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Light Falling Weight Deflectometer, Evd Dynamic Deformation Modulus Tester

Serve Real Instruments Co.,Ltd
Serve Real Instruments Co.,Ltd
City: Shanghai
Province/State: Shanghai
Country/Region: China
Contact Person:Mr Patrick

Light Falling Weight Deflectometer, Evd Dynamic Deformation Modulus Tester

Place of Origin : Jiangsu
Brand Name : SRI
Certification : ISO
Model Number : FWD-L100
MOQ : 1
Price : 5000-6000USD
Packaging Details : Standard exporting package
Delivery Time : 5-10 days
Payment Terms : T/T, Paypal
Supply Ability : 100sets/month
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Standard: ASTM E2835-11, ASTM D4695, TB10414-2003 / TB10102-2004(China), TP BF-StB (Germany)

The falling weight deflectometer is used to measure the vertical deflection of the load plate response of a surface to an impulse load. the deflections is either correlated to pavement surface or used to determine characteristics of the materials used for the pavement foundation. It can quickly & precisely obtain the dynamic deformation modulus (Evd value) of soil and other construction materials.

The falling weight deflectometer provides an easy and cost effective solution to determine the soil bearing capacity and compaction quality, it can quickly obtain the Evd value, it's a common pavement test equipment.

The deflectometer is comprised of a loading mechanism, a loading plate, a electronic settlement measuring device.


Pavement, railway, earthwork project

Kennel soil mass quality inspection

Construction bedding quality inspection

Pile hole, trial boring quality inspection

Construction foundation frame deformation modulus inspection


More actual of the roadbed soil condition compare with the Ev2 test

Imported sensors and parts guarantee high measuring accuracy

LCD display with backlight for high visibility

Easy operation, rapid test, one point only need 35s

Automatic calculate Evd value and display curve

Portable machine equipped with Bluetooth micro printer

USB data interface easy for connection with computer

Safe & environment friendly

Technical Specifications


Soil type

The soil and soil aggregate mixture with size not larger than 1/4 of the plate dia.

Pressure range


Effective depth

Normal condition 500mm

Measure device

Loading device

Drop hammer weight


Max impact loading


Impulse loading shape

Half sinusoid

Impact duration time



Zinc-plated steel/ alloy steel

Bearing plate






Zinc-plate alloy steel

Electric sedimentation meter

Sink testing range


Storage amount

2000 groups testing curve

Power supply

Lithium battery, 18hrs continuous work time

Working ambient

Working ambient

-10 ~ +40



Main machine case


Engineering plastic

Net weight


Overall dimension

385 300

External packing case


Aluminum alloy


approx. 15kg (including 6kg drop hammer)

Overall dimension


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