KOMATSU HD405-8
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Year
2024
Manufacturer
Komastu
Model
HD405-8
Condition
New
Maneuverability even in tight spaces
Known for its maneuverability and tight turning radius, the HD405-8 helps you deliver high productivity and offers impressive durability. A fully automatic K-ATOMiCS transmission with lock-up torque converter, a hydro-pneumatic suspension system and oil-cooled multiple-disc brakes makes this the right choice for a variety of jobs.
- Up to 6% reduction in fuel consumption*
- Increased horsepower by 3.2%*
- Enhanced serviceability*
- Improved operator environment*
*Compared to HD405-7
Engine
| Model | Komatsu SAA6D140E-7* |
| Type | Water-cooled, 4-cycle |
| Aspiration | Variable geometry, turbo-charged, air-to-air after-cooled, cooled Exhaust Gas Recirculation (EGR) |
| Number of cylinders | 6 |
| Bore x stroke | 5.5 x 6.5 in |
| Piston displacement | 930 in3 |
| Horsepower: | |
| SAE J1995 | 518 HP |
| ISO 9249 /SAE J1349 | 514 HP |
| Rated rpm | 2,000 rpm |
| Fan drive type | Hydraulic |
| Maximum torque | 1600 Ibs.-ft. |
| Fuel system | Direct injection |
| Governor | Electronically controlled |
| Lubrication system: | |
| Method | Gear pump, force-Iubric |
| Filter | Full-flow type |
| Air cleaner | Dry type with double elements and precleaner, plus dust indicator |
*EPA Tier 4 Final emissions certified
Transmission
| Torque converter | Three-elements, one-stage, two-phase |
| Transmission | Full-automatic, planetary type |
| Speed range | Seven speeds forward and one reverse |
| Lockup clutch | Wet, single-disk clutch |
| Forward | Torque converter drive in 1st gear, direct drive in 1st lockup and all higher gears |
| Reverse | Torque converter drive |
| Shift control | Electronic shift control with automatic clutch modulation in all gears |
| Maximum travel speed | 41.0 mph |
Axles
| Rear axle | Full-floating |
| Final drive | Planetary gear |
| Ratios: | |
| Differential | 3.125 |
| Planetary | 5.211 |
Suspension System
Independent, hydropneumatic suspension cylinder with fixed throttle to dampen vibration
| Effective cylinder stroke (front suspension) | 9.8 in |
| Rear axle oscillation: | |
| Oil stopper | 6.8° |
| Mechanical stopper | 8.1° |
Steering System
| Type | Fully hydraulic power steering with two double-acting cylinder |
| Supplementary steering | Automatic/manual control (meets ISO 5010, SAE J1511 and SAE J53) |
| Minimum turning radius | 25 ft. 11 in |
| Maximum steering angle | 38° |
Cab
Dimensions comply with ISO 3471 and SAE J1040-1988c ROPS (Roll-Over Protective Structure) standards.
Brakes
Brakes meet ISO 3450 and SAE 1473 standards
| Service brakes: | |
| Front | Dry type, single disc type full hydraulic |
| Rear | Wet type, multiple disc type, full hydraulic |
| Parking brake | Dry type, single disc type, spring operated, hydraulic releasing type |
| Retarder | Oil-cooled, multiple-disc type |
| Secondary brake | Manual pedal operation When hydraulic pressure drops below the rated level, parking brake is automatically actuated |
| Brake surface: | |
| Front | 150 in2 |
| Rear | 7,881 in2 |
Main Frame
Type
Box-sectioned structure
Body
| Capacity: | |
| Struck | 26.2 yd3 |
| Heaped (2:1, SAE) | 35.7 yd3 |
| Payload | 44.1 US tons |
| Material (high tensile strength steel) | 227,520 psi |
| Structure | V-shape body |
| Material thickness: | |
| Bottom | 0.75 in |
| Front | 0.63 in |
| Sides | 0.55 in |
| Target area (inside length x width) | 18 ft. 6 in x 11 ft. 1 in |
| Dumping angle | 48° |
| Height at full dump | 26 ft. 7 in |
| Heating | Exhaust heating |
Hydraulic System
| Hoist cylinder | Twin, 2-stage telescopic type |
| Relief pressure | 2,990 psi |
| Hoist time | 10 s |
Weight (approximate)
| Empty weight | 82,310 lbs. |
| Max. gross vehicle weight: | |
| Standard tire | 170,671 lbs. |
| Not to exceed max. gross vehicle weight, including options, fuel and payload |
|
| Weight distribution: | |
| Empty: | |
| Front axle | 54.2% |
| Rear axles | 45.8% |
| Loaded: | |
| Front axle | 32.9% |
| Rear axles | 67.1% |
Tires
Standard tire: 21.00 R33
Service Refill Capacities
| Fuel tank | 120.5 US gal |
| DEF tank | 9.2 US gal |
| Engine oil | 13.2 US gal |
| Torque converter, transmission and retarder cooling | 29.6 US gal |
| Differential | 11.9 US gal |
| Final drive (left and right) | 7.9 US gal |
| Hydraulic system | 31.7 US gal |
| Suspension (total) | 11.7 US gal |
ENGINE:
- Air cleaner, dry type, two stage
- Automatic Idling Setting System (AISS)
- Auto Idle Shutdown
- Electric priming fuel pump
- Engine secondary stop switch
- Engine, Komatsu SAA6D140E-7, six cylinder, turbocharged, air/air aftercooled, EGR cooled, diesel; Gross HP (SAE J1995): 518 HP / 2000 RPM; Net HP (ISO
- 9249/SAE J1349): 514 HP / 2000 RPM
- Fan, hydraulically driven, reversible
- Komatsu Diesel Particulate Filter (KDPF)
- Starting aid, intake manifold pre-heater
- Variable geometry turbocharger
ELECTRICAL SYSTEM:
- Alternator, 140 ampere , 24 volt
- Back-up alarm
- Batteries, 2 x 12 volt 160 Ah, 910 CCA
- Battery disconnect switch
- Horn, electric
- Lights
- Back-up light, rear
- Engine compartment light
- Head lights, halogen (high and low beam)
- Side working lights, LH and RH
- Stop and tail lights (LED)
- Turn signal, (two front, two rear)(LED) with hazard switch - Starting motors, 11.0 kW direct electric 24V
POWER TRAIN AND CONTROLS:
- Seven-speed transmission, fully automatic with K-ATOMiCS
- Komatsu Traction Control System (KTCS)
- Front brake, dry type, single disc type, full hydraulic
- Parking brake, dry type, single disc type, spring operated, hydraulic releasing type
- Rear brake, Wet type, multiple disc type, full hydraulic
- Skip shift function
OPERATOR ENVIRONMENT:
- Cab, with built in ROPS/FOPS
- 12 Volt outlet (qty two)
- Automatic climate control system with cab pressurization
- Auxiliary steering system
- Beverage holder (qty two)
- Body hoist control, electric
- Cigarette lighter and ashtray
- Dome light and reading light
- Door, LH and RH
- Lunch box tray and storage trays
- Machine monitor with seven-inch color LCD display
- Operator seat, air suspension type, heated, ventilated, with three-point retractable seat belt 3" wide lap belt and 2" wide, high visibility shoulder belt)
- Power windows, LH and RH
- Radio, AM/FM with aux terminal
- Rearview mirror, outside cab mount, heated (LH & RH)
- Rearview monitoring system with dedicated monitor
- Steering wheel, tilt and telescopic
- Sun visor (qty two)
- Tinted glass (front, laminated glass)
- Trainer seat, folding, with two-point retractable seat belt (3" wide)
- Wiper/washer, front, with intermittent setting
GUARD AND COVER GROUP:
- Catwalk with handrails
- Deck rail
- Driveline guards, front & rear
- Engine underguard
- Exhaust thermal guard
- Front handrail, over radiator
- Mudguards
- Transmission underguard
MONITORING SYSTEM, ELECTRONIC DISPLAY ITEMS:
- Instrument panel gauges
- Coolant temperature
- Hour meter (Service meter)
- Retarder oil temperature
- Speedometer with odometer
- Tachometer
- Torque converter oil temperature - Warning lights
- DEF level
- Engine coolant temperature
- Engine coolant level
- Engine oil pressure
- Parking brake
- Retarder oil temperature
- Torque converter oil temperature
OTHER:
- Angled front stairs with hand rails
- Automatic retarder speed control (ARSC)
- Centralized lube block
- Dump counter
- Ecology guidance and ecology gauge
- Fast-fill coupler for fuel tank
- Filler cap and cover locks
- Front brake cut-off system
- Hydropneumatic suspension (front & rear)
- Less body (must select body)
- Mirror, rearview, underview
- PM Service connectors
- Rock ejector bars
- KOMTRAX® telematics package with integrated payload meter (PLM)
- Wheel chocks with storage brackets
BODY:
- Alternative exhaust configuration (RH side discharge)
- Body
- Body liner
TIRES (21.00 R33):
- Michelin XHAUL
- Michelin X-Traction
- Bridgestone VMTP
SUPPORT YOU CAN COUNT ON
FINANCING
Financing can be a major advantage for your operation, enabling you to get the equipment and service you need with terms to fit your business needs. Take advantage of competitive and flexible financial tools with Komatsu Financial.
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WARRANTY PROGRAMS
Experience the peace of mind that comes with Komatsu’s warranty. Komatsu offers a standard warranty on all machines — plus extended coverage options that help extend the life of your investment.