First as the 797, then as the 797B, the design of the largest Cat mining truck has proven its productivity, durability and low cost of operation through more than 10 years of service in the world’s most challenging mining operations. Now, the 797F, with 4,000-horsepower (2983 kW) and rated payload capacities to 400 tons (363 tonnes), combines the strengths of its predecessors with a new engine, redesigned operator station and custom body systems to deliver even lower costs per ton-with less environmental impact….more at Cat