Based on our ACM/A Series grinding machine, the ACM/B series grinders are part of our patented new generation innovative products (China Patent Registration No.ZL02268432.9). The machine is suitable for super-fine grinding of brittle materials. Materials are sucked into the grinder by a pressure differential created by the blower(s) within the system, thus successfully resolving the problems faced by punch-action grinders such as difficulties in grinding large but low-density materials.