Molding machines which are of the
diskpelleter type are of three kinds: the roller disk
die type, the roller ring die type, and the double die
type. Each type has a basic structure of a disk with
many holes and a roller or two disks. The compost
is fed between the disks and/or roller, and as the disk
and/or roller turns, the compost is forced into the
holes, producing the pellets. When compost with a
lot of hard foreign bodies is used in this machine,
damage to the dies and roller is severe, and demands
the frequent replacement of the machine’s
components. However, the machine does not become
blocked, because it able to grind down the compost
even if sawdust and rice straw are mixed into it. This
method is suitable for raw material which has a
comparatively low moisture content of 20-30%.