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ZJ-type stress–strain-controlled multifunctional direct shear apparatus (for direct shear, reciprocating shear, residual shear, and rheological testing)

This instrument is used to conduct shear tests on soil samples at various normal stresses, maintaining a constant shear rate, and to measure the shear stress at the time of sample failure.

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Geotechnical and Soil Testing Equipment

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lbt@lbt.ltd

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+86-15102211717

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ZJ-type stress–strain-controlled multifunctional direct shear apparatus (for direct shear, reciprocating shear, residual shear, and rheological testing)

Description

Product Introduction

This instrument is used to conduct shear tests on soil samples under varying normal stresses at a constant shear rate, measuring the shear stress at failure. Based on Coulomb’s law, it determines the soil’s shear strength, internal friction angle, and cohesion. The direct shear apparatus features stepless speed control, with the entire test process managed by a computer. During testing, data are acquired in real time, and curves depicting vertical stress–vertical displacement, shear stress–shear displacement, and vertical–shear displacement relationships are displayed dynamically. Test results can be exported in Excel file format.

Instrument Features

1. The normal force is applied using a rolling diaphragm pneumatic cylinder, with manual or automatic adjustment of the normal pressure. Manual pressure adjustment is achieved via a CKD precision pressure regulator, and the pressure display is also a CKD product; air pressure is increased or decreased to enable loading and unloading. Automatic adjustment of the normal pressure is implemented through an electro‑proportional valve, with software capable of controlling the desired loading and unloading of the normal force. The maximum normal load is 4.8 kN, with a control accuracy of ±1%.

2. Shear force is controlled via a servo system, enabling both strain‑controlled direct shear testing (with a rate range of 0.002–2.4 mm/min) and constant‑shear‑force control (for rheological tests). Shear force is measured using a dedicated sensor with an accuracy of ±1%. The drive motor can be either a stepper motor or a Mitsubishi servo motor, with motion transmitted through a ball screw.

3. The shear box is designed and manufactured in accordance with the requirements specified by the user.

4. Normal deformation, shear deformation, and shear force are all measured using sensors, with a measurement accuracy of ±1%. 5. The data acquisition software supports acquiring test data at specified shear‑deformation intervals or time intervals, includes sensor calibration functionality, provides real-time display of test data in graphical form, and enables motor speed control. Upon completion of the test, the data can be exported in Excel format.

Technical Specifications

Project Name	Specific parameters
Soil sample specifications	Φ61.8×20mm
Normal force	1600 kPa; Control accuracy: ±1%
Shear force	10 kN; Control accuracy: ±1%
Vertical Deformation Measurement	Measurement range: 0–10 mm; Measurement accuracy: ±1%
Horizontal Deformation Measurement	Measurement range: 0–10 mm; Measurement accuracy: ±1%
Environmental Requirements	Temperature: 15–25°C
Types of experiments that can be conducted	Direct shear, rheological, cyclic shear, and residual shear tests
Power supply voltage	220V±10%

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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

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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

★★★★★

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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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ZJ-type stress–strain-controlled multifunctional direct shear apparatus (for direct shear, reciprocating shear, residual shear, and rheological testing)

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