The DP Impact Pulveriser is an all-in-one medium speed screen-less hammer mill that combines feeding, grinding and air classifying into a single compact unit. It is suited to grind down to medium fineness but the adjustable nature of the whizzer classifier allows for ranges right from 60 mesh down to 300 mesh for many different materials. It has been designed to operate well in harsh environments and at continuous duty. It has a tough built and its versatile feature makes it suitable for grinding a plethora of different materials. The entire mill is driven by a single motor. The number of hammers mounted on the rotor can be changed depending on the type of material and desired output. The flexibility of the adjustable gap between the whizzer classifier and the whizzer cone enables precise control of the required output particle size. This allows the same mill to deliver coarse granulation or fine grinding as required with a simple whizzer classifier gap adjustment. The presence of an impeller on the common shaft eliminates the need for an additional external fan for pneumatic conveying of the material out of the grinding chamber.