• Triaxial Load Frames Tritech

Triaxial Load Frames Tritech

BS 598, BS 1377, ASTM D1559, ASTM D1883, ASTM D2166, ASTM D2850...

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WYKEHAM FARRANCE’s electro-mechanical TRITECH machines are the original high-performance load frames for triaxial tests

Introduced by the company over 50 years ago, they have undergone continuous development and are the ideal solution for advanced and research laboratories that want to perform high quality tests at high levels of productivity. Based on heavy duty triaxial load frames, with advanced electronics and high quality components, these frames are the top of the range currently available for triaxial testing on soils. The load frames are built around a robust twin chromed-column structure, ensuring extremely high rigidity. The loading platen is made from stainless steel. Four models are available depending on the max capacity and if equipped or not with a built-in data acquisition.


28-WF4005 / 28-WF4010 - cap. 50 et 100 kN
The models 28-WF4005 - 50 kN capacity and 28-WF4010 - 100 kN capacity can be used either as parts of a computer-controlled automatic testing system or as high-performance units under manual control with an external data acquisition. In manual mode the user-friendly keyboard on the front panel allows to manage all the frame’s functions, including rapid approach facility that reduces test set-up time. For efficient use the last settings are stored and automatically recalled after switch on and micro switches prevent over-travel problems. In the Automatic PC-controlled triaxial systems the frame is driven through the RS 232 serial port, in order to operate under load or displacement closed loop control. These two models can also be equipped with a pneumatic actuator to perform both static and dynamic testing.


Common Main FeaturesAdditional Features
28-WF4005, 28-WF4005/4C,  28-WF4010 et 28-WF4010/4C28-WF4005/4C and 28-WF4010/4C (models with 4 built-in channels data acquisition)
  • Designed for soil testing laboratories to perform UU, CU, CD and stress path* (compression/extension) tests
  • Suitable for automatic PC-controlled triaxial testing (see AUTORIAX 2 system)*
  • Allows dynamic tests to be performed when fitted with a suitable actuator (see Dynatriax system)*
  • Maximum compression capacity: 50 kN or 100 kN
  • Speed range from 0.00001 to 99.99999 mm/min
  • Maximum sample diameter (for triaxial testing): 150 mm
  • The quality of the design avoids vibrations that may affect the specimen or measurements accuracy
  • Ideal solution for advanced and research laboratories that require high productivity and high quality testing
  • High-contrast 4 x 20-character display with 6-key membrane keyboard*
  • Very wide variable speed range suitable to perform also unconfined, CBR and Marshall tests

* Only for model without built in data acquisition

  • Data acquisition by 4 in-built channels
  • Double control mode including machine and data acquisition via local touch screen display or from remote PC (not included) and software (included)
  • USB port to connect a memory stick (included with the machine) for test data storage
  • Effective sampling rate up to 50 / sec
  • LAN communication
  • Automatic test start and stop according preset conditions
  • Wide 5.7'' waterproof touch screen color graphic display allowing machine control, live on screen data plot and tabulation
  • Local and remote transducers calibration through the dedicated software
  • Graphical and Numerical display of readings.


Detail of the Tritech legendary gearbox. The system is designed to
minimize the vibration and allow smooth transmission
Detail of the adjustable 5.7” touchscreen color graphic display​



28-WF4005/4C, 28-WF4010/4C 50 and 100 kN cap., 4 channels built-in data acquisition.

The models 28-WF 4005/4C – 50 kN capacity and 28-WF4010/4C – 100 kN capacity are fitted with 4 built-in channels and data acquisition, to be used either in stand- alone mode or connected to a PC. These load frames are equipped with a wide user friendly touch screen display, side mounted and very ergonomic allowing local control of the main functions and data acquisition. In each model the panel and display are protected from water and dust by a waterproof membrane. The touch screen display is extremely versatile to start, pause and stop the test, to set up data recording mode, to show live readings of the transducers in real time and to perform calibrations. In addition a LAN connection and a dedicated software (included with the machine) allows remote control from the PC. In remote control mode the software allows the user to control the main functions via PC as well as to calibrate the channels with linear, polynomial and multi-coefficient calibration mode, and todisplay the readings (figures and plots).


4 built-in channels--YesYes
Maximum sample diameter, mm150150150150
Minimum testing speed, mm/min0.000010.000010.000010.00001
Maximum testing speed, mm/min99.9999999.9999999.9999999.99999
Maximum compression force, kN5010050100
Maximum tensile force, kN5555
Minimum vertical clearance, mm335390335390
Maximum vertical clearance, mm1100114011001140
Horizontal clearance, mm364498364498
Platen diameter, mm158158158158
Platen travel, mm100100100100
Dimensions, mm (hxlxp)1460 x 505 x 3801830 x 600 x 5201460 x 655 x 3801830 x 750 x 520
Power, W600680600680
Weight, kg (approx.)9812098120


Ordering information
28-WF4005TRITECH50, Triaxial load frame 50 kN, 220-110 V / 50-60 Hz / 1 ph
28-WF4010TRITECH100, Triaxial load frame 100 kN, 220-110 V / 50-60 Hz / 1 ph
28-WF4005/4CTRITECH50 – 4 channels, Triaxial load fra-e 50 kN with 4 built-in data acquisition channels, 220-110 V / 50-60 Hz / 1 ph
28-WF4010/4CTRITECH100 – 4 channels, Triaxial load frame 100 kN with 4 built-in data acquisition channels, 220-110 V / 50-60 Hz / 1 ph


A complete range of parts and accessories is available from WYKEHAM FARRANCE to configure these machines for any typical triaxial soil testing application.
Triaxial cells
Measurement instruments
Pressure systems
Water de-airing system
Data acquisition and processing




BS 598 | BS 1377: 4 | BS 1377:7 | BS 1377:8 | ASTM D1559 | ASTM D1883 | ASTM D2166 | ASTM D2850 | ASTM D4767 | ASTM D5581 | ASTM D6927 | ASTM D7181| NF P94 070 | NF P94 074 | NF P94-078 | NF P98-251 | CEN- ISO/TS 17892-9 | CEN- ISO/TS 17892-8 | EN 12697-34 | EN 13286-47