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LT50 Digital Display Electric Stress-Type Direct Shear Tester

It is primarily applicable to direct shear tests on rock blocks, structural surfaces (such as joint planes, bedding planes, foliation planes, and cleavage planes), and the interface between concrete (or mortar) and rock (the bonding surface), as well as to tests of the shear‑failure strength of interfaces between concrete and other materials.

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Rock and rock mass testing instrument

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lbt@lbt.ltd

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+86-15102211717

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LT50 Digital Display Electric Stress-Type Direct Shear Tester

Description

Product Introduction

The rock electric‑stress direct shear apparatus has been developed in accordance with the national industry standards: SL 264‑2001 “Test Procedures for Rock in Hydraulic and Hydroelectric Engineering,” JTG E41‑2005 “Test Procedures for Rock in Highway Engineering,” and GB/T 50266‑2013 “Standard Methods for Testing Engineering Rock Masses.” This instrument employs the push‑shear method and is primarily suited for direct shear tests on rock blocks, structural surfaces (such as joint planes, bedding planes, foliation planes, and cleavage planes), and the contact interfaces between concrete (or mortar) and rock (i.e., cemented surfaces), as well as for determining the shear‑failure strength of interfaces between concrete and other materials. Its structural performance fully complies with the requirements of the relevant test specifications.

Technical specifications:

Parameter item	Specific explanation
Normal load F	0~500 kN
Normal working stroke S	0~150mm
Lateral load F	0~500 kN
Horizontal working stroke S	0~150mm
Normal space	≤450 mm (maximum specimen height that can be accommodated: 200 mm)
Horizontal space	≤400 mm (maximum specimen width that can be accommodated: 200 mm)
Shear cylinder and ram adjustment	Adjustable in height (adjustable according to the specimen’s height, easy to operate and enables rapid testing)
Type of force sensor	Both the normal and tangential components are measured by high-precision spoke-type sensors (which directly measure force, offering greater directness and accuracy than pressure sensors).
Displacement sensor configuration	Both normal and tangential displacements are measured by displacement sensors; the digital display directly shows two displacements, two strains, two forces, and two loading rates.
Digital display function	Highly integrated, equipped with a miniature printer.
Shear loading rate V	0~30 kN/s (manual stepless speed control)
Payload indication method	LCD digital display
Payload indication accuracy	0.1KN
Displacement measurement method	Direct reading with an optical encoder (0.01 mm)
Loading method	Electro-hydraulic; the hydraulic pump is an imported ultra-low-noise model.
Controlled loading method	Manual stepless speed regulation, with a special device featuring voltage stabilization.
Motor power	0.75KW
Operating voltage	380V/220V
Overall machine weight	1300Kg
Ball bearing arrangement	Downward style
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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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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LT50 Digital Display Electric Stress-Type Direct Shear Tester

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