Custom Automatic computer controlled rock shear strength testing machine Suppliers, Quotes

This instrument is a new type of rock mechanics property testing instrument developed and produced by our company. The instrument performs horizontal shear on rock specimens under different normal loads, and determines the shear strength parameters of rocks based on Coulomb's law expression. 

This instrument is suitable for direct shear testing of rock structural planes (such as joint planes, bedding planes, foliation planes, splitting planes, etc.), the rock itself, and the bonding surfaces between concrete or mortar and rock. Widely used for indoor experiments in engineering geological survey teams, testing teams, universities, and research institutions.

This instrument can only perform shear strength tests on rocks and non-metallic materials with regular square shapes.

Product Description

Performance Characteristics

  • 01
    Electro hydraulic servo oil source with dual control pressurization. Features liquid crystal display for normal force application and computer-controlled collection of shear force.
  • 02
    Advanced data collection software for real-time monitoring and storage of shear force values, displacement, and normal deformation.
  • 03
    Precise control of shear rates and constant shear strain settings, allowing for flexible experimental parameters and comprehensive strain collection.
  • 04
    Seamless data management with the ability to freely export experimental data for professional analysis and viewing.
Software interface for monitoring shear stress and deformation

Technical Parameters

Loading Method Shear: Electro-hydraulic servo computer control
Normal: LCD display, adjustable servo control
Ultimate Force (Shear & Normal) Range: 0-600kN
Accuracy: 0.5% F.S
Overload Protection: 2%
Deformation & Displacement Normal Deformation: 0-50mm (0.01mm accuracy)
Shear Displacement: 0-20mm (0.001mm accuracy)
Cylinder Stroke Normal Cylinder: 0-80mm
Shear Cylinder: 0-80mm
Shear Rate Range Deformation: 0.01-3mm/s
Load Control: 0.01-5Mpa/s
Test Piece Size Cubes: 200mm³, 100mm³, 150mm³
Cylinders: Φ25, Φ50, Φ100 × 100mm
Voltage Requirements Oil Source: 380V / 50Hz
Control System: 220V / 50Hz
Rock shear strength testing equipment

Instrument Composition and Principle

The electro-hydraulic servo rock shear strength tester is a sophisticated system designed for precision testing. Its core components include:

  • Dual channel electro-hydraulic servo oil source
  • High-stability testing host
  • Professional controller and shear box
  • Industrial computer with specialized data acquisition and control system

Frequently Asked Questions

What is the maximum load capacity of this tester?
The instrument provides an ultimate shear force and normal ultimate load range of 0-600kN with an accuracy of 0.5% F.S.
What sizes of test pieces can be accommodated?
The system supports 200mm³, 100mm³, and 150mm³ cubes, as well as cylinders with diameters of Φ25, Φ50, and Φ100 × 100mm.
How is the testing data managed and monitored?
Data is monitored in real-time through specialized software, displaying stress-deformation curves. All experimental data can be freely exported for further analysis.
What are the control modes for shear loading?
It features deformation control (0.01-3mm/s) and load control (0.01-5Mpa/s) via an electro-hydraulic servo system.
Does the system include overload protection?
Yes, the system is equipped with lateral and normal overload protection set at 2% over full load to ensure equipment safety.
What power supply is required for operation?
The servo oil source requires a 380V / 50Hz supply, while the data acquisition control system operates on 220V / 50Hz.

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