Caterpillar 789 Haul Truck Overview
The CAT 789D is a lot faster than it’s competitors in certain applications. For a lot of mining companies, the Caterpillar brand is preferred over other makes. The Caterpillar 789 dump truck is typically used in open pit mining. The 789 has a capacity of 177 tonnes, and its engine can produce 1770 horsepower.
There are a lot of Cat 789 dump trucks on various mine sites in Australia; working hard in open-cut coal mines as well as hauling raw iron ore dirt across the open, dusty mine sites of Western Australia.
CAT 789D specs
- Engine Model – 3516C – HD
- Gross Power – 2100.0 HP
Transmission
Forward – 1 | 7.8 mile/h |
Forward – 2 | 10.6 mile/h |
Forward – 3 | 14.4 mile/h |
Forward – 4 | 19.4 mile/h |
Forward – 5 | 26.3 mile/h |
Forward – 6 | 35.5 mile/h |
Reverse | 7.3 mile/h |
Engine Model | 3516B EUI |
Gross Power | 1900.0 HP |
Rated Net Power – ISO 9249 | 1791.0 HP |
Bore | 6.7 in |
Stroke | 7.5 in |
Displacement | 4211.0 in³ |
Cooling and Onboard Management Systems
- The new modular higher density cooling system with larger fans is hydraulically driven for more efficient cooling with lower fuel consumption and noise levels
- Optional oil renewal system extends engine oil change intervals from 500 hours to 4,000 hours or more to increase machine availability and reduces costs.
- Computerized system electronically protects the engine during cold starts, high altitude operation, air filter plugging, and high exhaust temperature.
- Five configurations are performance matched to meet specific applications and conditions.
Truck Body Systems
- Caterpillar designed and built the CAT 789D for rugged performance and reliability in the toughest mining environments.
Serviceability
- Less time spent on maintenance means more time on the haul roads in some of the world’s biggest mines.