In many fields such as industrial production, logistics and transportation, and commercial trade, mechanical scales are the core tools for weight measurement. Their accuracy and stability have a vital impact on product quality, cost control, and transaction fairness. However, the performance of mechanical scales is restricted by a variety of external factors, among which material characteristics are particularly critical.

Material humidity is one of the important factors affecting the accuracy of mechanical scales. Materials with too high humidity are prone to adhere to the scale surface, causing contamination of the scale surface and adding extra weight, which significantly affects the accuracy of the measurement. Especially when dealing with sticky materials such as wet coal and wet soil, the adhesion phenomenon of the scale surface is particularly obvious, which may lead to high weighing results. In addition, changes in humidity may also cause changes in the volume of the material, further affecting the weighing accuracy. Therefore, when using a mechanical scale to weigh materials with high humidity, necessary pretreatment measures must be taken, such as drying or dehumidification, to reduce the impact of humidity on the measurement results.

The particle size and fluidity of the material also have a direct impact on the weighing accuracy of the mechanical scale. Materials with larger particle sizes may cause uneven distribution during the weighing process, resulting in uneven force on the scale surface, affecting the accuracy of the measurement. Materials with poor fluidity, such as powdered materials, are prone to accumulation or blockage on the scale surface, which in turn leads to weighing errors. In addition, the fluidity of the material also affects the speed at which it slides off the scale surface, which is directly related to the weighing rate. Therefore, when choosing a mechanical scale, the particle size and fluidity of the material should be fully considered, and a scale type with a suitable weighing range and weighing rate should be selected to ensure the accuracy and efficiency of the weighing.

The hardness and abrasiveness of the material are also important factors affecting the service life of the mechanical scale. Materials with higher hardness may cause scratches or wear on the scale surface during the weighing process, which in turn leads to a decrease in the accuracy of the scale surface and even damage to the scale body. Abrasive materials may accelerate the wear of the scale surface and internal parts, thereby shortening the service life of the scale. Therefore, when handling materials with higher hardness or strong abrasiveness, it is particularly important to choose a scale surface material with wear-resistant and corrosion-resistant properties (such as stainless steel, alloy steel, etc.), which can effectively improve the durability and stability of the scale.