Edge Runner For mixing of foundry chemicals, pastes, moulding sand, foundry fluxes, food colours etc where an amount of binder or agglomerate is to be blended into the material. Also used for increasing the density of the mix. The pan is stationary inside which rotate heavy duty mullers / rollers. The heavy wide rollers ride over the material where intensive crushing, shearing and mixing action takes place. Scrappers and ploughs are provided for directing the mass into the path of the rollers. The machine is also available with granite rolls and pan.