A turning wheel comprising a number of blades. Each blade has a front side provided with a front projection, and a back side provided with a back projection. Each two consecutive blades form a gap between the backside of a first blade and a front side of a second blade. The gap comprises an inner gap formed radially inward from the back projection and the front projection. During rotation of the turning wheel a container can be held in the gap and an end portion of the container can be held in the inner gap, thereby protecting the end portion from being damaged.