Mechanical scale refers to the general term for weighing instruments with mechanical structure as the fulcrum, including balances, case scales, platform scales, spring scales, as well as large and special industrial scales.

    The mechanical weight scale is similar to a balance. The force on the load-bearing plate is transmitted to the internal torque conversion mechanism through the mechanical linkage mechanism, and the force is converted into torque. The torque generated by the incoming force is balanced, and at the same time drives the pointer of the instrument panel to rotate, indicating the weight value. Large mechanical scales and various special scales, including ground scales, ground scales, rail scales (light rail and heavy rail), crane scales, etc.; weight measuring instruments only used in a single industry or single process line are called special scales.

    The processing methods of mechanical weighing instruments are easy to master, the manufacturing cost and sales price are low, and the range of use is very wide. Therefore, it still dominates the market of commercial weighing instruments in my country (accounting for more than 90% in terms of output), and also in industrial weighing instruments. occupies a considerable proportion. However, due to the limitations of design, processing, debugging methods, and other conditions, mechanical weighing instruments are bulky, and their accuracy, weighing accuracy, and measurement speed are restricted to a certain extent. Therefore, they have been gradually replaced by electronic products with superior performance. The market is gradually shrinking, and the processing capacity is obviously in surplus.