Triaxial Load Frame TRIAX


WYKEHAM FARRANCE’s electro-mechanical TRIAX - triaxial machine - has been designed specifically for triaxial applications and is ideal for commercial laboratories that need a versatile machine capable of performing a wide range of tests.
The load frame is built around a robust twin column structure, ensuring extremely high rigidity up to 50 kN.
When the frame is used in PC control mode, all the main functions (speed fast/slow, direction up/down, stop).  All functions can also be remotely managed by PC via a set of commands in ASCII format using RS 232 port. 
In manual mode, the user-friendly keyboard on the front panel is used to control all the frame’s functions, including a rapid approach facility that reduces test set-up time. For efficient use the last settings are automatically recalled after switch on. The frame is equipped with micro switches that prevent over-travel problems.  The panel and display are protected from water and dust by a waterproof membrane. 
It requires extenal data acquisition system see our GEODATALOG's 
The frame has been designed for soil testing labs conducting UU (unconsolidated undrained), CU (consolidated undrained) and CD (consolidated drained) triaxial tests but it can also be used, due to its large range of speeds, to perform unconfined and others.
A complete range of parts  and accessories is available to configure this machine for any typical triaxial soil testing application.


  • Ideal solution for commercial laboratories a machine to perform high quality triaxial tests in addition to unconfined and general purpose compression tests.
  • Designed for soil testing laboratories to perform UU, CU and CD triaxial tests on samples from 38 to 70 mm dia.
  • Maximum load frame capacity: 50 kN
  • Maximum testing load depending on the selected test speed (variable from 35 to 7 kN)   The choice of the opportune load cell capacity shall take into account this value           
  • Speed range from 0.00001 to 50.8 mm/min
  • Large High-contrast 4 x 20-character display and 6-keys membrane keyboard
  • Maximum sample diameter (for triaxial testing): 70 mm



  BS 1377:7‰ASTM D2850‰ASTM D4767‰BS 1377:8‰UNE 103-104‰NF P94 070‰NF P94 074

Technische specificaties

Technical Specifications

Model 28-WF4001
Maximum sample diameter, mm70
Minimum testing speed, mm/min0.00001
Maximum testing speed, mm/min50.8
Maximum load testing, kNfrom 35 to 7 *
Minimum vertical clearance, mm390
Maximum vertical clearance, mm725
Horizontal clearance, mm380
Platen diameter, mm158
Platen travel, mm 100
Dimensions, mm ( h x w x d) (approx.)1215 x 500x 495
Power, W600
Weight, kg (approx.)90

 (*) depending on selected test speed

Order nummers


TRIAX Triaxial load frame, 230-110V/50-60Hz/1ph 


Accessoires & toebehoren