Crafted for efficient and highly productive cycle times, the HD325-8 is poised to become your go-to workhorse on the job. Featuring a MacPherson-strut-type front suspension, this machine not only delivers a tight turning radius but also ensures excellent maneuverability and operator comfort.
Key advancements include:
- Up to a 9% reduction in fuel consumption*, promoting cost-effectiveness 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.
Product Features and benefits:
Smooth Ride with MacPherson-Strut-Type Suspension: Ensure operator comfort, even on uneven roads, with our MacPherson-strut-type independent front suspension. This innovative design allows the front wheels to smoothly adapt to uneven road surfaces, providing a comfortable and stable ride.
Reliable Braking Performance with Fully Hydraulic Wet Multiple-Disc Brakes: Boost operator confidence during downhill operations with our fully hydraulic wet multiple-disc brakes. Continuously oil-cooled, these brakes function as a responsive retarder, ensuring stable and reliable braking performance even at higher speeds.
Automatic Retard Speed Control for Enhanced Steering Focus: Prioritize steering control by utilizing automatic retard speed control. Operators can easily set downhill travel speed increments, allowing the system to automatically lower travel speed if oil temperature reaches a predefined limit, reducing the need for constant manual adjustments.
Efficient Transmission with K-ATOMiCS Technology: Experience fuel efficiency, reduced material spillage, and a smoother ride with our Komatsu Advanced Transmission with Optimum Modulation Control System (K-ATOMiCS). This system automatically selects the optimal gear position based on grade, speed, and acceleration.
Optimal Traction with Komatsu Traction Control System (KTCS): Engineered for soft or wet road conditions, KTCS monitors wheel slippage at the rear axle. In case of slippage detection, brakes are independently and automatically applied to each wheel set, ensuring optimal traction.
Highly Durable Frame for Increased Machine Longevity: Enhance machine durability with cast-steel components strategically used in critical areas of the main frame, where loads and shocks are most concentrated, providing remarkable rigidity and longevity.
Robust Dump Body Design for Stability and Low Maintenance: Benefit from stability and a lower center of gravity with our robust dump body design made of high-tensile-strength steel. This design ensures remarkable rigidity and lowers maintenance costs, featuring a standard V-shape body.
Ergonomically Designed Cab for Operator Comfort: Prioritize operator comfort with an ergonomically designed cab compartment. The control layout is conveniently arranged to enhance operator comfort, contributing to increased operational productivity.
Convenient Access for Easy Machine Maintenance: Simplify machine maintenance with inclined stairs and handrails providing easy access to the cab and service deck, ensuring convenient and efficient maintenance procedures.
Integrated Payload Meter for Efficient Hauling Management: Efficiently manage hauling cycle payloads with the integrated payload meter. The system enables real-time monitoring of loaded weight, allowing for analysis of production volume and working conditions for specific time periods.
Ground-Accessible Battery Compartment for Easy Checks: Facilitate daily checks and battery replacement with a ground-accessible battery compartment. This design ensures convenient access for efficient maintenance procedures.
Centralized Greasing Points for Easy Accessibility: Streamline maintenance with ground-level greasing points centralized at three locations. This design ensures easy accessibility for greasing procedures, contributing to efficient machine maintenance.
Product Specifications for HD325-8:
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: 1,600 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: 42.3 mph
Axles:
- Rear Axle: Full-floating
- Final Drive Type: Planetary gear
- Ratios:
- Differential: 3.125
- Planetary: 4.737
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 cylinders
- Supplementary Steering: Automatic/manual control (meets ISO 5010, SAE J1511 and SAE J53)
- Minimum Turning Radius: 23 ft. 7 in
- Maximum Steering Angle: 43°
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: 22.1 yd³
- Heaped (2:1, SAE): 31.4 yd³
- Payload, Maximum: 40.3 US tons
- Material (High-Tensile-Strength Steel): 184,860 psi
- Structure: V-shape body
- Material Thickness:
- Bottom: 0.63 in
- Front: 0.47 in
- Sides: 0.35 in
- Target Area (Inside Length x Width): 18 ft. 1 in x 11 ft. 1 in
- Dumping Angle: 48°
- Height at Full Dump: 26 ft. 4 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: 75,354 lbs.
- Max. Gross Vehicle Weight:
- Standard Tire: 155,999 lbs.
- Not to exceed max. gross vehicle weight, including options, fuel
- Weight Distribution:
- Empty:
- Front Axle: 56.5%
- Rear Axle:
- Empty:
Further information on this machine can be viewed by visiting this link https://www.komatsu.com/products/trucks/mechanical-trucks/hd325-8
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