Komatsu HM460-6

Description

The Komatsu HM460-6 is an articulated dump truck in the 42-tonne class, built for hauling soil and blasted rock on large construction sites, in quarries and in open-pit operations. The designation HM460 refers to Komatsu’s HM460 series of articulated dump trucks, where -6 indicates the model generation.

The rated payload is 42 tonnes, and the body holds 25.7 m³ heaped (SAE 2:1) and 18.9 m³ struck. With a tailgate (option), the capacity is 26.8 m³. Empty weight is approx. 32,900 kg and gross vehicle weight approx. 74,900 kg, with a maximum travel speed of 53.5 km/h. See the full specifications on the supplier’s product page, and browse more machines in Hesselberg’s dump truck category.

The truck is powered by a Komatsu DBA127, a 6-cylinder common rail diesel engine of 12.74 litres with a two-stage turbocharger system. It delivers 386 kW (518 hp) at 1,700 rpm (gross, ISO 14396), or 385 kW (516 hp) net (ISO 9249), with a maximum torque of 2,803 Nm. It complies with EU Stage V using a diesel particulate filter (KDPF) and an SCR system with AdBlue, and according to Komatsu the engine can run on paraffinic fuel (HVO, GTL, BTL) in accordance with EN 15940:2016. The transmission is a fully automatic planetary type with 9 forward and 2 reverse speeds and a new smart gear control which, according to Komatsu, takes both payload and road-surface conditions into account when selecting gears. The starting gear is selected automatically between 1st and 3rd, and the skip-shift function avoids unnecessary downshifting uphill. Komatsu states that the HM460-6 has up to 12% lower fuel consumption and up to 22% higher fuel efficiency than the HM400-5, depending on the work.

The HM460-6 has six-wheel drive with the Komatsu Traction Control System (KTCS) and a 100% differential lock: when the operator presses the differential lock pedal, the cross-axle and inter-axle differentials are locked simultaneously. The brakes are full-hydraulic, oil-cooled multiple-disc brakes on the front and centre axles, which also act as the retarder. Auto Retard Speed Control (ARSC) lets the operator set the downhill speed separately for loaded and empty conditions, and cruise control, hill start assist and a waiting brake (which holds the machine automatically when stationary in neutral) are standard. The frames are built from high-strength materials in a box-section design, and the body uses 450 HB-class wear-resistant steel. Komatsu states that body capacity is 7% larger and payload 5% larger than on the HM400-5. The machine articulates 45° in each direction and has a minimum turning radius (wall to wall) of 8.95 m. Standard tyres are 29.5 R25, and 875/65 R29 is available as an option. Body exhaust heating is standard.

The cab is new and larger, with a centrally positioned operator seat. Komatsu states a 16% greater glass area and 43% fewer blind spots than the HM400-5. It complies with ROPS to ISO 3471 and FOPS to ISO 3449 level II, and the noise level at the operator’s ear is 72 dB(A) (ISO 6396). The operator seat is air-suspended, and the cab has a sealed, pressurised cabin, air conditioning, a trainer seat, a retractable steering column, an 8-inch machine monitor, a 10-inch touchscreen rear-view monitor and a DAB+ radio with Bluetooth. Keyless start with operator ID stores each operator’s settings. Semi-auto dumping, dump angle limitation, dump lights, a speed limiter, overload warning and speed limiting, a rollover prevention system, machine inclination monitoring, a seat belt reminder with a green external lamp and full LED lighting are standard.

For maintenance, the HM460-6 has an electrically tilting cab and engine hood, and Komatsu states service intervals of 1,000 hours for engine oil and filters, 4,000 hours for hydraulic oil filters and 8,000 hours for particulate filter cleaning. Oil and coolant sampling ports are grouped on the left side, and the AdBlue tank is positioned for ground-level refilling. The radiators are cleaned with reversible fans, and the batteries are maintenance-free. A payload meter (PLM) and Komtrax Plus, Komatsu’s wireless monitoring system, are standard, and Smart Construction Fleet and Smart Quarry Site are available as options.

The HM460-6 is a newer and larger alternative to the HM400-5 (353 kW / 473 hp, 40 t payload). If you need something smaller, take a look at the HM300-5 (248 kW / 332 hp, 28 t payload).

As a Komatsu supplier in Norway, Hesselberg helps you with machine selection, service and parts. Contact us for a no-obligation quote on the HM460-6.