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SATRA STM 141 Ross flexing machine

STM 141 Ross flexing machine image

This machine is used to measure the resistance of non-leather shoe soling to cracking in wear due to flexing and can test 12 strip test pieces at a time. This machine can also be used to test whole soles. It normally runs at 60 flexes/minute, but for tests to ASTM standards a motor to give 100 flexes/minute can be fitted.

This test should nearly always be carried out at low temperatures so a model, STM 141F, is fitted into a refrigerated cabinet with the motor drive and control on the outside of the cabinet.

Sample preparation can be simplified using the STD 405 Chisel holding jig.

For Chisels see below: