Stiffness test set
Model 150B & 150E Taber Industries

The TABER® V-5 Stiffness Tester - Models 150-B or 150-E are used to evaluate stiffness and resiliency properties of materials up to 10,000 Taber Stiffness Units. This precision instrument provides accurate test measurement for specimens 0.004" to 0.219" thickness. Materials include paper products, cardboard, plastics, metals, textiles, rubber, wire, tubing, felts and other sheet materials.

Incorporated in the TABER V-5 Stiffness Tester is a bi-directional pendulum weighing system. Force is applied to the lower end of the specimen by a pair of rollers. The rollers, which are attached to a driving disc located directly behind the pendulum, push against the test specimen and deflect it from its vertical position. The pendulum applies increasing torque to the specimen as it deflects further from its original position. The test point reading occurs when the pendulum mark aligns with the appropriate driving disc mark (7 ½° or 15°), which points to the stiffness reading on the dial point. The final reading will depend on the range in which the test is being conducted (which dictates instrument set-up and the appropriate scaling factor to use). The instrument outputs the moment load applied to the test specimen in TABER Stiffness Units (g * cm).