Drum palletizers is used to lift drum with the ease of power-lift options and transport drum to and from pallets. A number of mechanically assisted techniques exist for palletizing both drums and drum-related containers. Small drum related containers may be palletized manually, but manual palletizing of heavy containers is very likely to result in injury. Mechanically assisted palletizing equipment is sometimes used for palletizing drums and drum related containers. Drum conveyors with forklift-actuated escapements are sometimes used to convey four drums onto a pallet on a forklift truck as the forklift truck backs away from the conveyor. Automatic drum palletizers are used for palletizing drums or stacks of smaller drum - related containers.