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. It becomes a popular inspection machine for testing the deflection of pavement to ensure the pavement quality.

Specifications:

• Hammer weight: 450KG

• Moving speed: 0~120km/hour

• Testing speed per point: 25~30s

• Deflection type: Magnet electric speed sensor

• Deflection sensor quantity: 1~9pcs selectable (standard configure is 9pcs)

• Deflection range: ±2500um

• Deflection accuracy: 2%

• Deflection repeatability: 1%

• Loading force: 12~150KN (can extend to 250KN)

• Loading pulse shape essentially half-sine

• Loading repeatability: 2%

• Loading resolution 0.1KN , 1Kpa

• Temp. Measuring range: -50℃ ~ 100℃

• Temp. Resolution: 0.1℃

• Temp. Accuracy 0.50%

• DMI sensor type: pulse coder

• DMI sensor quantity: 1pc

• GPS locating: horizontal within ±2meter

Main technical features

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. In order to check our machine’s performance & repeatability, we have used Dynatest FWD model 8000 to do test together with our FWD at same point of location and collected the data from the both machines and found quite good and repeatability is also found very satisfactory.

4. We have used Imported parts in the machine to ensure better quality and for better accuracy.

5. Strong and durable trailer base plate. We have used four-part plates to make better contact with the surface.

6. Equipped with laptop for wireless data transmission

7. GPS location and temperature measurement

8. Auto capture of deflection value and load value.

9. Continuous outdoor working.

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

11. Double Locking System: Hydraulic/ Mechanical

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

13. Operation Options: Manual/ Automatic

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

15. Inertia Braking

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

• Hammer weight: 450KG

• Moving speed: 0~120km/hour

• Testing speed per point: 25~30s

• Deflection type: Magnet electric speed sensor

• Deflection sensor quantity: 1~9pcs selectable (standard configure is 9pcs)

• Deflection range: ±2500um

• Deflection accuracy: 2%

• Deflection repeatability: 1%

• Loading force: 12~150KN (can extend to 250KN)

• Loading pulse shape essentially half-sine

• Loading repeatability: 2%

• Loading resolution 0.1KN , 1Kpa

• Temp. Measuring range: -50℃ ~ 100℃

• Temp. Resolution: 0.1℃

• Temp. Accuracy 0.50%

• DMI sensor type: pulse coder

• DMI sensor quantity: 1pc

• GPS locating: horizontal within ±2meter

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