Rock Triaxial Testing System
RTX-1000 Triaxial Rock Testing System

The GCTS RTX-1000 Triaxial Testing Systems are manufactured according to the user’s design specifications. Our expert designing and engineering is sure to meet the user’s every need in rock triaxial testing. Our systems also come with intuitive software to make the testing process that much easier and accurate.


  • Direct closed-loop digital servo control of axial stress, average principle stress, axial strain, radial strain, and several other calculated triaxial variables.
  • Load capacities up to 4,500 kN (1,000 kips) & stiffness up to 4,300 kN/mm (25x106 lbs/inch).
  • GCTS High Pressure Triaxial cell with internal instrumentation to measure local axial & radial strains.
  • Servo-controlled pressure intensifier system for up to 210 MPa (30,000 psi) pressure range.
  • Available options: axial & circumferential deformation measurement system, platens with ultrasonic transducers, and high temperature control subsystem.
  • Ideal for performing unconfined compression, triaxial, bending, indirect tension, fracture, creep, post failure behavior, & other compression tests.
  • Economical "turn-key" systems built to customer specifications.
  • Optional automatic hydraulic lift for triaxial cell and roller assembly for fast & easy specimen setup.



GCTS Triaxial Rock Testing Systems are manufactured according to your design specifications (load capacity and system stiffness, sample size, confining and pore pressures, internal instrumentation, temperature testing, and ultrasonic velocity measurements). The top cross head height can be adjusted to accommodate a wide variety of test specimens and triaxial cells. The RTR-1000 meets the specifications of the International Society for Rock Mechanics (ISRM) for triaxial testing of rock samples.

The system is capable of performing static and dynamic closed-loop strain or stress controlled as well as post failure behavior tests. Included with this system is our true 32-bit Windows compatible software. It allows sending directly your test data to any computer connected to your local network. Our new software includes a database system to keep track of all the data generated at your lab with any of our testing systems. Using a Windows network system in your lab facilitates the transferring of your test data directly into other Windows programs such as Word or Excel for report generation as well as to easily backup your important test results.


The system software helps the user select the proper testing parameters and provides the necessary information required to automatically execute the desired test.


The Graphical User Interface with context-sensitive on-line help and intuitive color windows helps minimize learning time and enables laboratory personnel to conduct more complex, but realistic, testing programs at substantially lower operating cost and also with minimal operator error. The system manages all the instrumentation and continuously monitors sensor outputs to accurately account for uplift pressures acting on the loading piston, area changes, deformation and volume change sensors setup and re-positioning, etc.



  • 1000 kN axial load capacity
  • 70 MPa confining pressure capacity
  • 750 kN/mm frame stiffness
  • 54 mm maximum specimen diameter


Please contact GCTS for full specifications.