The Hanningfield Uni-Mill B-Series (M10-B, M20-B, M30-B, M60-B) utilises the current industry standard over-driven conical mill design, featuring a belt-driven impeller, rotating inside a screen (60º inclusive screen angle). This principle achieves comminution by compression and shearing of the particles between the impeller and surface of the screen.

The Uni-Mill over-driven models are designed to be used with spacers, allowing customers to adjust and set the optimal gap between the screen and impeller for efficient milling (for spacerless mills see Under-Driven Conical Mills). The Uni-Mill can be supplied with a wide-range of tooling to achieve the required final particle size and throughput. Conical mills are able to achieve size reduction as low as 150 microns (80 mesh) with minimal heat generation and are suitable for both dry and wet milling applications.

As standard, all contact parts are manufactured from 316L stainless steel (180 grit), with FDA compliant seals, gaskets etc. Non-contact parts such as frames, motor covers and control panels are manufactured from 304 stainless steel (150 grit). All standard materials of construction and surface finishes can be upgraded or downgraded upon request.