UTR-0400 is used for uniaxial compressive strength tests of rock core specimens with Ø47,6 mm to Ø63,5 mm acc. to ASTM.Supplied with 2 pcs. 32mm and 1 pcs. 20 mm distance pieces.

UTR-0408 and UTR-0410 are used for uniaxial compressive strength tests of rock core specimens acc. to ISRM and ASTM.UTR-0408 is supplied with 1 pcs. 10 mm and 2 pcs.15 mm distance pieces and UTS-0410 with 1 pcs. 15 mm and 2 pcs.20 mm distance pieces.

The radius of the upper and lower jaws of UTR-0422 and UTR-0424 are designed in accordance with the sample diameter and they are supplied with spherical seat with a 25- mm half ball bearing acc.to ISRM.

UTR-0426 is designed for testing splitting tensile strength of rock specimens with diameter of 54,7 mm and 63,5 mm and supplied with a distance piece acc. to ASTM.

WARNING : Many rock types fail in a violent manner when loaded to failure in compression. For protecting the operator from this danger, the specimens can be wrapped with a protective shield before the compression test.