For a 30TPH (tons per hour) capacity of calcite powder grinding, some common models could be:
Vertical Roller Mill Model: These mills are known for their high efficiency and large production capacity. For example, a certain brand's advanced vertical roller mill model might be capable of achieving this output with proper configuration.
Raymond Mill Model: Some upgraded Raymond mill models can also handle such a throughput when appropriately sized and equipped.
However, the specific model selection depends on various factors such as the desired fineness of the calcite powder. It's recommended to consult with professional manufacturers and engineers to determine the most suitable model for your specific needs.