The CartCaddyHD Chain Drive electric tug is the heavy-duty upgrade to the CartCaddyHD. The 5000 lb electric/hydraulic lift system transfers weight from the load to its drive wheels where the electric tugger/cart gets its traction. One of the most common applications of the CartCaddyHD Chain Drive cart mover is the cart with two straight casters and two front swivel casters. When attached to the swivel caster, the CartCaddyHD Chain Drive electric tugger provides the pushing and pulling power that is necessary for easy turning and smooth maneuvering with the cart mover. The CartCaddy Heavy Duty Chain Drive powerful 6 hp motor can provide up to 2000 lbs of horizontal push and pull force, eliminating the need for a fork truck in heavy cart and equipment pulling applications. The CartCaddy gets their traction by transferring weight from the cart to its drive wheels with a 5000 lbs hydraulic lift kit.