Caterpillar, aka CAT, has delivered its newest 789 next-generation Mining Truck that provides operators with class-leading power and fuel efficiency, more payload capacity, and better speed on grade for the lowest cost per ton.
The new CAT 789 mining truck replaces the current 789 Stage V/Tier 4 Final model, while the CAT 789D will continue to be produced for markets outside North America and Europe.
Per CAT, the new 789 Mining Truck builds upon a legacy of proven performance to offer efficiency gains, the next generation of cab comfort, and innovative connectivity. Its design offers a weight advantage over the competition to haul more material every load and deliver a cost-per-ton advantage. A proven performer, high uptime reliability reduces overall costs to deliver a better bottom line.
The new 789 can move more material using less fuel, supplying up to nine percent reduced fuel consumption compared to the Tier 2 design.
An advanced powertrain increases engine life by 12 percent and offers better shifting and acceleration.
With the highest horsepower in its class, the 789 mining truck features 10 percent more payload delivery and is over five percent faster on grade than competitive trucks.
Power & Strength
With its flexible design, the CAT 3516E engine powering the new 789 is fuel-optimized for lesser regulated countries or can be configured with selective catalytic reduction (SCR) for meeting EU Stage V and US EPA Tier 4 Final standards. Two power selections offer 1,417 kW (1,900 horsepower) to match the performance of existing fleet trucks or 1 566 kW (2,100 horsepower) for faster cycle times.
With long-life reliability, the new engine features design modifications to the camshaft and piston for optimal fuel efficiency, and structural improvements to the cylinder head and crankshaft deliver 12 percent more durability than the earlier 3516C.
The engine’s 23 percent net torque rise delivers unequaled lugging force during acceleration, on steep grades, and in rough underfoot conditions.
Offering smoother transitional shifting for a smoother ride, 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 kept while shifting with optimum 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.
Style + Productivity
A choice of multiple body style configurations allows mines to equip the 789 to meet specific site needs. The high-performance body maximizes payload by reducing the weight by 2.0 to 5.0 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 excellent load retention, and the X Body features the latest structural designs and offers more volume at a lower weight.
The vehicle’s larger, more ergonomic cab improves operator efficiency and productivity.
At 17 percent wider, the cab’s walk-through design with a fully adjustable center console offers 34 percent more operator space, 11 percent more legroom, and 19 percent more shoulder room.
It also features 40 percent less sound pressure level for a quieter cab and includes automated temperature control and cab filtration for a more comfortable environment.
Two ideally located 254-mm (10-inch) screens combine all machine data, controls and guidance information, and applications like Cat MineStar to reduce the number of required displays.
New speed coaching supplies operators real-time feedback on truck operation to maximize productivity, while more accurate measurements on the payload monitoring system deliver improved load tracking.
Its 360-degree surround view camera with object detection to alert operators to hazards within the immediate vicinity makes it easier to safely run the 789.
There is also a new optional Auto Hoist feature that automatically raises the body and controls engine speed.
Cutting-edge Connectivity
Fully integrated electronics on the 789 include 100 Mbps, two-wire ethernet connectivity for faster data transfer to improve access to information.
The future-proof technology platform includes every 789 factory-equipped with CAT Product Link Elite with standard connectivity via cellular 4G/LTE and available cellular/satellite radio for dependable data transfer.
This ability to access and analyze accurate, real-time data enables faster diagnostics and enhances the machine’s ability to predict and prevent machine failure, improving truck uptime availability.
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.
Service & Safety
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 next-gen enhanced serviceability incorporates extended-interval filters with ground-level access, grouped service points, and a new centralized service center option. It features an extended 12,000-hour coolant life and doubles the hydraulic and transmission filter life to 1,000 hours to reduce service time.
A new Remote Flash and Remote Troubleshoot will further improve machine uptime and performance by instantly supplying access to the latest software updates and making it possible to remotely troubleshoot the truck.
Superior braking and retarding control for the 789 is delivered by Caterpillar’s patented, oil-cooled, multiple disc brakes to supply immediate, fade-resistant braking and retarding.
Other safety features include the next-gen cab design, which integrates the rollover protective structure (ROPS), and operator protection via the five-sided ROPS/FOPS (falling-object protective structure) coverage.
Wide-angle mirrors and a birds-eye view from Cat Vision 360 improves operator vision in the 789. Part of the MineStar suite of solutions, the available Driver Safety System alerts the operator if fatigue or distraction is detected.
For more information, visit www.cat.com.