ESTECHMAGNETICS.COM | 785-806-5211 6 ESTECH MAGNETICS PRODUCTS 2025 Standardized Magnetic Testing Procedure (SMTP): Testing Program and Specifications Written by: Eric Stechmann, Estech LLC Purpose: A precise, repeatable method for determining real-world bracket embodiment performance from industrial magnetics is desired within the telecommunications industry. This testing procedure uses average circumstances seen in installation locations and provides the ability to test tension forces on a variety of angular point locations within the magnetic bracket body. This test will better allow the industry to record and predict real-world bracket system performance in average circumstances prior to deployment in industrial outdoor settings. A flat plane of steel which is analogous to AWWA and NACE standards can be produced in a modular form on a facility concrete floor for the purposes of this test. Materials: • 3 feet by 3 feet square mild steel plates with ½” bolt locations • Polyurethane coatings applied within 10-12 mils onto the blasted, clean surface of the plate material • 5,000 pound load cell, traceable calibration, with a remote digital interface • Digital angle gauge • One or multiple video camera locations to document the procedure • One video camera location to document the maximum tension (pounds) prior to performance yield • Gantry system that is capable of floor-parallel and floorperpendicular tension up to 5,000 pounds • Gantry system pivot cam pully system that is able to slide and fix into place the exact position of cable placement • Pulling tension force may be induced by (hand, ratchet cable binder, winch or vehicle hitch) • All safety and PPE materials and practices Tested Load Requirement Each magnetic bracket embodiment will be tested along a combination of tensile directions. Tension attachment locations shall be recorded and height above steel surface also recorded. • X-Axis 0 Degrees • X-Axis 30 Degrees • X-Axis 45 Degrees • X-Axis 60 Degrees • Y-Axis 0 Degrees • Y-Axis 30 Degrees • Y-Axis 45 Degrees • Y-Axis 60 Degrees • 90 Degrees on centroid of magnetism Yield Definition Magnetic force will be tested to the yield condition of the bracket embodiment. For the purposes of this testing procedure, the yield point will be defined as the average maximum tension force experienced which induces a kinetic deflection along and within .25 inches of surficial movement along the length of travel. A marking scale can help with visualizing this .25 inch reference such as a length of contrasting tape. Up to three tests may be necessary to produce a repeatable, clear average of tensile force. For the purposes of this testing procedure, the yield point will be defined as the maximum tension force experienced at the vertical (90 degree) pull off breakpoint experienced if tested perpendicular to the floor. Reporting Results from these calibrated tension forces will be aggregated into a spreadsheet with each procedure as the vertical column and the bracket embodiment as the row.
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