SATRA STM 141 Ross flexing machine

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:

Consumables:

• STD 405A Chisel for ASTM Test