Pull Test

Select a dynamometer or force gauge rated at 1.25 to 2 times the maximum pull force you expect to apply. For field pull tests on anchor bolts, guy wire attachments, and utility hardware, the Dillon AP mechanical dynamometer series covers most common capacity ranges. For lower-capacity lab or QC pull tests, the Dillon Model X force gauge is typically appropriate. Contact Dynamic Measurement Systems at 281-405-0606 to match the right instrument to your pull test specification.

Yes. A pull test performed with an uncalibrated instrument produces a result that cannot be documented as accurate and cannot satisfy a compliance requirement, customer specification, or standard. The calibration certificate of the instrument used in a pull test is part of the documentation record. Dynamic Measurement Systems provides NIST-traceable calibration with certificates designed to pass utility, aviation, and industrial compliance audits.

A pull test verifies the holding strength or breakaway force of a specific connection — it may be performed to failure or to a specified minimum load. A proof load test applies a predetermined overload (typically 1.25 to 2 times the working load limit) to a lifting device or rigging component to confirm structural integrity without destroying it. Both require a calibrated dynamometer; proof load tests have stricter documentation requirements under standards such as ASME B30.