Machine for filling capsules with powder, especially pharmaceutical or neutraceutical powder. The machine includes a powder feeder (1) comprising a feed hopper (2) having a pair of sensors (3, 4) located therein at different levels to sense the minimum and maximum powder levels in the feed hopper. A feed screw (5) is horizontally rotatably disposed in a chamber (6) located at the bottom of the feed hopper. Drive means (11, 12, 13) is connected to the feed screw at the driven end thereof. The leading end of the feed screw extends to a powder discharge duct (15) depending down from the chamber and extending into a powder tub (16) disposed for rotation intermittently at intervals about a vertical axis (Fig 1).
