Method and machine for filling capsules or similar with at least one product, in particular a pharmaceutical product in microtablets

A machine for filling capsules with at least one product;

• each capsule comprising a bottom shell (2), and a top shell closing the bottom shell (2);
• the machine comprising a conveyor device (16) for feeding each bottom shell (2) continuously along a given path (P);
• at least one container (21) for the product;
• at least one metering wheel (5) mounted to rotate continuously about a substantially vertical longitudinal axis (7);
• and a number of metering devices (31, 42) movable with the metering wheel (5) along a portion of the path (P), in time with relative bottom shells (2);
• each metering device (31, 42) comprising a respective metering chamber (42) for transferring the product from the container (21) into the relative bottom shell (2), and, for each metering chamber (42), feed means (30, 45) for selectively transferring the product from the container (21) into the metering chamber (42);
• and the machine being characterized by also comprising a weighing device (37, 38) for weighing the product contained in each metering chamber (42);
• the weighing device (37, 38) being connected to the feed means (30, 45) to cut off supply of the product from the container (21) to the metering chamber (42) when the weight of the product determined by the weighing device (37, 38) substantially equals a reference value memorized in the weighing device (37, 38).