The GDS Hydraulic Axial/Radial Loading Frame (GDSHLF) can be synchronised with the cell pressure (radial stress) to give an advanced capability of dynamic stress paths. A number of optional advanced transducers can be added to the standard system to give measurement of local axial strains and mid-plane pore pressures. Technical specification: Load ranges: 20kN (2ton), 40kN (4ton), 60kN (6ton), 100kN (10ton) and 250kN (25ton). Custom ranges available on request. Axial force accuracy = <0.1% of load cell range (i.e. 1N for 10kN load cell). Axial force resolution = 16 bit (i.e. <0.4N for 10kN load cell, <1.5N for 40kN load cell). Displacement range: 100mm. Displacement resolution: <2micrometre. Displacement accuracy: 0.05% of full range. Control data points = 10,000pts/sec. Maximum saved data points = 100 pts/cycle. Data acquisition = 8 or 16 channel, 16bit. Control modules = closed-loop control feedback system integrated with each independent actuator control unit (shear and axial). Weight: approx. 800 to 2000kgf (depending on model). 

Unit 32 Murrell Green Business Park, London Road, Hook, Hampshire, RG27 9GR, UK. Tel.:+44 (0) 1256 382450, FAX:+44 (0) 1256 382451, e-mail:sales@gdsinstruments.com