Komatsu unveils next-gen HM460-6 articulated haul truck at CONEXPO 2026

New truck engineered for higher payload, improved fuel efficiency, and enhanced traction control across challenging terrain

Published on Mar. 4, 2026

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Komatsu has introduced the HM460-6 articulated haul truck, a next-generation articulated dump truck designed to help contractors move more material with greater consistency across challenging ground conditions, at CONEXPO-CON/AGG 2026 in Las Vegas. The HM460-6 features a new high-output powertrain, advanced traction control system, and redesigned operator environment based on direct customer feedback.

Why it matters

The HM460-6 is engineered for quarry, construction, mining, and infrastructure operations where variable terrain, soft ground, and haul road conditions limit productivity. The truck's increased payload capacity and improved fuel efficiency aim to deliver a lower cost per tonne while maintaining stable, predictable operation throughout the haul cycle.

The details

The HM460-6 has a higher rated payload capacity of up to 46.3 tons, or 42 tonnes, compared to the 44.2-ton (40.1 t) capacity of the previous HM400-5 model. It is powered by Komatsu's new proprietary DBA127 engine with a two-stage turbocharger system, delivering 518 gross horsepower (386 kW) at 1,700 rpm. The engine is paired with a new nine-speed Komatsu transmission and intelligent gear control. The truck also features the Komatsu Traction Control System, cross-axle differential locks, and a hydro-pneumatic suspension system to maintain traction and stability on soft, uneven, or muddy ground. The redesigned cab offers improved visibility, ergonomics, and operator comfort.

  • Komatsu introduced the HM460-6 at CONEXPO-CON/AGG 2026 in Las Vegas, which took place from March 3-7, 2026.

The players

Komatsu

A Japanese multinational corporation that manufactures construction, mining, and military equipment.

Bruce Boebel

Director of Products and Service at Komatsu.

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What they’re saying

“In engineering the HM460-6, the focus is on delivering confident performance in real-world conditions where traction, torque and control make the difference – with extra payload. The new DBA127 engine and advanced traction systems were designed to help operators stay productive on challenging and versatile terrain, while the redesigned cab and service features reflect how closely we listened to customer feedback.”

— Bruce Boebel, Director, Products and Service (im-mining.com)

What’s next

Komatsu's Komatsu Smart Quarry Autonomous, powered by Pronto, has been named a finalist for the CONEXPO-CON/AGG Next Level Awards, which will be determined by votes cast during the show from March 3-7, 2026.

The takeaway

Komatsu's new HM460-6 articulated haul truck is engineered to boost productivity and efficiency in challenging construction, mining, and infrastructure applications through increased payload capacity, improved fuel economy, and advanced traction control systems - demonstrating the company's commitment to delivering innovative solutions based on direct customer feedback.