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Manual Pressure Equipment for Lateral Pressure in Hoek Triaxial Cell


The manual pressure equipment is used for maintaining the constant lateral pressure in the Hoek triaxial cells and consists of: a hydroponic hand pump with oil reservoir (TGE-3800), a precision LPI digital readout unit (TC-4920LP), a pressure transducer (TGM-0200) and a 1.5m long flexible hose with quick release coupling.

Any capacity which depends on the rigidity and sizes of the rock specimens to be tested, EN or ASTM automatic compression testing machines can be used for appliying the vertical loads required for the triaxial and uniaxial tests. As an option for weaker rock specimens, the compression machines can be upgraded with option UTC-0210 special calibration procedure to have Class 1 starting from 1% of the full range of the capacity

To see the details of Hoek Triaxial Cells required for triaxial testing of rock specimens, please view the ‘Rock Triaxial Test Accessories’ page.


  • EN 1926
  • EN 14580
  • ASTM D2664
  • ASTM D2938
  • ASTM D3148
  • ASTM D5407


Accessories are not included in the price of main device (unless stated otherwise) and may be purchased separately if required.

TR-0455 Hoek Triaxial Cell BX Ø42.04mm Dia.
TR-0457 Hoek Triaxial Cell NX Ø54.74mm Dia.
TR-0460 Hoek Triaxial Cell HQ Ø63.5mm Dia.
TR-0400 Compression Jig Assembly
TGE-3800 Hydraulic Hand Pump, 700 bar
TC-0200 Pressure Transducer


Technical specifications are subject to change without notice.

Lateral Pressure Equipment
Max. Working Pressure 700 bar (70 MPa)
Dimensions mm (W x D x H) 1050 x 500 x 300
Weight (approx.) Kg 20