Real-scale brake testing machine at constant speed Use of the machine Features Technical characteristics Options
  • An AC motor makes the brake disk rotate at a constant speed of 660 rpm;

  • At programmed time intervals brake applications are actuated. They may be controlled in pressure or in torque modalities.
  • It is a reference machine typically used for quality control or for the development of materials in the After Market sector:
    • A (sample) test is carried out on a given sample brake and the results are filed;

    • The brake component (lining, disk, caliper), the quality of which is required to be tested or which is in the development phase, is then fitted and the sample test repeated;

    • The differences between the sample and the tested material are evaluated by analyzing the results.
  • The machine is managed by a PC, which monitors the tests execution.

  • The operator defines the following parameters by interacting with a test description environment:
    • The braking times and the pause between consecutive brakings;
    • The maximum and minimum temperatures for the testing and cooling phases of the brake;
    • The control modalities of each single brake application:

      • In pressure;
      • In torque;
      • In force (applicable if the machine is equipped with the Hand Brake option).
  • During the test, the following Time Histories are recorded:
    • Six temperatures (two of which inside the rotating part of the brake);
    • Pressure;
    • Torque;
    • Residual torque;
    • Force and stroke of the hand brake (optional).
  • 140 kW motor.

  • Maximum torque:
    2 kN*m.

  • Maximum pressure:
    200 bars.

  • Maximum force applicable to the hand brake: 2 kN.

  • Maximum stroke of the hand brake: 50 mm.
  • The machine can be equipped with:
    • Hand brake;
    • Automatic sprinkling of the brake (also with "salt" water);
    • Additional AC motor with vectorial control for tests at a low number of revolutions (from 0 to 10 rpm). This option allows the following types of tests to be carried out:

      • Evaluation of the friction at 3 rpm;
      • Sticking: evaluation of the detachment torque after the brake has been operated for 24 consecutive hours without any release;
      • Evaluation of the static friction (with the brake activation controlled under pressure or force exerted on the hand brake);
      • Hill hold: evaluation of the static holding of the brake during the cooling phase;
      • Creep Groan: research on the noise when starting to move.