EVD Dynamic Deformation Modulus Tester (Light Weight Deflectometer LWD)
- Portable EVD dynamic modulus tester, lightweight falling weight design, fast on-site Evd value test without static load long waiting.
- Standard 10kg drop hammer, 15kg 300mm diameter bearing plate, max impact force 7.07kN, fully comply with TP BF-StB, TB10102 industry standards.
- Handheld digital host with Chinese & English switchable screen, store up to 2000+ test groups, support Bluetooth on-site printing & USB computer data export.
- Large capacity lithium battery, continuous working over 9 hours, suitable for all-day outdoor road, railway and subgrade construction inspection.
- Stainless steel loading structure, anti-rust & shock resistant, test influence depth up to 500mm, cover subgrade filling layer detection.
- Widely used for highway, railway, municipal road, airport, housing foundation soil compaction quality acceptance testing.
EVD Dynamic Deformation Modulus Tester (Light Weight Deflectometer LWD)
Product Overview
Core Product Advantages
- Fast Dynamic Impact Test, High Efficiency
No long static load holding required, single test finished within 30 seconds, greatly improve field construction acceptance speed, ideal for large-scale road subgrade batch inspection.
- Standard Standardized Loading Structure
10kg free fall hammer, 700±20mm fixed drop height, maximum impact force 7070N, impact duration 18±1ms; 300mm diameter 15kg thickened bearing plate, consistent test conditions to guarantee data repeatability.
- Intelligent Digital Handheld Host
3.5-inch touch screen with Chinese & English bilingual display, automatically calculate Evd modulus, settlement deformation and test curve; built-in large memory to save 2000 groups of test data. Support Bluetooth thermal printer for on-site report output, USB data transmission to PC for analysis & archiving.
- Long Endurance Outdoor Battery
Built-in rechargeable lithium battery, continuous working time over 9 hours, adapt to all-day outdoor construction site operation without frequent power charging.
- Durable Anti-Corrosion Metal Assembly
Loading rod and bearing plate adopt thick stainless steel nickel plating treatment, anti-rust, anti-impact and anti-deformation, suitable for dusty, muddy construction environment. Test effective influence depth reaches 0~500mm, accurately reflect subgrade filling layer bearing performance.
- Wide Industry Compliance & Application
Meet domestic and international road construction test standards, applicable to various particle size soil, gravel mixed filler, subgrade backfill, road base layer compaction detection.
Main Technical Specifications
Loading System
- Total weight of loading device: 15kg
- Drop hammer weight: 10kg
- Drop height: 700±20mm
- Maximum impact force: 7.07kN
- Impact duration: 18±1ms
- Bearing plate: Φ300mm, thickness 20mm, weight 15kg
Handheld Data Host
- Screen: 3.5 inch bilingual touch screen
- Evd test range: 10~225 MPa
- Settlement measuring range: 0.10~2.00mm
- Data storage: 2000 groups test records
- Power supply: Rechargeable lithium battery, working time ≥9h
- Transmission: Bluetooth printing + USB computer export
Working Environment
- Temperature: -10℃ ~ 40℃
- Humidity: ≤90%RH non-condensing
- Test influence depth: 0~500mm
Application Scenarios
- Highway & Municipal Road: Roadbed, road base layer compaction bearing capacity acceptance
- Railway Engineering: Railway subgrade, ballast bed dynamic modulus detection
- Airport & Port: Airport runway, yard foundation filling quality inspection
- Construction & Municipal: Building basement, green belt backfill, pipeline trench backfill test
- Water Conservancy: Dam, river embankment soil compaction monitoring
Packaging & Accessories
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