Folding Endurance Tester (MIT TYPE)

One complete oscillation of the test piece, during which it is folded first back wards and then forwards about the same line and this oscillation is double fold. A test piece is fastened vertically between two clamps. The upper clamp folds, the test piece by means of the reciprocating circular motion while the lower clamp maintain it under a given load.

A spring loaded clamping jaw constrained to move without rotation in a direction perpendicular to the axis of rotations of the specified folding head and having its clamping surface in the plane of this axis. The load is applied by a precision attached to the jaw assembly which is easily adjustable to provide any desired tension on the specimen.