Compatible substrates
Steel / metal wall
DONGRU DR86A Ultrasonic Thickness Gauge
Ultrasonic Thickness Gauges
DR86A
DONGRU DR86A Ultrasonic Thickness Gauge
For ultrasonic wall-thickness checks on suitable metal components and structures.
Request technical guidanceCapabilities / DR86A
What the product record supports.
Four confirmed points: material, measurement, readout and power. Full values are in the specification table below.
Measurement
ultrasonic · 0.55-500mm(steel) · ±(0.5%H+0.05)mm
Readout
0.01mm · 2.8-inch color display
Power & body
3.7 V lithium battery (3000 mAh) · 141×69×27mm / 162g（excluding probe）
In practice
Where the DR86A is used
Track remaining wall thickness on pipes, boilers, pressure vessels and steel plate with pulse-echo ultrasound — 0.55 to 500 mm on steel at 0.01 mm resolution.
01
Pipes, boilers, vessels
0.55–500 mm (steel)
Survey corroded walls on process piping, boiler shells and pressure equipment, and log the remaining thickness point by point.
The surface must be accessible: clear the coating and apply couplant at each measurement point.
02
Corrosion surveys over time
±(0.5%H+0.05) mm
Compare readings between inspections to estimate corrosion loss, with max / avg / min grouping across a series of points.
Calibrate sound velocity to the actual material before comparing surveys.
03
Rechargeable field kit
3.7 V 3000 mAh
500
mm · max steel range
The built-in 3000 mAh cell charges directly, and the 2.8-inch colour screen reads out velocity, thickness and battery on site.
Standard probe is rated −10 to +50 °C; a high-temperature probe covers media below 300 °C.
Pulse-echo · 0.55–500 mm (steel) · 0.01 mm resolutionDR86A · Ultrasonic wall thickness gauge
Where it stopsPulse-echo needs couplant on bare metal, so painted points must be cleared locally before reading. For measuring through the coating, see the DR87A.
Model / DR86A
Technical specifications
Values come from one shared product record; confirm suitability for your measurement task.
0.55-500mm(steel)
Measuring range
Confirm your material, measuring method and application before selecting an instrument.
Measurement
- Measurement method
- ultrasonic
- Measuring range
- 0.55-500mm(steel)
- Compatible substrates
- Steel / metal wall
- Accuracy
- ±(0.5%H+0.05)mm
- Resolution
- 0.01mm
Instrument & environment
- Model
- DR86A
- Product code
- DR-UT-DR86A
- Display
- 2.8-inch color display
- Power supply
- 3.7 V lithium battery (3000 mAh)
- Dimensions / weight
- 141×69×27mm / 162g（excluding probe）
- Operating environment
- standard probe:-10～﹢50℃（high-temperature probe<300℃）, 20%-90%RH
DR86A
Discuss this model
Tell us your material, expected range and site conditions. We can help check the instrument and probe fit.