 The action in the agglomeration drum, combined with small additions of cement or lime, binds the fines into a "pelletised" product, which can be heaped and leached out without "pooling" and "channeling" caused by loss of heap permeability due to blinding by fines.The machine uses flexible rubber liners to prevent build up without the use of lifter bars and is adjustable on a pivotable base frame.Shell supported agglomerators such as the Sepro PTD Agglomeration Drum minimize stress on the shell by spreading the power drive over the full length of the unit.