High volume forklift attachment for handling 4-drums at one time. Note- S4F will not handle less than 4 drums at once.. Automatic and mechanical operation. No hydraulic or electrical connections necessary. Unit slides directly onto forks of any forklift and handles all conventional rimmed steel, plastic, and fiber drums. Secures to forklift with safety chain and gravity fed knurl wheel restraint system included with unit. Parrot-Beak clamps handle any group of four drums so long as drums are within 1.5" inches of each other in height. Drums can be up to 4" inches apart in a group and still all be engaged in one up/down motion. Short frame will only handle 4 drums at one time, but provides lower upper clearance for loading trailer or container. Liftomatic also offers Long frame model L4F which handles 1,2,3 or 4 drums at a time. Either model is recommended for high volume production and warehouse facilities handling large numbers of unit loads and/or traveling over long distances with drum cargo. Ideal for high density storage facilities and/or applications moving drums in unit load to and from pallet positions on a regular basis.