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Concrete

ASTM STANDARD - COMPRESSION MACHINES

Four columns prestressed frame machines for production routine tests, designed to be in compliance with the ASTM standards.

The requirements respected are: ASTM C39 | BS 1610 | NF P18-411 | AASHTO T22

Their main features are:

  • Compression platens are surface hardened over 55 HRC and rectified.
  • Device to check piston’s excursion during test.
  • The columns are prestressed to provide a very high rigidity.
  • Piston having 50 mm stroke and cylinder are coupled with high quality packing set.
  • The tank has an oil level and oil discharge.
  • Dial speed selector to display, pre-select and control oil flow.
  • Multipiston power pump assuring continuity of delivery.
  • Fast approach ram device to avoid dead times.
  • Ball seating is accurately machined.


All the machines are divided by their capability and their load measuring system.