The universal material testing machine is mainly used to measure the physical properties of materials or products, such as: steel yield strength, tensile strength, hydrostatic time measurement of pipes, fatigue life of doors and windows. The chemical composition used to measure the chemical properties of a material is generally called an analyzer, not a test machine. Test machine concept and use test machine is to measure the mechanical properties, process performance, internal defects of metal materials, non-metal materials, mechanical parts, engineering structures, etc. under various conditions and environments, and to verify the dynamic unbalance of rotating parts. instrument.