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LBT50B Microcomputer-Controlled Concrete Direct Shear Tester

Name: LBT50B Microcomputer-Controlled Concrete Direct Shear Tester
Brand: Laibote (Tianjin) Testing Machinery
Availability: InStock

The rock electric‑stress direct shear apparatus has been developed in accordance with the national standards “Test Procedures for Rock in Highway Engineering” (JTG F41‑2005), “Test Procedures for Rock in Water Conservancy and Hydropower Engineering” (SL264‑2001), and “Standard for Test Methods of Engineering Rock Masses” (GB/T 50266‑2013). It is primarily intended for direct shear tests on rock structural planes—such as joint surfaces, bedding planes, cleavage planes, and fracture surfaces—as well as on the rock itself and on the bonding interfaces between concrete or mortar and rock. It can also be used to determine the shear‑failure strength of interfaces between concrete and other materials.

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Concrete Testing Equipment

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E-mail:

lbt@lbt.ltd

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+86-15102211717

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LBT50B Microcomputer-Controlled Concrete Direct Shear Tester

Description

Product Introduction

The rock electric‑stress direct shear apparatus has been developed in accordance with the national standards “Test Procedures for Rock in Highway Engineering” (JTG F41‑2005), “Test Procedures for Rock in Water Conservancy and Hydropower Engineering” (SL264‑2001), and “Standard for Test Methods of Engineering Rock Masses” (GB/T 50266‑2013). It is primarily intended for direct shear tests on rock structural planes—such as joint surfaces, bedding planes, schistosity planes, and cleavage planes—as well as on the rock itself and on the bonding interfaces between concrete or mortar and rock. It is also suitable for testing the shear‑failure strength of interfaces between concrete and other materials. Its structural performance fully complies with the requirements of the relevant test specifications.

Key features:

1. Computer‑automated control: parameters such as speed, force, and displacement are all monitored and displayed on the computer, with automatic analysis and calculations performed in the database.

2. The test process records the test curve in real time, displays and saves it, with high-speed sampling.

3. Data and report processing capabilities: The system provides users with a dedicated report‑editing tool tailored for graphical typesetting, featuring flexible operation and easy learning, enabling convenient printing of test curves and test results.

4. The system can generate the following reports: shear stress–shear displacement curve, shear stress–normal displacement curve, and shear stress–normal stress curve (including C‑Φ values). It can also simultaneously display stress–strain curves, force–time curves, force–displacement curves, and other plots, with the ability to extract characteristic points from these curves at will.

5. Displays in real time the current normal and tangential force values, peak values, test‑process information, and the current displacement, among other parameters.

6. The software features an automatic zeroing system for displacement and force values, eliminating factors such as inconsistent human reading errors.

7. Equipped with overload protection: when the force or displacement exceeds the testing machine’s rated theoretical values, the system automatically unloads and stops the test.

8. The area, height, ambient temperature, and other parameters for each test group may be adjusted or specified according to the actual conditions.

9. Dual‑system control, comprising both a manual control system and a computer‑based automatic control system. Easy to switch between, ensuring uninterrupted operation even in the event of objective issues such as computer viruses or failure to boot normally.

10. Displacement measurement is performed using four displacement transducers arranged in a diagonal configuration, with data transmitted to the computer in real time.

11. The test procedure can be edited on-site by the operator according to actual conditions, making programming simple and convenient.

12. The holding pressure points can be set to any number, with the speed and holding time for each stage freely adjustable; once the preset conditions are met, the system automatically transitions to the next stage.

Technical specifications:

Parameter item	Specific explanation
Normal rated pressure	F≤500KN
Tangential rated pressure	F≤500KN
Normal space	≤450mm
Horizontal space	≤200mm
Shear loading rate	0.1~35 kN/s (adjustable)
Payload indication accuracy	0.01KN
Displacement measurement	Microcomputer acquisition (0.001 mm)
Loading method	Electro-hydraulic
Controlled loading method	Dual control system featuring microcomputer control and manual stepless speed regulation
Operating voltage	380V/220V
Configuration	Includes a Lenovo-brand computer, an LCD monitor, and an HP-brand printer.
Overall machine weight	1000Kg
External dimensions	1100×850×1980mm

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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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It measures heat deflection temperature and Vicat softening temperature of plastics, hard rubber, nylon, insulating materials and fiber-reinforced thermosetting composites. Intelligent temperature control guarantees precise heating rate, ideal for plastic raw material incoming inspection and formula development in plastic factories.

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

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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.”

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

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“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.”

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.”

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