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HC-U91 Concrete Ultrasonic Tester

This device employs ultrasonic and micro‑imaging technologies, making it suitable for detecting internal defects, crack depths, and crack widths in non‑metallic materials such as concrete, graphite, and nylon, as well as in their structural components. In addition, it utilizes the ultrasonic‑rebound combined method to assess concrete strength and evaluates the grouting compactness of the bottom joints in precast shear walls used in prefabricated construction.

Category:

Non-Destructive Testing Equipment for Construction

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lbt@lbt.ltd

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+86-15102211717

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Description

Product Description:

This device employs ultrasonic and micro‑imaging technologies, making it suitable for detecting internal defects, crack depths, and crack widths in non‑metallic materials such as concrete, graphite, and nylon, as well as in their structural components. In addition, it utilizes the ultrasonic‑rebound composite method to assess concrete strength and evaluates the grouting compactness of the bottom joints in precast shear walls used in prefabricated construction.

Product Features:

1. Employing the ultrasonic–rebound composite method, it integrates four major functions: concrete strength testing, defect detection, crack depth measurement, and crack width measurement.

2. Automatically analyzes the travel time and amplitude of the first echo, eliminating the need for manual interpretation and directly displaying the test results.

3. Equipped with a 10-inch high-brightness touchscreen and an intelligent, interactive user interface, it is easy to learn and operate.

4. A 4-centimeter-thin body and lightweight design make it easy to carry on the go;

5. By manually adjusting the acoustic travel-time curve, data calibration can be performed, yielding more accurate test results.

6. During testing, the waveforms of saved measurement points can be freely replayed, overwritten, or deleted.

7. The low-power design enables continuous operation for more than 8 hours;

8. Data can be transferred to a USB flash drive, and software upgrades are supported;

9. Powerful dedicated PC analysis software that simplifies data analysis, processing, and report generation.

Reference standard:

GB 50292-2015 “Standard for Reliability Assessment of Civil Buildings”

GB 50204-2015 Code for Acceptance of Construction Quality of Concrete Structures

GB/T 50784-2013 “Technical Standard for On-site Testing of Concrete Structures”

JGJ 125-2016 “Standard for the Assessment of Dangerous Buildings”

DB11/T 637-2024 “Comprehensive Standard for Safety Assessment of Building Structures”

SL/T 352-2020 “Test Procedures for Hydraulic Concrete”

JTS 239-2015 “Technical Specification for In-situ Testing of Concrete Structures in Water Transport Engineering”

T/CECS 21-2024 Code for Ultrasonic Testing of Concrete Defects

T/CECS 02-2020 Technical Specification for Determining the Compressive Strength of Concrete by the Ultrasonic-Rebound Combined Method

Technical Specifications:

Project	Parameter
Operating system	Android
Control unit	Dedicated processor
Number of channels	Dual-channel
Display	10.1-inch color LCD display (1280×800)
Trigger Method	Auto-trigger
Sampling interval	0.025 microseconds to 2,000 microseconds (multiple settings available)
Sampling length	512 points to 2048 points (multiple settings available)
Receiver sensitivity	≤10μV
Acoustic wave propagation time measurement range	0 ~ 4,096,000 microseconds
Acoustic wave propagation time measurement accuracy	0.025 microseconds
Amplitude measurement range	0 ~ 170 decibels
Transmission voltage	125V, 250V, 500V, 1000V (multiple specifications available)
Pulse width of the transmitted signal	0.1 microseconds to 100 microseconds
Storage capacity	16G
Data transmission	Dedicated USB flash drive
Charging power supply	AC 100–240 V, 50/60 Hz, output 12.6 V DC, 3.0 A
Host dimensions	283 × 216 × 41 (mm)
Host weight	1.9kg
Operating temperature	-20 ~ 60℃
Crack depth measurement range	5 ~ 500 mm
Crack width measurement range	0.01–10 mm, with an accuracy of 0.01 mm

Related Product

HC-40 Concrete Multi-functional Strength Tester

The HC-40 concrete multi-functional strength tester is a high-performance testing device integrating multiple advanced technologies, specifically designed for evaluating the strength and quality of concrete.

FAQs

Do you supply full-set testing instruments for asphalt and geotechnical engineering projects?

We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects

Can you customize fixtures or test machines based on our special test requirements? How about after-sales service and warranty?

We provide non-standard customization of test equipment and customized fixture clamps according to customers’ specimen size and test standards. All our testing machines enjoy 12-month factory warranty; overseas customers get remote online debugging guidance, spare parts supply and technical operation training. Our products have been exported to over 70 countries globally

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Does your pipe pressure burst testing machine control test temperature automatically? What’s its main application?

Yes, the constant-temperature circulating system keeps stable test environment during long-time hydrostatic resistance and instant burst pressure measurement of thermoplastic pipes. It complies with GB6111 standard and serves raw material inspection, new product R&D for plastic pipe manufacturers, third-party testing labs and university laboratories.

What kinds of pipes fit your ring stiffness tester? Can it do long-term creep testing?

This equipment is designed for HDPE, PVC corrugated pipes, plastic drainage pipes and various plastic tubular products. Apart from ring stiffness, ring flexibility and flattening tests, it supports continuous long-term creep tests up to 1000 hours (42 days) as required by industry specifications, widely used for pipe factories and construction quality inspection institutes.

What test items can your WDW series computer-controlled electronic universal testing machine complete? Which international standards can it meet?

Our WDW universal tester is applicable for tension, compression, bending, shearing and peeling tests of metal, plastic, rubber and composite materials. It supports test procedures in accordance with GB, ISO, ASTM, DIN, JIS multiple domestic and global standards. Equipped with high-precision servo drive and dedicated test software, it automatically collects, calculates and exports test data including tensile strength, elongation at break and elastic modulus.

Customer Reviews

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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HC-U91 Concrete Ultrasonic Tester

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