Introducing the HD405-8, a mechanical haul truck renowned for its exceptional maneuverability and tight turning radius. This robust machine is designed to enhance productivity and durability, featuring a fully automatic K-ATOMiCS transmission with lock-up torque converter, a hydro-pneumatic suspension system, and oil-cooled multiple-disc brakes, making it an ideal choice for diverse job requirements.
Key specifications:
- Up to 6% reduction in fuel consumption*, promoting efficiency and environmental sustainability.
- Increased horsepower by 3.2%*, providing enhanced power for improved performance.
- Enhanced serviceability*, streamlining maintenance processes for increased efficiency.
- Improved operator environment*, prioritizing comfort and usability for those operating the machine.
*Compared to HD405-7 model.
ProductFeatures and benefits:
MacPherson-Strut-Type Suspension for a Smooth Ride: Experience comfort even on uneven roads with our MacPherson-strut-type independent front suspension. This innovative design allows the front wheels to smoothly follow uneven road surfaces, providing operators with a comfortable and stable ride.
Fully Hydraulic Wet Multiple-Disc Brakes for Confidence at High Speeds: Gain confidence at higher downhill speeds with our fully hydraulic wet multiple-disc brakes. Continuously oil-cooled, these brakes function as a highly responsive retarder, ensuring added reliability and stable brake performance during descents.
Automatic Retard Speed Control for Steering Focus: Allow your operators to concentrate more on steering by utilizing the automatic retard speed control feature. Set downhill travel speed at increments of 0.6 mph to match the optimum slope speed. The system automatically lowers travel speed if the oil temperature reaches a set limit.
K-ATOMiCS Transmission for Efficiency and Smooth Operation: The Komatsu Advanced Transmission with Optimum Modulation Control System (K-ATOMiCS) minimizes fuel consumption, reduces material spillage, and provides a smoother ride. This system automatically selects a gear position based on grade, speed, and acceleration.
Komatsu Traction Control System (KTCS) for Optimal Traction: Engineered for optimal traction in soft or wet road conditions, KTCS monitors wheel slippage at the rear axle. If slippage is detected, brakes are independently and automatically applied to each wheel set, ensuring optimal traction.
High Rigidity Frame for Increased Durability: Critical areas of the main frame feature cast-steel components, where loads and shocks are most concentrated. This design choice enhances machine durability, ensuring robust performance even in demanding conditions.
Robust Dump Body Design for Stability and Durability: Benefit from remarkable rigidity and low maintenance costs with a dump body made of high-tensile-strength steel. The standard V-shape body design enhances stability and lowers the center of gravity for improved performance.
Ergonomically Designed Cab for Operator Comfort: Operator comfort is prioritized with an ergonomically designed cab compartment featuring a convenient control layout. This design enhances productivity by ensuring operators have a comfortable and efficient workspace.
Convenient Access for Machine Maintenance: Make machine maintenance more convenient with inclined stairs and handrails providing easy access to the cab and service deck. This thoughtful design streamlines routine checks and service tasks.
Integrated Payload Meter for Efficient Hauling: Efficiently manage hauling cycle payloads and analyze production volume with the integrated payload meter. Loaded weight is displayed in real-time on the payload display and external lamps, providing valuable insights into working conditions.
Ground-Accessible Battery Compartment for Easy Maintenance: Facilitate daily checks and battery replacement with a ground-accessible battery compartment. Located at ground level, it ensures convenient access for routine maintenance tasks.
Centralized Greasing Points for Easy Maintenance: Simplify maintenance tasks with ground-level greasing points centralized at three locations. This design ensures easy accessibility for greasing, contributing to the overall efficiency of machine maintenance.
Product Specifications for HD405-8:
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 lbs.-ft.
- Fuel System: Direct injection
- Governor: Electronically controlled
- Lubrication System:
- Method: Gear pump, force-lubrication
- 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 a 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 cylinders
- 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, the 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%
- Empty:
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
Further information on this machine can be viewed by visiting this link https://www.komatsu.com/products/trucks/mechanical-trucks/hd405-8
Do you have one of these or similar for sale? Please click here start to list your machine for sale today.
