A lifting device configured for the carrying and upward displacement of a square egg tray with a tray length and a tray width and provided with a pattern of a tray matrix pattern of cups arranged in five rows (21a-e) and six columns (22a-f) for receiving one separate egg in each recess, wherein a mutual center distance of two adjacent cups in a row (21a-e) is equal to a mutual center distance of two adjacent cups in a column (22a-f), the device comprising a platform extending substantially horizontally with a platform length less than a length and a platform width less than a width of an egg tray that is carried or at least is to be carried, characterized in that said platform either a) on an upper side thereof, is provided with upward-projecting projections that are configured for engaging between the cups of the egg tray on an underside of an egg tray that is carried or at least is to be carried, wherein a projection has a shape of a truncated cone or a truncated pyramid, or b) is provided with holes having a diameter of more than 17 mm extending through the platform or with blind holes, said holes extending through the platform or blind holes each being configured for receiving a recess of an egg tray that is carried or at least is to be carried, wherein the projections, or the holes, are provided in a platform matrix pattern, wherein projections or holes are provided according to a portion of said egg tray to be carried corresponding to the dimensions of said pattern of cups of said egg tray to be carried, wherein midway between each two adjacent rows (21a-e) of projections or holes of the tray matrix pattern, an extra row (21a-e) of projections or holes is provided on, or in the platform, which is staggered relative to the two adjacent rows (21a-e) by half of said center distance. the device comprising a platform extending substantially horizontally with a platform length less than a length and a platform width less than a width of an egg tray that is carried or at least is to be carried, characterized in that said platform either a) on an upper side thereof, is provided with upward-projecting projections that are configured for engaging between the cups of the egg tray on an underside of an egg tray that is carried or at least is to be carried, wherein a projection has a shape of a truncated cone or a truncated pyramid, or b) is provided with holes having a diameter of more than 17 mm extending through the platform or with blind holes, said holes extending through the platform or blind holes each being configured for receiving a recess of an egg tray that is carried or at least is to be carried, a) on an upper side thereof, is provided with upward-projecting projections that are configured for engaging between the cups of the egg tray on an underside of an egg tray that is carried or at least is to be carried, wherein a projection has a shape of a truncated cone or a truncated pyramid, or b) is provided with holes having a diameter of more than 17 mm extending through the platform or with blind holes, said holes extending through the platform or blind holes each being configured for receiving a recess of an egg tray that is carried or at least is to be carried, wherein the projections, or the holes, are provided in a platform matrix pattern, wherein projections or holes are provided according to a portion of said egg tray to be carried corresponding to the dimensions of said pattern of cups of said egg tray to be carried, wherein midway between each two adjacent rows (21a-e) of projections or holes of the tray matrix pattern, an extra row (21a-e) of projections or holes is provided on, or in the platform, which is staggered relative to the two adjacent rows (21a-e) by half of said center distance.