The Grove GMK6400 is a 450 ton all-terrain crane. The crane has 197 ft of main boom and 259 ft of jib is available. The maximum tip height is 448 ft. This crane is availble with the heavy lift Mega-wing attachment.
The Manitowoc Model 16000 Crawler Crane has a maximum lifting capacity of 440 tons and a 315 foot heavy lift boom, and a luffing jib extension to 432 feet. This crane can be equipped with the WA attachment, as well.