General Description

The rock strength index apparatus consists of a high stability load frame 100 kN cap. with hydraulic loading ram actuated by a hand pump. Loading fram...
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Description

The rock strength index apparatus consists of a high stability load frame 100 kN cap. with hydraulic loading ram actuated by a hand pump. Loading frame and manual pump are independent resulting in a superior functionality and usability of the equipment.
The unit is conforming to ASTM D5731 and ISRM suggested method and the wide testing area allows to test both rock cylinders and irregular shaped samples.
It features an ergonomic digital readout unit with graphic display battery operated and  membrane keyboard.
The compression load is measured by a in-built pressure transducer, assuring the best accuracy and resistance to the failure shocks. A ruler is assembled on the frame allowing the direct measurement of the distance D between the conical platens before and after the test.
The complete set is housed in an ergonomic carrying case with wheels.

 

Products

Code
Description
Units

Technical Specifications

  • 100 kN capacity
  • 128 x 80 pixels graphic display with 6 keys membrane keyboard
  • In-built rechargeable LiPo type battey
  • Effective resolution: 18 bit (1/262'000 div.)
  • Load measurement accuracy: ± 1 % 
  • Load resolution: 1 N
  • Load measurement by pressure transducer
  • Lower crossbeam position measurement by in built meter 
  • Piston travel: 100 mm
  • Distance between conical platens: 100 mm
  • Distance between compression platens (accessory 32-D0550/D5): 102 mm
  • Distance between columns: 108 mm
  • Dimensions and weight of frame / hydraulic jack:
    • Dimensions (l x w x h): 200x200x418 mm
    • Weight: 14 kg
  • Dimensions and weight of manual pump:
    • Dimensions (l x w x h): 798x160x310 mm
    • Weight: 8.3 kg
  • Dimensions and weight of carrying case:
    • Dimensions (l x w x h):  447 x 265 x 558 mm
    • Weight: 7.7 kg

 

Standards

  • ASTM D5731
  • ISRM

Accessories and Spare Parts

Code
Description
Units