Komatsu HM460-6 vs. Hyundai HA45: Two 45-Ton-Class Articulated Haul Trucks Compared

Komatsu's HM460-6 and Hyundai's HA45 both sit in roughly the same 45-46 ton payload class of articulated dump truck, and both are relatively recent additions to their respective lineups aimed squarely at aggregate haul, mass earthwork, and mining-support contractors who need a truck that can run rough haul roads all day without babying it. They arrived at similar specs from different design philosophies, and the differences are worth understanding before you commit a fleet purchase to either one.

The Core Numbers

Komatsu's HM460-6 carries a 46.3-ton payload behind a new DBA127 engine rated at 518 gross hp at 1,700 rpm, running a two-stage turbocharger and a nine-speed Komatsu transmission with intelligent gear control. Hyundai's HA45 carries a slightly lower 45.2-ton payload (90,390 lbs) behind a Scania DC13 engine rated at 489 hp at 2,100 rpm, with a heaped capacity of 34.01 cubic yards, an operating weight of 66,359 lbs, and a top speed of 34.2 mph. On raw horsepower and payload, the HM460-6 has a modest edge — about 29 more horsepower and roughly a ton more payload capacity — while the HA45 is the lighter of the two trucks by a meaningful margin at 66,359 lbs versus Komatsu's heavier overall package, which typically means less dead weight to haul on every empty return trip.

What Komatsu Changed From the HM400-5

The HM460-6 directly replaces the HM400-5, and the upgrade is a genuine one rather than a badge change. Payload grew from 44.2 tons to 46.3 tons, and Komatsu redesigned the drivetrain around the new DBA127 engine with increased low-end torque for better acceleration and hill-climb performance, while eliminating the EGR system entirely for a simplified, more fuel-efficient design with longer service intervals. The operator environment saw real attention too: cab glass area increased 16 percent and blind spots were cut 43 percent, both meaningful safety improvements on a machine that's constantly maneuvering around loading equipment and other haul trucks on an active site. New technology includes a Komatsu Traction Control System with cross-axle differential locks, a hydro-pneumatic suspension system, a four-pillar cab design, an 8-inch machine monitor paired with a 10-inch sub-monitor, telematics data monitoring, a rollover prevention system, and hill start assist with cruise control. For the full story on the outgoing HM400-5 against a different competitor, see our comparison of the Komatsu HM400-5 against the CAT 745.

Hyundai's Approach: Scania Power and a Next-Generation Cab

Hyundai took a different path with the HA45, sourcing its power from a Scania DC13 engine rather than building an in-house unit — a strategy Hyundai has leaned on across multiple recent product lines to get a proven, well-supported engine platform into the truck quickly. Hyundai has also been actively rolling out what it calls a next-generation operator experience across both the HA30 and HA45, focused on cab ergonomics, visibility, and control layout updates. The HA45's lighter overall operating weight relative to its payload capacity gives it a favorable payload-to-weight ratio, which can translate into better fuel efficiency per ton hauled on level, well-maintained haul roads, though the advantage narrows on rougher terrain where the HM460-6's traction control and hydro-pneumatic suspension start to matter more.

Matching Either Truck to Real Work

Both trucks are built for the same general customer: aggregate and quarry haul operations, mass grading and site-development contractors moving large volumes of cut-and-fill material, mining-support haul work, and large-scale road-building projects where a rigid-frame truck can't handle the terrain. The HM460-6's traction control, cross-axle diff locks, and hydro-pneumatic suspension give it a real edge on rough, wet, or steep haul roads — exactly the conditions common on active earthwork sites before roads get built out and compacted. The HA45's lighter frame and Scania powertrain make it a strong option for operations running more established haul routes where raw traction matters less than payload-per-trip efficiency. Contractors running a mixed fleet across both truck classes may find it useful to also review our 30-ton articulated dump truck shootout comparing the Hyundai HA30, CAT 730, and Komatsu HM300-5 for how the same two brands stack up one size class down.

Total Cost of Ownership: Beyond the Spec Sheet

A 45-ton-class haul truck lives or dies on uptime, since a single truck out of service on a haul-heavy job directly reduces daily production. Komatsu's decision to eliminate the EGR system on the HM460-6 is specifically aimed at reducing complexity and unscheduled downtime, while its telematics package gives fleet managers visibility into fault codes before a breakdown happens. Hyundai's Scania engine benefits from that engine platform's own established parts and service ecosystem, which matters most in regions with strong Scania-experienced diesel technicians. For most Florida and Southeast fleets, dealer proximity and existing brand relationships will end up mattering as much as any single spec difference between these two trucks.

Rent vs. Own for a Haul Fleet

A truck this size is rarely a rental-yard commodity the way a skid steer or mini excavator is — availability is limited, rental rates are correspondingly high, and a contractor running continuous haul work on an active earthwork or aggregate job is almost always better served owning the truck outright rather than renting it job by job. Every week spent renting a machine this expensive is real money that never builds equity, and on a haul-intensive project, downtime waiting for a rental truck to become available can stall an entire crew of loading equipment sitting idle behind it. For a fleet that's scaling to handle a genuinely bigger project pipeline, owning two or three trucks financed together often works out more favorably than piecing together rentals on an as-needed basis.

Financing a Haul Truck This Size

A machine in the HM460-6 or HA45's price class is a serious capital investment, and structured financing is how most aggregate, mining-support, and grading contractors actually acquire this class of equipment rather than paying cash outright. Deposit expectations vary with the applicant's credit profile and business history — an established hauling operation with strong equipment history can sometimes structure a deal with a modest down payment, while a newer operation or one adding its first truck this size should plan on a deposit in a higher range, confirmed during underwriting rather than assumed up front. BFC structures deals around where a business stands today, including operations still paying off existing equipment that need additional haul capacity to take on more work. For a broader look at dump truck financing options, visit our dump truck business loans page for Florida contractors.

Florida's Haul Truck Demand

Florida's aggregate producers, road contractors, and large-scale site developers run articulated haul trucks like the HM460-6 and HA45 constantly across a construction pipeline that rarely slows down, and the state's sandy, often waterlogged terrain on greenfield sites puts real value on the HM460-6's traction control and hydro-pneumatic suspension specifically. For a South Florida or statewide hauling operation weighing a fleet expansion, excavator financing, equipment leasing, and construction equipment loans sized appropriately to a 45-ton-class haul truck are worth pricing out well before the next big project bid rather than after, since lead times on new trucks can run months.

The Bottom Line

The HM460-6 and HA45 are close enough in payload and power that either one will move material effectively for most hauling operations. The Komatsu's traction and suspension package makes a stronger case on rough or unimproved haul roads, while the Hyundai's lighter weight and Scania powertrain make a stronger case for efficiency on established routes. The right call ultimately depends on the terrain your trucks actually run, the dealer support available in your region, and whether an existing fleet relationship with either brand already tips the scale.

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