The TST-55 soil permeameter (falling head permeameter) is a laboratory device designed according to ASTM D5084 and BS 1377-5, used to determine the permeability coefficient of cohesive soils under falling head conditions. The instrument features a middle screw compression seal and consists of an upper cover, base, sleeve, cutting ring, porous stones, and screw rod. A prepared soil specimen is placed in the cutting ring and installed in the permeameter. An external water supply provides falling head pressure, and the time for the water head to drop is recorded. The permeability coefficient is calculated based on specimen dimensions and the cross-sectional area of the water head tube. Compact, well-sealed, and easy to operate. Widely used for cohesive soil permeability testing in water conservancy, highway subgrade, railway engineering, and embankment projects. Compliant with ASTM D5084 and BS 1377-5. OEM customization supported.

 

The portable ultrasonic flaw detector is an NDT device based on the pulse-echo principle, designed for detecting internal defects in metal materials such as cracks, porosity, and inclusions. The probe emits high-frequency ultrasound into the test piece; echoes from defects are digitally processed to accurately calculate defect location, depth, and equivalent size. Features include a high-brightness color display, A-Scan waveform, DAC/AVG curves, gate alarm, peak memory, and data storage. Compatible with straight, angle, and dual-crystal probes for applications from thin plates to thick walls. Lightweight with a built-in rechargeable battery for long field operation and high protection rating. Widely used for quality inspection of welds, castings, forgings, pipes, and pressure vessels. Compliant with ASTM E317, BS EN 12668. OEM customization supported.

 

The low strain pile integrity tester (pile dynamic tester) is a portable NDT device based on the low-strain reflected wave method (pulse echo method), used to evaluate the integrity of concrete bored piles, driven piles, and other deep foundations. The operator strikes the pile top with a hand-held hammer to generate a stress wave; the sensor captures reflected wave signals, and the system analyzes the data to quickly determine defect locations (necking, soil inclusion, segregation, voids, etc.) and severity, while also verifying pile length. The instrument features high-precision data acquisition and adaptive amplification technology for clear waveforms and easy toe reflection identification. Equipped with a high-brightness touchscreen, supports wireless data transmission, and has a built-in high-capacity lithium battery for long operation. Simple operation, one-person testing. Compliant with ASTM D5882, BS EN ISO 22477-4 and other international standards. Widely used for pile quality testing in construction, bridges, highways, railways, and port projects. OEM customization supported.

 

The concrete rebar detector (rebar scanner/covermeter) is a portable NDT device based on the electromagnetic induction principle, used to locate rebars in concrete, measure concrete cover thickness, and estimate rebar diameter. The instrument uses multi-coil pulse induction technology. When the probe scans the concrete surface, it generates a pulsed magnetic field that induces eddy currents on the rebar surface, creating a secondary magnetic field. The device calculates rebar depth and position based on changes in the magnetic field. Integrated design combines the main unit and sensor coil for easy one-hand operation. Features a high-brightness color display, supports grid scan and profile scan modes, and offers data storage and PC export. Widely used in structural safety assessment, bridge and tunnel inspection, quality acceptance, and reinforced concrete construction quality control. Compliant with BS 1881:204. OEM customization supported.

 

The spark tester (high voltage holiday detector) is a portable NDT device based on the high voltage spark discharge principle, used to detect pinholes, bubbles, cracks, and other discontinuities in non-conductive coatings on metal substrates. The instrument applies adjustable high voltage to the coating surface via a probe. When the probe passes over a defect, the high voltage arcs through the air gap, generating a visible spark and audible/visual alarm to quickly locate the defect. Lightweight, long battery life, with interchangeable brush probes (flat, annular,扇形, etc.) for pipes, tanks, ships, and chemical equipment. Widely used for pipeline coating acceptance, tank lining assessment, ship ballast tank coating inspection, and electrical equipment insulation fault detection. Compliant with ASTM D5162, ASTM G62, NACE SP0188 and other international standards. OEM customization supported.

 

The automatic cement specific surface area tester is a next-generation fully automatic testing device based on the Blaine air permeability method, used to determine the specific surface area (Blaine value) of cement, slag powder, fly ash, and other powdered materials. The instrument measures the resistance of a fixed volume of air passing through a compacted powder bed of specified porosity and thickness, automatically calculating the specific surface area. It features a color touchscreen, intelligent photoelectric detection, and USB data export. The entire test process is fully automatic (except manual sample loading), eliminating human error. Users can adjust porosity, density, and other parameters for a wide measurement range. One‑key temperature calibration and one‑key photoelectric sensor calibration adapt to different environments. Large storage capacity for many test and standard samples. Widely used in cement plants, concrete batching plants, material testing labs, and research institutes. Compliant with ASTM C204, BS EN 196-6 and other international standards. OEM customization supported.