Cat 789D Off-Highway Truck Specifications
Dumpers Specs
The Cat 789D Off-Highway Truck is an industry-standard rigid frame dump truck engineered specifically for high-production mining and large-scale earthmoving applications. Renowned for its reliability, durability, and low cost per tonne, this mechanical-drive truck delivers exceptional performance across demanding Australian mining environments. With its robust chassis design and advanced power train, the 789D ensures continuous operation and high mechanical availability in the toughest conditions.
Equipped with a powerful Cat 3516C HD engine, the 789D offers superior speed on grade and fuel efficiency, making it a preferred choice for deep pit mines and heavy haulage operations. The spacious, ergonomic cab is designed to maximise operator safety and comfort, featuring intuitive controls and excellent visibility. Whether deployed in coal, iron ore, or gold mining sectors, the Cat 789D remains a cornerstone of productive and cost-effective material haulage.
Details
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Machinery Specifications
Technical Specification
| Specification | Value |
|---|---|
| Nominal Payload Capacity | 181 t |
| Gross Machine Operating Weight (GMW) | 324,319 kg |
| Top Speed – Loaded | 54.3 km/h |
| Body Capacity – SAE 2:1 | 130 m³ |
| Steering Angle | 36 degrees |
| Turning Diameter – Front | 27.5 m |
| Raise Time | 18.9 seconds |
| Lower Time | 17.3 seconds |
| Overall Length | 12,190 mm |
| Overall Width | 7,670 mm |
| Overall Height (Empty) | 6,425 mm |
Engine Specification
| Specification | Value |
|---|---|
| Engine Model | Cat 3516C HD |
| Gross Power | 1,568 kW (2,100 hp) |
| Net Power | 1,468 kW (1,968 hp) |
| Displacement | 78.1 L |
| Number of Cylinders | 16 |
| Fuel Tank Capacity | 3,785 L |
| Emissions | U.S. EPA Tier 2 equivalent |
Additional Information
The Cat 789D features a mechanical drive power train that delivers unmatched power transfer and control on steep grades and poor underfoot conditions. Its unique design integrates a torque converter with lock-up clutch and a six-speed planetary power shift transmission, ensuring smooth shifting and constant power delivery. Additionally, the advanced braking system, incorporating oil-cooled multiple disc brakes, provides exceptional retarding capability and fade-resistant stopping power, significantly enhancing operator confidence and site safety in deep pit operations.
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