SATRA STM 101F SATRA upper material flexing machine in freezer
Flexing tests are sometimes required to be carried out at low temperatures. This determines the suitability of materials being tested to flex at temperatures below 0°C. SATRA provides a range of these machines and uses a low temperature cabinet specifically designed to suit the test.
The SATRA low temperature cabinet ensures maximum operator safety by having the electrical control and drive systems outside the freezer area where moisture cannot impair electrical safety. The control system incorporates a digital temperature controller which can be set to achieve the desired temperature from ambient down to -20°C, plus a counter to indicate the number of flexes carried out. The counter can be preset to stop the drive mechanism when completed.
This is a 16-station version of the SATRA vamp flexer. The stations are located inside the freezer area to allow simple loading of test specimens and easy/frequent inspections without having to stop the machine.
This is a SATRA preferred test as it replicates the creases formed in the upper (vamp) during walking and gives a more realistic indication of premature failure of the material similar to that experienced in normal wear.
For further details about this test refer to model STM 601.