Zhuozhou Tianpeng Imp. and Exp. Trade Co., Ltd. is one of the leading manufacturers and suppliers of falling weight deflectometer fwd in China. With abundant experience, we warmly welcome you to buy customized falling weight deflectometer fwd made in China here from our factory. Quality products and reasonable price are available.
Description of Product
The falling weight deflectometer (FWD) is a trailer-mounted, non-destructive testing system designed to evaluate pavement conditions and physical properties with high precision. It simulates the load of a passing vehicle and measures the vertical deflection response of the pavement, providing reliable data for pavement assessment. The system is convenient, fast, safe, and labor-saving, making it well suited for long-distance and continuous measurement applications. The FWD consists of several key components including the main frame, operating mechanism, falling weight assembly, hydraulic system, sensor system, electrical system, and monitoring and safety guidance system. It is equipped with data acquisition and processing software that records original data such as deflection, load, temperature, and pavement information like pile numbers. The software supports data normalization, error calculations, and the generation of charts and reports for further analysis. This system accurately assesses the structural condition of highways, local roads, parking lots, and airport runways, and can also be applied to roadbeds and subbases during construction. It is widely used in road research, design, rehabilitation, and pavement management.
Standards
ASTM D4694-96
Specification
Falling weight deflectometer FWD-2000K
|
Load range |
0-90kN (130kN optional) |
|
Load cell error |
≤±1% |
|
Load error |
≤±2% |
|
Load repeatability |
≤±1% |
|
Load pulse shape |
Half-sine wave |
|
Load plate |
300mm |
|
Displacement measurement range |
0-3.5mm |
|
Deflection sensor |
Geophone, 1-9pcs (standard configuration is 9 pcs)Deflection sensor error: ≤±1% |
|
Deflection error |
Center ≤±2%; Non-center ≤±3% |
|
Deflection resolution |
0.1μm |
|
Deflection repeatability |
Center ≤±1%; Non-center ≤±1.5% |
|
Temperature sensor |
2 pcs. Ambient temperature and pavement temperature can be measured separately. |
|
Temperature error |
≤±2℃ |
|
Distance error |
≤±0.5m |
|
Single point test speed |
<20 s/point (three times) |
|
Hammer lifting method |
Hydraulic |
|
Load plate lifting method |
Hydraulic |
|
Data transmission |
Wi-Fi /Wired network transmission |
|
Power supply |
12V |
|
Trailer body |
German original chassis |
|
Dimensions |
3500*1800*1400mm, which is convenient for turning and safe for driving |
|
Other information |
Unique test data positioning function: Each measuring point contains the longitude and latitude geographic location information from GPS/Beidou, providing a scientific basis for repeated observation, comparison and analysis of the same point in the future. |
Heavy weight deflectometer FWD-5000K (Special for airports)
|
Load range |
0-240kN (350kN optional) |
|
Load cell error |
≤±1% |
|
Load error |
≤±2% |
|
Load repeatability |
≤±1% |
|
Load pulse shape |
Half-sine wave |
|
Load plate |
450mm |
|
Displacement measurement range |
0-3.5mm |
|
Deflection sensor |
Geophone, 1-9pcs (standard configuration is 9 pcs) Deflection sensor error: ≤±1% |
|
Deflection error |
Center ≤±2%; Non-center ≤±3% |
|
Deflection resolution |
0.1μm |
|
Deflection repeatability |
Center ≤±1%; Non-center ≤±1.5% |
|
Temperature sensor |
2 pcs. Ambient temperature and pavement temperature can be measured separately. |
|
Temperature error |
≤±2℃ |
|
Distance error |
≤±0.5m |
|
Single point test speed |
<40 s/point (three times) |
|
Hammer lifting method |
Hydraulic |
|
Load plate lifting method |
Hydraulic |
|
Data transmission |
USB transmission |
|
Power supply |
24V |
|
Trailer body |
German original chassis |
|
Dimensions |
4400*1850*1780mm |
|
Other information |
Unique test data positioning function: Each measuring point contains the longitude and latitude geographic location information from GPS/Beidou, providing a scientific basis for repeated observation, comparison and analysis of the same point in the future. |
Features
● One-touch automatic operation: A single button inside the cab starts the entire test process automatically. Once the test is complete, the equipment locks itself into place for safe transport.
● Fast single-point testing: Each test point takes less than 20 seconds, including three hammer drops and full data collection in compliance with standard specifications.
● High-precision measurement: The system integrates high-performance sensors, a high-speed data acquisition unit, and customized digital signal processing algorithms to deliver accurate and reliable deflection data.
● Safety interlock protection: An interlock device between the deflectometer and the test vehicle prevents operation while the vehicle is in motion, protecting both the equipment and the vehicle.
● Stable and accurate data collection: Dual synchronized lifting platforms improve stability during testing, enhancing overall measurement accuracy.
● Backup functions for reliability: Every major function is supported by an alternative solution, ensuring consistent performance and high system reliability.
Video
Documents
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