Is It Necessary to Use a Bimetallic Hammer for a Crusher?

Whether the hammer of the crusher needs to use bimetallic material needs to be considered comprehensively in combination with material properties, production costs and equipment operating efficiency. At present, the hammers on the market can be divided into high manganese steel hammers, bi-alloy hammers, high chromium alloy hammers, etc. according to the material. When processing high-hardness ores (such as granite, iron ore) or materials containing more metal impurities, the bimetallic hammer can form a high-hardness wear-resistant layer on the surface of the hammer by combining two metals with different characteristics, while retaining a tough support structure inside, which can not only resist the risk of fracture caused by strong impact, but also slow down the wear rate, and increase the life of the hammer by 2-3 times compared with the traditional single-material hammer. This feature is particularly critical in production scenarios with continuous operation and high downtime costs, which can significantly reduce the frequency of replacement and reduce the loss of production capacity caused by frequent maintenance.

However, if the crushing object is a low-abrasive material (such as coal, gypsum), or the equipment load rate is low, ordinary high manganese steel hammers can meet basic needs. At this time, although the use of bimetallic hammers can extend the service life, its high purchase cost may make it difficult to achieve economic balance by reducing the number of replacements. In addition, in some working conditions, the material composition is complex and changeable, such as the presence of mixed soft and hard ores. The comprehensive advantages of the bimetallic hammer in impact resistance and wear resistance can avoid early failure problems caused by material incompatibility and reduce the risk of equipment chain damage caused by sudden fracture.

In general, the necessity of bimetallic hammers depends on the dynamic matching of material abrasion strength, equipment operation intensity and enterprise cost control goals, and technical and economic evaluation needs to be carried out in combination with specific scenarios.