Automatic Fabric Stiffness Tester, For Industrial Use, Feature : Electrical Porcelain, Proper Working

Employing the principle of cantilever bending, a rectangular specimen is supported on a smooth low-friction horizontal platform.  A weighted slide is placed over the specimen and advanced at a constant rate.  As the leading edge of the specimen projects from the platform, it bends under its own weight.  The bend angle indicator can be set at either 41.5° (0.724 rad) or 45° (0.785 rad) below the plane of the platform surface, and includes an easy to read bend angle reference scale with 5° graduations.  Once the material flexes enough to touch the bend angle indicator, the test is stopped.  Using a scale calibrated in both metric and English units, the length of the overhang is then measured and flexural rigidity and bending modulus can be calculated.

The Fabric Stiffness Tester is available with or without the Hand Crank Speed Control Option.  This feature allows the operator to control the rate of speed that the specimen is advanced.

NOTE: In general this instrument may not be suitable for very limp materials or those that show a marked tendency to curl or twist at a cut edge.