Rock Strength Index Apparatus measures the strength of rock samples, including irregularly shaped specimens, through direct compression tests. This device provides accurate and reliable measurements, making it a valuable tool for rock mechanics and geotechnical studies.

The apparatus features a 60 kN capacity load frame with a hydraulic loading ram, allowing it to test samples up to 102 mm in diameter. It also includes a digital display for precise load readings, a ruler for measuring platen distances, and compatibility with compression platens for small-core and cylindrical specimen testing. Its portability and resistance to failure shocks make it a practical tool for field and laboratory use, supporting engineers and researchers in evaluating rock materials’ strength and integrity efficiently.

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