How Does Mechanical Hanging Scale Work?

Mechanical hanging scales can be traced back to ancient times, and it was one of the earliest tools for people to measure the weight of objects. In the early days, people used simple scale beams and trays to weigh items, but over time, people began to use springs, weights, and other materials to make more accurate scales, which usually consist of hangings, springs, hands and housings, etc. components. When an object is hung from the hanging, its weight causes the spring to bend or stretch, which is indicated by a pointer attached to the spring, indicating the weight of the object. The shape and elastic constant of the spring can be selected according to the load-bearing capacity and precision of the scale.

Mechanical hanging scales typically use gravity to read the weight, so they can work without a power source, making them ideal for outdoor environments.

They're also simpler and less expensive than digital scales and don't require complicated maintenance.

The mechanical hanging scale also has an advantage over other scales. It does not need a tray, which means that it can be applied to weighing items of various shapes. Of course, it needs items that can be hoisted.

However, their accuracy may be affected by temperature and other environmental conditions, weight readings require manual observation of the pointer, there may be reading errors, and periodic calibration may be required.