The ornamental design for a suctionhead for a material handling lifting device, as shown and described.
FIG. 1 is a perspective view of the suction head for a material handling lifting device showing our new design;
FIG. 2 is a left side thereof;
FIG. 3 is a right side thereof;
FIG. 4 is an end view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof; and,
FIG. 7 is a bottom perspective view thereof.
The broken lines shown in the figures are included for the purpose of illustrating portions of the suction head for material handling lifting device and forms no part of the claimed design.