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Shear Strength Test(SST)

Machine used to determine the adhesion strength between the friction material and the metallic pad to which it is bonded.

- The disk brake pad under test is mounted in a specially designed fixture to allow the application of a load to compress a face of the friction material by a vertical pressing cylinder;
- a cylinder applies an incremental force of cross-sectional cut by means of a cutter blade;
- The control system records the force applied at the moment of the separation of the friction material from its support.
Characteristics:
- fixtures of easy construction;
- cutter blade with an insertion device for simple and quick type change;
- automatic computing of the cut effort: relationship between the cutting force and the surface of the brake disc pad under test;
- Possibility to execute tests constituted of some measures, with automatic calculation of the minimum, maximum and mean values of the compression load and the cutting effort;
- Automatic generation of graphic reports;
- Management of archives of test descriptions;
- automatic management of the archives of the results of the executed tests.
Technical characteristics:
- Disk brake pad surfaces from 8 to 100 c㎡ with maximum width 200 millimeter;
- maximum cutting blade approach stoke: 50 millimeter;
- Maximum cutting force : 100 kN;
- Force of vertical compression cylinder : 50 N/c㎡;
- incremental ratio of the cutting force: 4500 N/sec.