This invention is directed to a method for creating cure gradients in golf balls and golf ball cores by the application of high temperatures from infrared radiation. The position base is respectively fixed on two vertical cross-shaped tubes combined with an inverted U-shaped handle of a hand truck. Further, the actuating mechanism includes a lifter configured to lift the target to a substantially upright position, a vertical rail system and a carriage vertically moveable along the vertical rail system, and an electric motor configured to move the carriage along the vertical rail system.