As a core piece of equipment in mineral processing, the 0921 ball mill's design features ensure its wide adaptability to a wide range of ores. This model utilizes a horizontal, cylindrical rotating structure, using steel balls to impact and grind the material. Its high crushing ratio and high grinding efficiency make it a key component in the mineral processing process.

Depending on the ore discharge method, the 0921 ball mill can be divided into two main types: grate type and overflow type. The former is suitable for coarse grinding, while the latter is more specialized for fine grinding. Its flexible drum diameter range (900mm-4500mm) and feed size (≤25mm) allow the machine to adapt to the processing requirements of ores of varying hardness by adjusting the speed and media ratio. Its energy-saving design utilizes hydrostatic and dynamic bearings and variable frequency speed control technology, reducing energy consumption and extending equipment life, ensuring continuous production. These technical features together form the foundation for the 0921 ball mill's versatility in processing both metal and non-metallic ores.

The 0921 ball mill demonstrates exceptional adaptability in metal ore processing, particularly for ferrous and non-ferrous ores. For ferrous ores like iron and manganese, its grid design effectively prevents over-grinding, and its forced discharge mechanism promptly separates the coarsely ground product, making it suitable for processing hard magnetite and hematite. In the processing of non-ferrous ores like copper, lead, and zinc, overflow ball mills can be combined with a two-stage grinding process to finely grind the ore to a separation particle size of 0.074-0.89mm, meeting the fineness requirements of flotation operations. Precious metal ores like gold require even grinding. The 0921 ball mill, through its multi-stage steel ball ratio and adjustable drum speed, achieves thorough separation of gold ore. Its rubber lining also reduces the noise typical of metal ores. For light metal ores like aluminum and magnesium, its wet-type energy-saving features significantly reduce energy consumption, while its long-drum design is suitable for processing bauxite, which requires extended grinding times.