Hilman Rollers Home › Hilman Rollers Hilman Rollers Bull Dolly 4-24 Tons Hilman Rollers FT Series Riggers 15-200 Tons Hilman Rollers Light Duty Riggers 3-8 Tons Ohio Power Tool is proud to offer Hilman Rollers for moving and placement of heavy equipments and materials. If you have any questions on any of the Hilman products either on our website or in their catalog please do not hesitate to contact our professional staff. Manufactured and designed in their New Jersey plant since 1953. Hilman Rollers are low profile, high capacity moving devices that offer a multitude of moving applications. Ranging in size from small machinery to entire bridges, buildings and offshore oil rigs; Hilman Rollers have moved some of the largest objects in the world.