Specimen Grinding

The GCTS Specimen End Grinders provide the final step to prepare test specimens with parallel and flat ends according to ASTM and ISRM specifications. The grinders are driven by heavy-duty electric motors for durability and come with a 152 mm (6″) diamond cup wheel. Each grinder moves the specimen across the face of the grinding wheel, allowing the entire face of the specimen to be ground flat with a single pass.

GCTS also offers Specimen Core Drills, Specimen Lab Saws, and a Specimen Verification Kit to fully prepare a cylindrical rock specimen for testing.


Relevant Standards
ASTM D4543 Standard Practices for Preparing Rock Core as Cylindrical Test Specimens and Verifying Conformance to Dimensional and Shape Tolerances



  • Full specimen coverage in a single pass to make core loading faces flat and parallel according to ASTM and ISRM specifications
  • 1.67 HP electric motor
  • 152 mm (6”) diameter  diamond grinding cup-wheel
  • Precision-machined turntable for fast and easy specimen rotation (no disassembly required)
  • Includes holding jig for specimens from 25 mm to 100 mm in diameter
  • Vortex tube air cooling for grinding wheel and dust collection systems
  • Digital readout to display the position of the specimen
  • Automatic feed to move the specimen across the grinding wheel


  • 230/380/460 volts, 50/60 Hertz, 3 phase


  • Weight: 415 kg
  • Dimensions (meters): 1.4W x 1.4D x 1.6H

Are you interested in our Specimen Grinding solution? Contact us today!

Specimen Grinding

Product - Contact Form

  • This field is for validation purposes and should be left unchanged.