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Cat New 789 Mining Truck Launched

Caterpillar's new 789 mining truck is based on performance and efficiency. Compared with the secondary design, it transports more materials and reduces fuel consumption by 9%. According to Cat, the truck provides the highest horsepower among similar vehicles, with a 10% increase in payload and more than 5% faster than other trucks on the ramp.

In addition to speed and payload capacity, the 789 has a new cab and improved connectivity. According to Cat, the design has greater weight advantages over competitors, can transport more materials per load, and has cost advantages per ton.

The next generation of 789 mining truck replaces the current 789 model.

Flexible power

The Cat 3516E engine that powers the 789 meets the Tier 4 Final standard through selective catalytic reduction. Two power options provide 1900 horsepower to match the performance of existing fleet trucks, or 2100 horsepower to speed up cycle times.

The camshaft and piston of the new engine are designed to improve fuel efficiency. In addition, the structural improvement of cylinder head and crankshaft makes its durability 12% higher than 3516C. Cat states that a 23 percent increase in the net torque of the engine produces traction when accelerating, on steep slopes, and on rough terrain.

The Advanced Power Electronic Control Strategy (APECS) transmission provides smoother transition shifts and helps to reduce cycle time. While shifting at the best gear, maintain forward momentum and torque to accelerate acceleration. It provides more continuous torque and traction, providing more power to the ground, so that higher gears can be used on slopes to optimize fuel efficiency.

Cat stated that the new 789 truck has a variety of body style configurations to meet specific field needs. The high-performance body maximizes the payload by reducing the weight by 2.2 to 5.5 tons or more. Specific ore bodies perform well in mature mines, while combined ore bodies combine the characteristics of high capacity and optional lining to transport ore and topsoil simultaneously. The original standard double slope body provided excellent load retention, while the X body adopted the latest structural design, providing a larger volume with lower weight.

Creature comforts

This version of the 789 has a larger, more ergonomic next-generation cab. Cat said that the cab is 17% wide, and its walkthrough design has a fully adjustable center console, which can provide 34% operating space, 11% leg space and 19% shoulder space. In addition, the company said that it was a quiet cab with a 40% reduction in sound pressure level. For comfort, the cab includes temperature control and cab filtration

Two 10 inch screens integrate all machine data, control and guidance information, and applications. New speed guidance provides operators with real-time feedback on truck operations to help improve productivity, while more accurate measurements of the payload monitoring system improve load tracking. The optional automatic lifting function automatically raises the body and controls the engine speed.

Optimized maintainability

The fully integrated Cat electronics on the 789 include a 100 Mbps two-wire Ethernet connection that transfers data faster to improve information access. The platform includes each 789 equipped with Cat Product Link Elite at the factory, which is connected to available cellular/satellite radios through cellular 4G/LTE as standard to achieve reliable data transmission. A new telematics platform facilitates greater data collection and faster transfer to locally hosted or Cat cloud based applications

Several factors on the new 789 are designed to reduce downtime. Its new modular HVAC system improves reliability and integrates components, so the entire system can be quickly disassembled and replaced. The modular radiator shortens the engine removal and installation time, enabling the retrofit to be completed on trucks.

Cat stated that the 789's next-generation enhanced service capabilities combine extended interval filters with ground access, packet service points, and new centralized service center options. The coolant life of the truck has been extended by 12000 hours, and the hydraulic and transmission filter life has been doubled to 1000 hours, thus reducing maintenance time.

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