Komatsu HM400 Articulated Dump Truck
Information
Additional information
| Make | |
|---|---|
| Model | HM400, HM400-2, HM400-3M0 |
| Weight | 35 t |
| Capacity | 40 t |
Equipment Overview
The Komatsu HM400 is an articulated dump truck built for off-road hauling across broken, uneven ground, the larger partner to Komatsu’s HM300 in the HM range. It carries a 40-tonne rated payload and a 24 m³ heaped body, producing 353 kW of gross power, suited to mining support, quarrying, and large-scale civil earthworks where a rigid-frame truck would struggle with traction or ground clearance.
Power comes from a Komatsu SAA6D140E-7 engine meeting EPA Tier 4 Final emission standards, rated at 353 kW (473 hp) at 2,000 rpm. The K-ATOMiCS transmission is a six-speed fully automatic unit driving all six wheels, with the Komatsu Traction Control System managing wheel slip on soft or slippery ground. Front and rear hydro-pneumatic suspension smooths the ride over rough terrain, and wet multiple-disc brakes double as a retarder rated at 684 hp of absorption capacity for controlled descents.
Technical Specifications
| Specification | Value |
|---|---|
| Engine | Komatsu SAA6D140E-7 |
| Gross Power | 353 kW (473 hp) @ 2,000 rpm |
| Net Power | NA |
| Max Torque | NA |
| Emission Standard | EPA Tier 4 Final |
| Transmission | K-ATOMiCS, auto-shift 6-speed |
| Drive Type | Six-wheel drive (6×6) |
| Operating Weight (Empty) | 35,135 kg |
| Gross Weight (Loaded) | 75,135 kg |
| Rated Payload | 40,000 kg (44.1 US ton) |
| Body Capacity (Heaped, SAE 2:1) | 24 m³ |
Dimensions
| Dimension | Value |
|---|---|
| Overall Length | 11,105 mm |
| Overall Width | 3,450 mm |
| Overall Height | 3,845 mm |
| Turning Radius (Wall-to-Wall) | 8,790 mm |
Typical Applications
- Mine site overburden and support haulage
- Quarry face-to-crusher haulage
- Bulk earthworks on large-scale civil projects
- Bulk material transfer on uneven or soft ground
