Capable of handling a variety of tasks, the D61EX-24 offers excellent visibility for all your projects. As a second-generation mid-size dozer, it introduces a new H mode to assist operators in maintaining ground speed while handling heavy loads.
- The next step up in size.
- Suitable for some heavier dozing tasks.
- Achieves up to an additional 5% reduction in fuel consumption compared to the prior model.
Product Features and benefits:
- Even Wear for Extended Life: The PLUS system is designed for even wear, allowing the machine to utilize close to 100% of undercarriage components. This results in lower undercarriage maintenance costs, reduced downtime, and longer component life compared to conventional undercarriage systems.
- Cost Savings: The PLUS undercarriage can lower maintenance costs by up to 40% when compared to traditional undercarriage systems. This makes it a cost-effective solution for maximizing the longevity of undercarriage components.
- Increased Wear Life: Strengthened rollers and links contribute to a longer wear life, with potential increases of up to two times compared to standard undercarriage systems. This enhancement improves overall durability and reduces the frequency of replacements.
- Power Angle Tilt (PAT) Dozer Blade: The PAT dozer blade with adjustable pitch system enhances productivity and versatility across various applications. It provides operators with flexibility in dozing operations, contributing to increased efficiency.
- Exceptional Blade Visibility: The innovative super-slant nose design ensures excellent blade visibility. Improved visibility enhances machine control, allowing operators to work with precision, efficiency, and increased productivity.
- HST with Electronic Control: The fully electronic control system for Hydrostatic Transmission (HST) ensures complete automatic shifting and enables smooth control. The Komatsu-designed HST allows for Quick-Shift or variable speed selection, providing versatility in different operating conditions.
- Easy-Access Maintenance Features: The dozer is equipped with easy-access maintenance features, including a swing-up fan with a gas strut-assisted lift system. This design facilitates convenient access to the radiator, oil cooler, and charge air cooler. The hydraulic fan includes a reversing function for cleaning any obstructions restricting airflow.
- Palm Command Control System Lever: The ergonomic and low-effort Palm Command Control System (PCCS) joystick is designed for operator comfort and ease of use. It controls all directional movements, including machine travel speed and counter-rotation, offering a user-friendly interface for precise machine control.
Product Specifications for D61EX-24:
Engine:
- Model: Komatsu SAA6D107E-3*
- Type: 4-cycle, water-cooled, direct injection
- Aspiration: Komatsu Variable Geometry Turbocharged, air-to-air aftercooled, cooled EGR
- Number of cylinders: 6
- Bore x stroke: 4.21 x 4.88 in
- Piston displacement: 408 in³
- Governor: All-speed and mid-range, electronic
- Horsepower:
- SAE J1995 – Gross: 170 HP
- ISO 9249 / SAE J1349 – Net: 168 HP
- Rated rpm: 2,200 rpm
- Fan drive type: Hydraulic
- Lubrication system:
- Method: Gear pump, force lubrication
- Filter: Full-flow
- *EPA Tier 4 Final emissions certified
Hydrostatic Transmission:
- Dual-path, hydrostatic transmission
- Infinite speed changes up to 9.0 km/h (5.6 mph)
- Variable capacity travel motors
- Travel speed (quick shift mode):
- Forward: 0-2.1 mph, Reverse: 0-2.5 mph
- Forward: 0-3.5 mph, Reverse: 0-4.0 mph
- Forward: 0-5.6 mph, Reverse: 0-5.6 mph
- Travel speed (variable mode): 0-5.6 mph
Final Drive:
- In-shoe mounted axial piston type travel motors
- Integrated two-stage planetary gear reduction
- Compact in-shoe mount
- Bolt-on sprocket for easy displacement
Steering System:
- PCCS joystick control for all directional movements
- Hydrostatic Steering (HST) eliminates steering clutches and brakes
- Fully electronic control
- Minimum turning radius: 83 in
Undercarriage:
- Suspension: Oscillating-type with equalizer bar and pivot shafts
- Track roller frame: Monocoque, large section, durable construction
- Rollers and idlers: Lubricated track rollers
- Lubricated tracks (Parallel Link Undercarriage System – PLUS)
- Number of track rollers: 8
- Type of shoes (standard): Single grouser
- Number of shoes: 46
- Grouser height: 2.3 in
- Shoe width (standard): 24
- Ground contact area: 5,887 in²
- Ground pressure (with dozer, ROPS canopy): 6.27 psi
- Track gauge: 6 ft. 3 in
- Length of track on the ground: 10 ft. 5 in
Service Refill Capacities:
- Coolant: 11.9 US gal
- Fuel tank: 98.3 US gal
- Engine oil: 7.2 US gal
- Hydraulic tank: 26.7 US gal
- Final drive (each side): 2.2 US gal
- DEF tank: 5.4 US gal
Operating Weight (Approximate):
- Tractor weight: 38,647 lbs.
- Operating weight: 40,830 lbs.
Hydraulic System:
- Closed-center Load Sensing System (CLSS)
- Hydraulic control unit: Piston-type hydraulic pump with a capacity of 171 ltr/min / 45 U.S. gal/min
- Relief valve setting: 3,974 psi
- Hydraulic cylinders: Double-acting, piston type
- Hydraulic oil capacity (refilling):
- Power angle tilt dozer: 26.7 US gal
- Control valves:
- 3-spool control valve for Power Angle Tilt dozer:
- Blade lift: Raise, hold, lower, and float
- Blade tilt: Right, hold, and left
- Blade angle: Right, hold, and left
- Additional control valve required for ripper:
- Ripper lift: Raise, hold, and lower
- 3-spool control valve for Power Angle Tilt dozer:
Further information on this machine can be viewed by visiting this link https://www.komatsu.com/products/dozers/mid-size-dozers/d61ex-24
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