The Komatsu HD785-8 is a robust and high-performance rigid dump truck designed for demanding mining and quarry applications. Packed with innovative features, impressive fuel efficiency, and advanced safety systems, this truck is built to maximize productivity while ensuring operator comfort and reliability.
Key Specifications
- Engine: Komatsu SAA12V140E-7, delivering 1,200 HP at 1,900 rpm
- Operating Weight: 365,967 lbs
- Payload Capacity: 101.6 U.S. tons
- Dump Body Capacity: 78.5 yd³ (V-shape design for optimized material retention)
- Turning Radius: 33'2", thanks to the MacPherson-strut-type independent suspension
- Maximum Speed: 65 km/h
Engine Performance & Fuel Efficiency
The Komatsu SAA12V140E-7 engine is engineered for exceptional speed-on-grade, ensuring efficient hauling even in steep terrains. The Variable Horsepower Control System automatically adjusts power output based on load conditions, optimizing fuel consumption without compromising performance Additionally, the Auto Idle Shutdown feature prevents unnecessary fuel usage by shutting down the engine when idle for a set duration
Advanced Safety Features
Safety is a priority in the HD785-8, with multiple systems designed to enhance operator confidence:
- Wet Disc Brakes on All Four Wheels: Provides 1,770 HP of retarder-absorption capacity, ensuring reliable braking performance
- Komatsu Traction Control System (KTCS): Monitors wheel slippage and applies independent braking to maintain traction
- Automatic Retard Speed Control (ARSC): Allows operators to set downhill travel speed, preventing excessive acceleration
- KomVision All-Round View System: Uses six high-definition cameras to eliminate blind spots and enhance visibility
Advantages & Potential Drawbacks
Advantages
✅ High Payload Capacity: Ideal for large-scale mining and quarry operations.
✅ Fuel Efficiency Features: Helps reduce operational costs.
✅ Advanced Safety Systems: Enhances operator confidence and minimizes risks.
✅ Comfortable Cabin: Spacious design with an air-suspended seat for reduced fatigue
Potential Drawbacks
❌ Large Size: Requires ample space for maneuvering.
❌ High Initial Investment: Premium features come at a cost.
❌ Complex Maintenance: Advanced systems may require specialized servicing.