of hydraulic oil or brake fluid, ensuring reliable sealing even under high-pressure conditions. Additionally, the sensor output signal supports 4-20mA Analog signals and CAN The bus supports two digital signal modes, enabling seamless integration with LiuGong's intelligent control system and third-party equipment management platforms. This allows for real-time display, storage, and remote monitoring of pressure data, meeting the dual needs of local device operation and remote maintenance.

3. Strong environmental adaptability, resisting erosion from complex operating conditions

Construction machinery often faces harsh operating environments such as high temperatures, vibration, dust, and mud and water, where the environmental adaptability of sensors directly affects their service life and monitoring stability. LiuGong 30B1067 The pressure sensor enhances its protective performance in terms of both structure and material: the sensor housing is made of 316L Made from stainless steel, this material undergoes passivation treatment to deliver exceptional corrosion resistance, effectively guarding against the侵蚀 of hydraulic oil, brake fluid, and muddy water commonly found on construction sites. Its surface hardness reaches HV200 Above, to prevent shell deformation caused by collisions; the internal circuit module utilizes IP67 Level-protected waterproof and dustproof design, with moisture-resistant insulating adhesive coating the circuit board—allowing it to function even in - 40℃ To 85℃ Extreme temperature environments or 95% RH Even in highly humid environments, it can still maintain circuit stability, preventing sensor failure caused by environmental factors; furthermore, the sensor achieves GB/T 2423.10-2019 Vibration Testing 10-2000Hz , Acceleration 200 m/s² ), capable of withstanding the intense vibrations during equipment bumpy operations, ensuring that pressure monitoring data remains uninterrupted and free from deviations.

4. Long-lasting, durable design reduces maintenance and replacement costs.

Frequently replacing sensors not only increases maintenance time but also drives up equipment operating costs. LiuGong 30B1067 Pressure sensors significantly extend their service life by optimizing the lifespan and structural reliability of core components: the sensing chip utilizes “ Stress-free packaging ”  The process minimizes stress damage to silicon wafers caused by temperature fluctuations and vibrations, enabling chip lifespans of up to 20000  More than hours; the sensor's internal terminal blocks feature gold-plated contacts with ultra-low contact resistance. ≤10 mΩ , preventing signal transmission interruptions caused by contact oxidation; furthermore, the sensor's pressure interface and sealing structure have undergone 10  10,000-cycle pressure test 0-50 MPa Repeatedly loaded), with no leakage and no structural damage, ensuring durability even under long-term high-pressure conditions. According to real-world application data, this sensor boasts an average lifespan of 30000  Hours, extended compared to industry-standard sensors 50% Above all, reducing the number of downtime maintenance events helps users lower their overall operational and maintenance costs.

5. Intelligent Self-Diagnosis for Faults, Strengthening the Equipment's Safety Defense System

As a critical component for equipment safety monitoring, LiuGong 30B1067 The pressure sensor is equipped with an intelligent self-diagnosis function: When the sensor detects circuit shorts, signal drift, or out-of-range conditions, it automatically sends a fault warning signal to the equipment control system while simultaneously outputting a preset safety signal value—preventing equipment malfunction or loss of control caused by sensor failures. The sensor also features “ Overpressure Alarm ”  Functions can pre-set alarm points based on the safety pressure thresholds of different systems (e.g., overpressure in hydraulic systems). 35 MPa When an alarm is triggered, the device immediately activates its audible and visual alert upon detecting that the monitored pressure reaches the threshold, while also restricting related actions to prevent system overload and potential damage. Additionally, the sensor supports a data logging feature, enabling it to record recent 1000  Abnormal pressure data records (including time and pressure values) allow maintenance personnel to trace the cause of failures and reduce troubleshooting time.

6. Full-process quality control verification to ensure monitoring reliability

Liugong vs. 30B1067 Pressure sensor implementation “ From R&D to factory shipment ”  Lifecycle Quality Control: At the raw materials stage, we conduct material analysis, performance testing, and aging resistance experiments on sensing chips, stainless steel housings, and sealing rings to ensure the base materials meet specifications. During production, each sensor undergoes pressure accuracy calibration, signal output testing, and waterproof & dustproof tests to guarantee that its monitoring performance meets standards. Finally, at the finished-product stage, sensors are subjected to high-and-low temperature cycling tests. -40℃ To 85℃ Cycle 50  Second), vibration durability test (continuous vibration 100  Hours), high-pressure sealing test ( 50 MPa Holding pressure 30  Minutes without leakage), etc. 20  The remaining stringent tests ensure reliability even under extreme operating conditions. Meanwhile, LiuGong has established a comprehensive quality traceability system—each sensor comes with a unique identification code, enabling full traceability of the production batch, testing data, and after-sales records, thus providing all-around protection for users' rights and interests.

Liugong 30B1067 Pressure sensors, centered on high-precision monitoring, wide-range adaptability, robust environmental resilience, and intelligent fault diagnosis, have become essential for smart monitoring in construction machinery. “ Precision Perception Hub ” Choosing it means not only selecting a high-quality sensor, but also opting for reliable assurance in safe equipment operation and intelligent maintenance—empowering your construction machinery to maintain stable performance in diverse and challenging environments such as mining, infrastructure projects, and road construction, while boosting both operational efficiency and safety levels.