Abstract: A robotic palletizing system is provided for receiving objects from a conveyor and loading the objects on a pallet using a robot having an articulated arm assembly. A lift station is located below the robot and includes a lift assembly that is operable to raise an object in a lift area of the lift station to a pick position from which the robot can grasp the object. When the lift is raising an object, a barrier is raised to prevent any other objects from moving into the lift area. A sensor is operable to detect objects moving into the lift area and a sensor bank is operable to detect the presence and size of any objects in the lift area.