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Caterpillar mining truck features 10 percent increased payload and faster movement on grade

A mining truck with a load drives down a road
The Cat 789 mining truck

The new Cat 789 mining truck looks to offer efficiency gains, ideal cab comfort, and new connectivity solutions. Its design offers a weight advantage to haul more material every load and deliver a cost-per-ton advantage.

The new 789 mining truck moves more material with less fuel, offering up to nine percent reduced fuel consumption compared to the Tier 2 design. An advanced powertrain increases engine life by 12 percent and delivers better shifting and acceleration. This mining truck features 10 percent more payload and is over five percent faster on grade than competitive trucks. 

The design of the 789 mining truck

The Cat 3516E engine powering the new 789 mining truck is fuel-optimized for lesser regulated countries or can be configured with selective catalytic reduction (SCR) for meeting EU Stage V and U.S. EPA Tier 4 Final standards. Two power selections offer 1,417 kW (1,900 hp) to match the performance of existing fleet trucks or 1,566 kW (2,100 hp) for faster cycle times. 

Delivering long-life reliability, the new engine features design modifications to the camshaft and piston for ideal fuel efficiency. Structural improvements to the cylinder head and crankshaft help deliver 12 percent more durability than the 3516C. The engine's 23 percent net torque rise delivers ideal lugging force during acceleration on steep grades and in rough underfoot conditions.

Offering smoother transitional shifting, the 789's advanced power electronic control strategy (APECS) transmission delivers productivity and efficiency improvements that can reduce cycle times. Forward momentum and torque are maintained while shifting with gear selection resulting in faster acceleration. It offers more continuous torque and rimpull to deliver more power to the ground, making it possible to use a higher gear on grade to optimize fuel efficiency. 

A choice of multiple body style configurations allows mines to equip the 789 to meet specific site needs. The body maximizes payload by reducing the weight by two to five tonnes (2.2 to 5.5 tons) or more. The mine-specific body excels in mature mines, while the combination body combines features of high volume and optional liners to haul both ore and overburden. The original standard, dual slope body, provides load retention, and the X Body features new structural designs and offers more volume at a lower weight.

The interior of the Cat 789 mining truck

The updated cab of the Cat 789 mining truck

The 789's larger, more ergonomic cab improves operator efficiency and productivity. At 17 percent wider, the cab's walk-through design with a fully adjustable centre console offers 34 percent more operator space, 11 percent more legroom, and 19 percent more shoulder room. Featuring 40 percent less sound pressure level (SPL), the quieter cab includes automated temperature control and cab filtration for a more comfortable environment.

Two 254-mm (10-in) screens consolidate all machine data, controls, and guidance information, and applications like Cat MineStar to reduce the number of required displays. New speed coaching provides operators with real-time feedback on truck operation while more accurate measurements on the payload monitoring system deliver improved load tracking. Its 360-degree surround view camera with object detection alerts operators to hazards within the immediate vicinity, making it easier to safely operate the 789.

Connectivity solutions available on the Cat 789 mining truck

Fully integrated Cat electronics on the 789 includes 100 Mbps, two-wire ethernet connectivity for faster data transfer. The technology platform includes every 789 being factory-equipped with Cat Product Link Elite with standard connectivity via cellular 4G/LTE and available cellular/satellite radio for reliable data transfer. 

The ability to access and analyze accurate, real-time data enables faster diagnostics and helps predict and prevent machine failure. A new telematics platform promotes greater data acquisition and faster transmission to locally hosted or cloud-based applications such as Cat MineStar Solutions. Available MineStar Fleet, Detect, and Health Equipment Insights, along with standard haul road analytics, help to improve operator performance, maintenance, and machine life.

Braking and retarding control for the 789 is delivered by Caterpillar's oil-cooled, multiple disc brakes.

Serviceability features of the 789 mining truck

Multiple key contributors to truck downtime have been reduced on the 789. Its new modular HVAC (heating, ventilation, and air conditioning) system improves reliability and consolidates components, so the entire system can be removed and replaced quickly. Shortening engine removal and installation time, the modular radiator enables rebuilds to be completed off the truck to reduce downtime. 

The 789's serviceability incorporates extended-interval filters with ground-level access, grouped service points, and a new centralized service centre option. It features an extended 12,000-hour coolant life and double the hydraulic and transmission filter life to 1,000 hours to reduce service time. New Remote Flash and Remote Troubleshoot features help to improve machine uptime by providing access to the latest software updates and making it possible to remotely troubleshoot the truck.

Braking and retarding control for the 789 is delivered by Caterpillar's oil-cooled, multiple disc brakes. The cab design integrates the rollover protective structure (ROPS), and the operator is protected by five-sided ROPS/FOPS (falling-object protective structure) coverage. Wide-angle mirrors plus a birds-eye view offered by Cat Vision 360 improves visibility in the 789. Part of the MineStar suite of solutions, the available Driver Safety System alerts the operator if fatigue or distraction is detected.

The 789 mining truck replaces the current 789 Stage V/Tier 4 Final model. The popular Cat 789D will continue to be produced and is available to markets outside of North America and Europe.

Company info

100 North East Adams Street
Peoria, IL
US, 61629


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