More durable and longer life. Faction is our ultimate goal. 360 degree rotation adds maneuverability. 26400lbs machinery mover roller dolly skate with360° swivel top plate 8-rollers us normal load 4t (13,200 lbs / 6000kg). 1 X 12T Machinery Mover. When something need to be moved, the heavy machine dolly skate roller machinery mover with 360 degree rotation cap is best choice for you.