Caterpillar 794 AC mining truck makes its show debut at MINExpo

By MEq September 22, 2016 22:29

The 291 t capacity truck uses a combination of proven designs – a chassis design that has accumulated about 18 million operating hours and power train design that has racked up 3 million hours. Following extensive field testing, controlled rollout of the new truck started last year. To date, the 794 AC is operating in four countries – working in applications ranging from deep pit copper in western US to coal and copper in South America.

Mechanical availability of the 794 AC has averaged 90% or better from the introduction and has continued to improve with every new site introduction. The drive system is designed to power the larger Cat 795F AC, which has demonstrated drive train component life of more than 30.000 hrs.
Due to the efficient, fully-integrated Cat power train and machine configuration, the 794 AC has proven to be faster on grade than the competition. The new truck also features four-corner wet disc brakes as well as dynamic braking for stable handling and fast stopping. The 794 AC has industry leading retarding capability in its size class with 4086 kW (5480 hp) of continuous retarding.
The 794 AC uses the Cat C175-16 engine and a proven Cat AC powertrain. System power is adaptable to accommodate changes in production targets and to work seamlessly in mixed fleets where truck speed differences can reduce productivity. Three power options – 2050, 2312 and 2610 kW (2750, 3100 and 3500 hp) – are available using the same engine. High altitude configurations are also available.
The Cat high-efficiency (HE) body is sized and configured to meet the specific needs of the mine, dictated by fragmentation, abrasion, cohesion and the loading tool. The 794 AC body is integral to the truck and is sized to meet the payload requirements without compromising vehicle balance, braking or control.