Design and Evaluation of a 100 kN m Multi-function Torque Standard Machine

This paper presents the design and evaluation of a Multi-function torque standard machine (MFTSM) capable of calibrating hydraulic torque wrenches, torque multipliers either concentric or nonconcentric up to 100 kN m, and torque transducers with regular or irregular bases up to 2.5 kN m, in clockwise and anticlockwise directions. The machine’s performance was evaluated through a series of calibrations and comparisons that revealed good consistency, as the E_n value tests are less than unity.