Prueba Norma Productos

C299 Automatic grinding machine

( Concrete Aggregates-Rocks )

  • EN 12390-2
  • ASTM D4543
  • UNI 6132

The automatic grinding machine is designed to grind and polish concrete cube and cylinder specimens, blocks, natural stones, rocks, ceramic materials etc. Specimens are easily fixed to the table by proper locking stirrups (see accessories) allowing them to grind at a time:

  • n° 3 cube specimens 100 mm side, or
  • n° 3 cube specimens 150 mm side, or
  • n° 2 cube specimens 200 mm side, or
  • n° 2 cylinder specimens Ø 100x200, 110x220, 150x300, 160x320 mm, or
  • n° 1 block with max. dimensions 390x250 mm

The radial movement of the head is equipped with an end-of-stroke system, granting fully automatic displacement in both directions. The column is completely protected against the abrasive dust. The vertical lowering of the grinding head is achieved with infinitesimal adjustments by operating on the top handwheel having 0.05 mm graduations.
The machine, made from a rugged plate, is supplied complete with a control panel, coolant/decantation tank (by water and emulsifying oil), motor pump, set of abrasive sectors, and safety chip guard that when removed, stops automatically the machine.
The standard supply does not include the locking stirrups and the diamond sectors (8 pieces) that must be ordered separately.

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Grinding

  • EN 12390-2
  • ASTM D4543
  • UNI 6132

Sample preparation

  • EN 12390-2
  • ASTM D4543
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  • Designed for grinding concrete cube and cylinder specimens, blocks, natural stones, rocks etc.
  • Simultaneous grinding of many specimens.
  • Motorized radial displacement of the revolving abrasive head in both directions.
  • Automatic movements of the head in both directions and controlled by travel limit switches.
  • Table dimensions: 775x280 mm (useful: 750x235 mm)
  • Grinding wheel Ø: 330 mm
  • Vertical span width: min. 175 mm (95 mm with the distance piece) max. 380 mm
  • Grinding height range: 95...380 mm
  • Grinding head stroke: 215 mm
  • Grinding wheel speed: 1400 rpm.

Power supply: 400V 3ph 50Hz 2700W
Dimensions: 1220x1080x1730 mm
Weight: 410 kg approx.