WHITE PAPER EZ-TORQ III TORQUE ANALYZER
How to measure power tool torque output with a static / reaction torque analyzer or torque sensor 1 Adjust the torque of power tool to the minimum torque setting. 2 Adjust the torque analyzer to the desired type of unit of torque measurement. The torque analyzer or sensor should be properly secured on a solid surface or a test bench. 3 Always use a quality joint rate simulator (run down adapter or RDA*) with a torque analyzer when testing power tools. 4 The run down adapter (RDA) is mounted in-line between the tool’s drive and torque analyzer or sensor. 5 When the power tool applies torque the RDA engages the static or reaction torque sensor, creating a torsion movement. The RDA runs down creating compression and the sensor will detect a maximum peak applied and the torque reading will be displayed. 6 The power tool is then adjusted up or down of its torque capacity and retested until achieving the desired torque value for the application. 7. Once the desired torque is set, several torque readings need be taken to evaluate the tool’s repeatability. The lower percentage value of repeatability, confirms accuracy and reliability of the tool’s fastening cycles for the fastening process. Mountz recommends a CmK test study to preset a power tool, taking in consideration the tool’s speed, accuracy, and the target torque with low and high torque limits, to perform the test. The result will be based on tool’s performance for the intended fastening application for the manufacturing process. Tool accuracy can’t be based on a tool’s performance alone. 8 A good quality assembly process requires all torque tools to be verified with a torque
measuring device on a daily basis. *Note: RDA is not needed for pulse tools.
4
Made with FlippingBook Annual report maker