Komatsu HM400-5
Komatsu’s 40-tonne ADT with KTCS traction control
The Komatsu HM400-5 is a 40-tonne articulated dump truck with Komatsu’s traction control system, automatic retarder and a comfortable, quiet cab.
Photo: Alexandre Prevot from Nancy, France, CC BY-SA 2.0 · license
+Strengths
- Komatsu Traction Control System for poor ground
- Automatic retarder speed control
- KOMTRAX telematics
−Watch-outs
- Smaller dealer presence in ADTs than Volvo and Cat in some regions
Overview
The Komatsu HM400-5 is Komatsu's 40-tonne articulated dump truck. Komatsu has built ADTs since acquiring designs from Moxy and other makers and has steadily refined them.
Features
The Komatsu Traction Control System (KTCS) automatically applies brakes to individual wheels to prevent slip, while the inter-axle differential lock engages automatically. Automatic retarder speed control lets the operator set a downhill speed. Payload meters and KOMTRAX help monitor productivity.
Who it suits
Contractors who want a strong 40-tonne ADT and already rely on Komatsu dealer support.
Komatsu HM400-5 specifications
| Rated payload | ≈40,000 kg (44 US tons) |
|---|---|
| Net power | ≈350 kW (469 hp) |
| Body volume (heaped) | ≈24 m³ (31.4 yd³) |
| Engine | Komatsu SAA6D140E |
| Drive | 6×6 with KTCS |
Figures are typical for standard configurations as published by Komatsu. Values vary by market, emissions tier, attachments and options; confirm with your dealer before purchase, transport or lifting.
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