This friend from Thailand need to produce 300mesh limestone powder, we recommend him YGM Raymond mill(80-325mesh). At the beginning, he doesn't know the type of machine,he told us he need limestone grinding machine, after we knowing his requirements of finished product size, capacity, we recommend him Raymond Mill. This is a machine with ertical structure, so it has small footprint, strong system. It meets fully his requirement of small footprint. Besides, Raymond mill has other features like it has high passing rate - 99%, which is generally not available for other grinding equipments and so on.