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LTB-7 Microcomputer-Controlled Electrohydraulic Servo Concrete and Rock Direct Shear Testing Machine

It can be used for direct shear tests on rock structural planes (such as joint surfaces, bedding planes, schistosity planes, and cleavage planes), on the rock itself, and on the bonding interfaces between concrete or mortar and rock, as well as for determining the shear‑failure strength of interfaces between concrete and other materials.

Category:

Rock and rock mass testing instrument

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E-mail:

lbt@lbt.ltd

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+86-15102211717

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LTB-7 Microcomputer-Controlled Electrohydraulic Servo Concrete and Rock Direct Shear Testing Machine

Description

Product Introduction

Developed in accordance with the national industry standards SL 264–2001, the Specifications for Rock Testing in Hydraulic and Hydroelectric Engineering, and JTGE 41–2005, the Specifications for Rock Testing in Highway Engineering, this equipment is suitable for performing direct shear tests on rock structural surfaces (such as joint planes, bedding planes, schistosity planes, and cleavage planes), 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.

Product Features:

1. The high-pressure oil source pump station provides the loading force, and a dedicated electro-hydraulic proportional valve together with an accumulator ensures stable pressure; therefore, this system is energy-efficient and does not require a cooling system.

2. This equipment is microcomputer‑controlled; both the vertical load and the horizontal thrust are measured by load cells, while the vertical settlement and the horizontal shear displacement are determined using encoders. It is also equipped with an automated data acquisition system, enabling the computer to control, store, measure, display, process, and print all test parameters and corresponding graphs.

The instrument consists of three main components: the loading host, the hydraulic pump station system, and the microcomputer control system.

● Loading frame. The loading frame consists of a base, support columns, cross beams, a vertical loading hydraulic cylinder, a horizontal loading hydraulic cylinder, a shear box, ball‑bearing rows, guide rails, and other components.

● The hydraulic pump station system consists of an oil supply pump, an electric motor, an overload relief valve, a servo valve, a constant-pressure valve, a directional control valve, and other components.

●The microcomputer control system consists of a microcomputer, a controller, a pressure sensor, a displacement sensor, and other components.

Technical Specifications:

Parameter Category	Parameter content
Pressure sensor	High-precision spoke-type
Pressure stabilization accuracy	±0.5%
Shear load	300kN
Vertical load	300kN
Power supply	AC 380V 50Hz
Displacement accuracy	0.01mm
Use hydraulic fluid	National Standard N46# Anti-Wear Hydraulic Oil (to be provided by the user)
Maximum horizontal travel	150mm
Maximum vertical travel	150mm
Host external dimensions	1060×690×1660 (mm)
Overall machine weight	1000kg
Control system dimensions	1280×600×1000 (mm)
Direct shear box dimensions	50×50 mm, 100×100 mm (square, one set of each)

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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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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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LTB-7 Microcomputer-Controlled Electrohydraulic Servo Concrete and Rock Direct Shear Testing Machine

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