The intelligent HST dozer you mentioned, featuring the latest IMC 2.0 capabilities, introduces significant improvements to enhance productivity and operational efficiency. Here are some key features:
- IMC 2.0 built-in features designed to increase productivity.
- Increased overall travel speed with four speed presets for versatile operation.
- Fast travel and steering response facilitated by the HST (Hydrostatic Transmission) drive.
Product Features and benefits:
Proactive Dozing Control
Empower operators, even those with less experience, with proactive dozing control. The dozer automatically cuts or strips from existing terrain, measuring the terrain it tracks over to plan the next pass. This innovative feature can boost productivity by up to 60% compared to the previous generation.
Automatic Fill Spreading
Lift layer control allows operators to effortlessly spread fill material from existing terrain with the press of a button. The dozer measures the tracked terrain, using the data to plan the next pass. Achieve up to double your production and ensure consistent layers for optimal compaction quality.
Efficient Material Leveling
Tilt steering control automatically tilts the blade to maintain straight travel during rough dozing, reducing operator steering input by up to 80%.
Quick Surface Creation
Enable operators to create a temporary design surface with the press of a button. Combined with other IMC 2.0 functions, your crew can initiate stripping or spreading using automated input while awaiting the finish grade model.
Closing the Operator Skill Gap
Machine logic enables the dozer to continuously learn the terrain, making calculated decisions for the next pass. Intelligent Machine Control (IMC) plays a crucial role in narrowing the skill gap between new and experienced operators.
Versatile Machine Control
In specific situations such as auto stripping, rough dozing, spreading, and advanced finish grading, operators can choose nearly 100% machine control auto usage. Automatic control is applicable even without a 3D model.
Learning from Operator’s Input
Automatic functions endow the dozer with the ability to learn from the operator’s blade input, enhancing adaptability, easing operation, and reducing reliance on constant operator input.
Blade Response Excellence
Intelligent Machine Control (IMC) facilitates outstanding blade response for finish grading, enabling the dozer to anticipate grade transitions and adjust the blade angle accordingly.
Product Specifications for D71EXi-24:
Engine:
- Model: Komatsu SAA6D114E-6
- 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: 4.5 x 5.7 in
- Piston displacement: 540 in³
- Governor: All-speed and mid-range, electronic
- Horsepower:
- SAE J1995 – Gross: 240 HP
- ISO 9249 / SAE J1349 – Net: 237 HP
- Hydraulic fan at maximum speed: 213 HP
- Rated rpm: 2,100 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
- Travel speed (quick shift mode):
- Forward: 0-2.4 mph, 0-4 mph, 0-5.2 mph, 0-6.8 mph
- Reverse: 0-2.8 mph, 0-4.7 mph, 0-5.8 mph, 0-6.8 mph
- Travel speed (variable mode): 0.5-6.8 mph
- Final drive: In-shoe mounted axial piston type travel motors with integrated two-stage planetary gear reduction
- Steering system: PCCS joystick control for all directional movements
- Minimum turning radius: 10 ft. 2 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) with lubricated rotating bushings
- Number of track rollers (each side): 8
- Type of shoes (standard): Single grouser
- Number of shoes (each side): 45
- Grouser height: 2.6 in
- Shoe width (standard): 24 in
- Ground contact area: 43 ft²
- Ground pressure (with dozer, ROPS cab): 6.3 psi
- Track gauge: 7 ft. 3 in
- Length of track on ground: 10 ft. 8.9 in
Service Refill Capacities:
- Coolant: 14.4 US gal
- Fuel tank: 116.0 US gal
- Engine oil: 8.1 US gal
- Hydraulic tank: 40.7 US gal
- Final drive (each side): 2.6 US gal
- DEF tank: 5.3 US gal
Operating Weight (Approximate):
- Tractor weight (D71EXi-24): 47,069 lbs
- Operating weight (D71EX-24): 49,824 lbs
- Operating weight (D71EXi-24): 50,045 lbs
Hydraulic System:
- Closed-Center Load Sensing System (CLSS)
- Hydraulic control unit: All spool control valves externally mounted remote to the hydraulic tank
- Piston-type hydraulic pump with capacity (discharge flow) of 62.3 US gpm at rated engine rpm
- Relief valve setting: 4,177 psi
- Hydraulic cylinders: Double-acting, piston type
- Blade lift (2): 4.7 in
- Blade tilt (1): 5.1 in
- Blade angle (2): 4.3 in
- Hydraulic oil capacity (refill) for Power Angle Tilt dozer: 40.7 US gal
Control Valves:
- 3-spool control valve for Power Angle Tilt dozer
- Positions: 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
- Positions: Ripper lift (Raise, hold, and lower)
Further information on this machine can be viewed by visiting this link https://www.komatsu.com/products/dozers/mid-size-dozers/d71exi-24
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