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Falling Weight Deflectometer FWD

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Falling Weight Deflectometer (FWD) is one of the most advanced non-destructive testing equipment of road surface strength in the world. It has become a hot topic in the field of road in the world to measure dynamic deflection of road surface and calculate the rebound modulus of road surface.
  • TBTFWD-NJ-M

  • TBTSCIETECH

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As it has become a hot topic in the field of road in the world to measure dynamic deflection of road surface and calculate the rebound modulus of road surface, FWD(falling weight deflectometer) become a popular inspection machine for testing the deflection of pavement to ensure the pavement quality; 


Presenting our Falling Weight Deflectometer (FWD) - a definitive answer for non-disastrous testing of asphalt conditions. With its state of the art innovation, the FWD is intended to assess the heap bearing limit of streets and asphalts precisely.


Outfitted with dynamic diversion estimation capacities, the FWD gives fast and exact information securing, taking into consideration speedy and productive asphalt condition appraisals. Whether you're hoping to evaluate the primary respectability of a street or decide the requirement for support or recovery, the FWD is the ideal device to get everything taken care of.


One of the critical highlights of the FWD is its redirection bowl investigation, which takes into consideration an exhaustive assessment of the asphalt's presentation under shifting burden conditions. This inside and out investigation gives important experiences into the general strength of the asphalt, assisting with distinguishing expected issues before they become serious issues.


With the Falling Weight Deflectometer, you can believe that you're getting exact and dependable information to settle on informed conclusions about your asphalt foundation. Express farewell to mystery and hi to exact burden bearing limit assessments with the FWD.



1. Easy to operate, and fully-automatic

2.“One-Key Operation” The whole testing task can be completed by one single person with pressing just one key on laptop.

3. Multi-functional and Professional

4. Strong and durable trailer base plate.

5. Equipped with laptop for wireless data transmission

6. GPS location and temperature measurement

7. Auto capture of deflection value and load value.

8. Continuous outdoor working. 

9. Storage Battery Charging: charging by electric generator on the tractor.

10. Double Locking System: Hydraulic/ Mechanical

11. Emergency System: Lift the load plate when system breaks down.

12. Operation Options: Manual/ Automatic 

13. Working status of load plate can be monitored on the screen.

14. Inertia Braking 

15. Synchronized turn/break/back light and head warning light with the tractor


Hammer weight:

450KG

Moving speed:
0~120km/hour
Testing speed per point:Around 25~30s
Deflection type:Magnet electric speed sensor
Deflection sensor quantity:1~9pcs selectable (can be extended up to 15pcs)
Deflection range: ±2500um
Deflection accuracy:2%
Deflection repeatability:1%
Loading force:12~150KN (optional 250KN of HWD for airport avaiable )
Loading repeatability:2%
Loading resolution 0.1KN , 1Kpa
Loading plate:D300mm / 4-segment plate
Temp. Measuring range:-50℃ ~ 100℃/ platinum resistance & infrared
Temp. Resolution: 0.1℃
Temp. Accuracy0.50%
GPS accuracy+/-5meters


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