High efficiency pin-type grinding structure is suitable for continuous and circular production of nano-scale grinding with a large flow rate. Production efficiency can be increased by 30~50% after integrated into production line. Widely used in nano new materials, magnetic materials, electronic ceramics, ceramic inks, lithium iron phosphate, alumian and other industries. The newly upgraded, more accurate and stable operating system, in which flow rate can be set on the PLC and a new safety production protection function is added.