The pellet dosing chamber (2) of the machine comprises a plurality of dosing chamber sectors (14) disposed side by side and mounted for rotation about a first vertical axis (X1) together and for guided up and down movement relative to one another about the first vertical axis. Each dosing chamber sector has atleast one row of main dosage metering passages (19) transversely extending therethrough and a radially displaceable bottom sector plate (2) located underneath the dosing chamber sector and having atleast one row of complementary dosage metering passages (21) extending transversely therethrough matching in position and size with the main dosage metering passages in the dosing chamber sector. A differential drive cum displacement mechanism (22) is configured to operate the dosing chamber sectors and the bottom sector plates. A piston assembly (55) is mounted at the ejection station to eject dosages of powder. The pellet turret maintains uniformity of pellet dosages and has several other advantages. (Fig 4)
