The high-chromium hammer of the ultra-high fine energy crusher has good performance due to its advanced casting process and precise material ratio. The crusher hammer head is made of high-chromium alloy material, with a chromium content of 23-30%, manganese 0.6-1.2%, silicon 2.5-3.5%, and sulfur and phosphorus content of less than 0.04%, ensuring that it has good wear resistance and toughness in high-impact and high-friction working environments. During the casting process, precision casting and vacuum casting technologies are used, which can effectively eliminate defects such as pores and cracks that may occur during the casting process, ensure that the internal structure of the hammer is dense and uniform, and improve its impact resistance and wear resistance. The surface of the mining hammer has undergone fine heat treatment processes such as quenching and tempering, and the hardness reaches HRC58-62. The surface hardness is extremely high, which can effectively resist the strong impact force generated by the impact crusher during the crushing operation. The crusher hammer head maintains a certain toughness based on ensuring high hardness to prevent brittle cracking under strong impact. Through this advanced heat treatment process, the wear resistance and impact resistance of the mining hammer head is significantly improved, which greatly extends the service life, reduces the maintenance frequency and replacement cost, and ensures the long-term and efficient operation of the crushing equipment.