Abstract: The present invention provides a clamp transfer device which keeps a load from incurring damage and transfers the load at a high-speed. The transfer device includes: a first member which is attached so as to rotate about an axis of rotation perpendicular to a horizontal direction in which the load is clamped, and makes contact with the load, the first member having a profile with (i) a first radius stretching from the axis of rotation to a periphery of the first member, and (ii) a second radius being shorter than the first radius; a second member which clamps the load by working together with the first member; and a first clamping mechanism which (i) rotates the first member about the axis of rotation so that a distance between an end portion of the first radius and the second member diminishes, and (ii) produces a clamping force for clamping the load.