128kN Load Frame

Product Code : GDSLF128

The new GDS 128kN load frame for triaxial testing can be used via standalone keypad operation or via USB interface for computer control. This load frame has enhanced position/velocity accuracy, direct load control and improved stiffness while still fulfilling the role of a traditional velocity controlled 128kN load frame.

 The new GDSLF128 utilises our familiar Smart Keypad display that shows current speed, displacement, load and DigiRFM values; and can used for stand-alone programming.

Discover more static triaxial testing equipment for soil testing.

Key features Benefits to the user
Displacement Control: Traditional load frames only operate in speed/velocity control mode. All GDS load frames can also operate in displacement control mode via their keypad or software. This function is very useful in setting up or breaking down a test, and also provides higher fidelity control than a velocity only frame can achieve.
Load Control:  
This load frame has one built in acquisition channel for the system loadcell. This allows for local closed loop control as standard, meaning load control can be performed much more aggressively and yet also with finer control than would be possible with a traditional velocity only load frame.
Safety Loop: When under computer control the USB connection status is continually monitored by the load frame. If a break in communication is detected the load frame will stop automatically to ensure no damage to sample or transducers can occur. This has saved many test specimens as well as test equipment when brief powercuts occur or laptop batteries have run out of charge during a test.
Closed Loop Feedback Control:
  1. Load via in-built channel
  2. Via DigiRFM
Up to 2 DigiRFM units can be added to the load frame to enhance its performance. The two most typical use cases for this are:
  1. To connect displacement and pore pressure transducers, meaning no further acquisition is required for a basic triaxial system.
  2. To allows control from another source such as a local displacement transducer or internal loadcell.
Computer Interface



900 x 800 x 2534 (w x d x h)

Load Range (kN)



85-264V, 50/60Hz, single phase

Sample Sizes

Up to 300mm (H) 150mm (W)

Weight Approx (kg)


  •  Digital Remote Feedback Module for closed loop control (Digi RFM).


Tests supported by the 128kN Load Frame, static triaxial testing equipment for soil testing :-

Standards for the 128kN Load Frame, static triaxial testing equipment for soil testing :-