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AZA 1001 AUTOMATIC GRINDING MACHINE
Description
The automatic grinding machine provides fast grinding of cylinder specimen ends to obtain plane and parallel surfaces according to EN and ASTM standards. Three units of ø38 to 100 mm or two units of ø150-160 mm concrete cylinders ends can be ground simultaneously with the suitable cradle and water restraint panel. The length of the any specimen must be longer than 70 mm. According to ASTM and EN standards, the planeness accuracy of grinded surface is 0.05 mm. and the deviation of perpendicularity of the side with reference to the end faces is 0.5o. The equipment has selectable advance grinding time functionality by user from 50 to 400 seconds. Optimum grinding time per end of all type specimens is 90 to 120 seconds. The cradle which specimens are fixed on has automatic bidirectional radial displacement ability. The safe and ergonomic design prevents the user to exposure to water and dust and provides easy access to the water inlet and outlet. Specimen cradles and water restraint panels can easily be installed without the need for any assembly
The preparation of concrete cylinder test specimen for compressive strength
test EN 12390-1, 12390-3, ASTM C31, C39, C192, C617 The maximum tolerance on the flatness of the potential load bearing surfaces (the ends
of compression test specimens) is 0.002 in. [0.050 mm]