Abstract: A device for injecting food products with a liquid, includes a support for the food pieces, a needle carrier placed above the support and movable in a vertical direction, injection needles fixed to the needle carrier and extending downward, feed means for supplying the liquid to each of the injection needles and at least one drive mechanism for driving the needle carrier in the vertical direction. In order to obtain uniform distribution of the liquid in the food pieces, the drive mechanism, which converts a rotational drive into a linear movement, has a number of freely selectable variables so that during the downward stroke the speed of the needle carrier is a constant as possible. This is achieved by equipping the drive mechanism with a planetary gear wheel system. Preferably, the planetary gear wheel system includes a sun-wheel and a planet wheel which have the same diameter and the same number of teeth.