||Benefits to the user
|Teflon coated low friction retaining rings:
||A cylindrical soil specimen is laterally confined by teflon coated low friction retaining rings, ensuring a constant cross sectional area (or K-zero conditions).
|Electro-mechanical actuators that give superior performance, reduce space and provide cost savings:
||Electro-mechanical actuators can carry out tests up to +/-1mm at 5Hz, with greater accuracies than comparable pneumatic actuators. Mains powered means no external noisy power pack is required and as opposed to pneumatic systems electro-mechanical systems draw only the power that is required.
|Active height control:
||Therefore constant volume conditions are enforced i.e Simple Shear. No manual intervention between stages plus little or no effects of vertical compliance.
|Axial & Shear linear guidance provided by super-stiff crossed-roller bearings:
||200mm bearing length not only provides stability while ensuring minimal rotation of the topcap during shearing, allowing testing to be simple shear rather than rotational motion, but also provides high load capacity with low friction with accurate linear guidance.
|GDS shear loadcell:
||Designed so that shear force is measured in front of the linear guides, as such the shear force measurement does not include frictional errors.