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    Komatsu D275A-5R VS Komatsu D155A-6 Dozer

    Komatsu D275A-5R vs Komatsu D155A-6: the two differ on 61 of 77 listed specs. The main differences are Engine (Komatsu 449 HP vs Komatsu 360 HP), Operating Weight (50,850 kg vs 41,700 kg), Weight (50850 kg vs 41700 kg), Fuel Tank (840 L vs 625 L). The other 16 specs are the same.

    Specs from OEM brochures · comparison updated Sep 2026

    Komatsu D275A-5R
    Price Available Soon*

    Komatsu D275A-5R

    • Engine

      Komatsu 449 HP

    • Weight

      50850 kg

    • Blade Capacity

      13.7 m³

    • Blade Type

      Semi-U tilt

    • Blade W x H

      4300 x 1960 mm

    • Speeds (F/R)

      3F / 3R

    Mining Dozers
    Komatsu D155A-6
    Price Available Soon*

    Komatsu D155A-6

    • Engine

      Komatsu 360 HP

    • Weight

      41700 kg

    • Blade Capacity

      9.4 m³

    • Blade Type

      Semi-U tilt

    • Blade W x H

      4130 x 1790 mm

    • Speeds (F/R)

      4 F / 4 R

    Mining Dozers

    Add a third machine

    What's different: Komatsu D275A-5R vs Komatsu D155A-6

    61 specs differ, 16 are identical. The full tables are below.

    SpecKomatsu D275A-5RKomatsu D155A-6
    EngineKomatsu 449 HPKomatsu 360 HP
    Operating Weight50,850 kg41,700 kg
    Weight50850 kg41700 kg
    Fuel Tank840 L625 L
    Blade Capacity13.7 m³9.4 m³
    Warranty12 months / 2000 hrs12 Months
    BrandL&T Komatsu DozerKomatsu Dozer
    Blade W x H4300 x 1960 mm4130 x 1790 mm

    See all 61 differences ↓

    * Ex-factory price ranges are indicative for Oct 2026 and change with variant, city and offers; confirm with the dealer. On-road cost adds transport, RTO, insurance and accessories. Disclaimer

    The comparisons provided are based on the technical specifications published by the respective OEMs on their official websites and brochures. Please confirm these details directly with the OEMs before making any final decision.

    Key Highlights Komatsu D275A-5RKomatsu D155A-6
    Komatsu D275A-5R VS Komatsu D155A-6 Dozer

    Komatsu D275A-5R vs Komatsu D155A-6: the two differ on 61 of 77 listed specs. The main differences are Engine (Komatsu 449 HP vs Komatsu 360 HP), Operating Weight (50,850 kg vs 41,700 kg), Weight (50850 kg vs 41700 kg), Fuel Tank (840 L vs 625 L). The other 16 specs are the same.

    Specs from OEM brochures · comparison updated Sep 2026

    Komatsu D275A-5R
    Komatsu D275A-5R

    Price Available Soon

    Komatsu D155A-6
    Komatsu D155A-6

    Price Available Soon

    Particulars Komatsu D275A-5R Komatsu D155A-6

    Komatsu D155A-6 vs Komatsu D275A-5R: which mining dozer matches your production step?

    The Komatsu D155A-6 is the smaller of the two, at 360 HP against the Komatsu D275A-5R's 449 HP, with a 9.4 m³ blade against 13.7 m³. It turns in a far tighter radius of 2,140 mm against the D275A-5R's 3,900 mm, useful in tight quarry corners. The Komatsu D275A-5R carries more blade capacity and a bigger fuel tank, and its lower ground bearing pressure means it sinks less on soft ground than the D155A-6, even though it is the heavier machine.

    Choose by where you sit on the production ladder. A contractor moving up from construction-class equipment into mining-class ownership gets a practical start in the D155A-6, with a smaller frame that is easier to turn and place. A site that has outgrown that entry point, and needs more blade volume and fuel range, fits the D275A-5R better. Both are mining dozers in our dozer range, and our bulldozer guide can help size the right class for your pit.

    Komatsu D155A-6

    Pros:

    • Turns in a tighter radius of 2,140 mm for confined pit corners and quarry benches
    • Two ripper choices, multi-shank or giant single-shank, to match different ground
    • Automatic TORQFLOW transmission with a lockup converter for steady fuel use on long pushes
    • Smaller, easier-to-place frame for a first mining-class dozer
    • Backed by Komatsu's dealer network for parts and diagnostics

    Cons:

    • Less powerful at 360 HP against the D275A-5R's 449 HP
    • Smaller blade at 9.4 m³ against 13.7 m³
    • Higher ground bearing pressure, sinks more on the same soft ground
    • Smaller fuel tank at 625 litres, needs more frequent refuelling on long shifts

    Komatsu D275A-5R

    Pros:

    • More powerful at 449 HP with a bigger 13.7 m³ blade
    • Lower ground bearing pressure, sinks less on soft mining ground
    • Larger fuel tank at 840 litres for longer shifts
    • Sits between common mining classes for medium-scale opencast production
    • Choice of giant single-shank or 3-shank multi-shank ripper

    Cons:

    • Wider turning radius at 3,900 mm, less nimble in tight pit corners
    • Heavier machine, needs more haul-road and transport planning than the D155A-6
    • Bigger footprint needs more site space to manoeuvre than the D155A-6

    Pros:

    Cons:

    Closing Recommendation

    The Komatsu D155A-6 suits a contractor moving up from construction-class equipment into mining-class dozer ownership, where a smaller frame and tighter turning radius still get the job done. The Komatsu D275A-5R suits medium-scale opencast mining that has outgrown entry-level capacity and needs more blade volume and fuel range for longer shifts. So match the machine to your work: Komatsu D155A-6 for a first step into mining-class ownership, Komatsu D275A-5R for medium-scale opencast production.

    Komatsu D275A-5R Vs Komatsu D155A-6 Dozer Price, Technical Specifications & Features

    BrandL&T Komatsu DozerKomatsu Dozer
    TypeMining DozersMining Dozers
    Operating CostNot AvailableNot Available
    PricePrice Available SoonPrice Available Soon
    EngineKomatsu 449 HPKomatsu 360 HP
    Weight50850 kg41700 kg
    Blade Capacity13.7 m³9.4 m³
    Blade TypeSemi-U tiltSemi-U tilt
    Blade W x H4300 x 1960 mm4130 x 1790 mm
    Speeds (F/R)3F / 3R4 F / 4 R
    Quick Overview:The Komatsu D275A-5R is a 50.9-tonne mining crawler dozer powered by a 449 HP engine. Its 13.7 m³ blade handles heavy cuts, while the 840-litre fuel tank supports long working shifts. A 3-shank multi-shank ripper provides wider breaking coverage, while the variable giant single-shank reaches 1,420 mm for deeper work. The choice allows the same machine to handle different ground conditions. Tractor-only ground bearing pressure is 87.3 kPa and rises to about 118 kPa in full operating trim. Firm mining benches are better suited to this configuration than soft fill. The D275A-5R sits between the D155A-6 and D375A-6 in Komatsu's mining range. Its operating size makes it suitable for quarry and overburden work where construction-class machines are no longer sufficient. Mining contractors can consider this dozer machine when daily production requirements have moved beyond the D155A-6. The two ripper choices provide flexibility between deep breaking and wider coverage. Its blade capacity also supports substantial material movement during each pass. Buyers can therefore compare the required ripping depth, ground conditions and production volume before selecting this model for mining work.The Komatsu D155A-6 is a 41.7-tonne mining crawler dozer powered by a 360 HP engine. Its 9.4 m³ blade provides substantial material-moving capacity, while two ripper configurations give operators different approaches to breaking. The 3-shank multi-shank ripper reaches 900 mm, whereas the giant single-shank reaches 1,370 mm for deeper work. SIGMADOZER, Semi-U and Full-U blade configurations are available for different applications. Ground bearing pressure is 115.8 kPa, with 500 mm of ground clearance for rough mining surfaces. A 625-litre fuel tank supports full-shift operation. The D155A-6 is the smallest of Komatsu's listed mining crawler dozers and sits below the D275A-5R, D375A-6 and D475A-5E0. Quarry and opencast operations are suitable applications. Pricing is available on request from mining dozer dealers. A mining contractor moving beyond construction-class equipment can consider this dozer machine when greater pushing and ripping capacity becomes necessary. The two ripper configurations allow buyers to match the setup to the ground. Its operating weight keeps it below the larger Komatsu mining machines. For operators entering mining-class dozer ownership, the D155A-6 provides a practical starting point before moving into higher-capacity equipment.
    Agency reviewPlanning to buy the Komatsu D275A-5R Dozer in India? Get the best price, EMI & finance options, and delivery timelines by submitting a quick enquiry.Planning to buy the Komatsu D155A-6 Dozer in India? Get the best price, EMI & finance options, and delivery timelines by submitting a quick enquiry.

    Komatsu D155A-6 vs Komatsu D275A-5R: which mining dozer matches your production step?

    The Komatsu D155A-6 is the smaller of the two, at 360 HP against the Komatsu D275A-5R's 449 HP, with a 9.4 m³ blade against 13.7 m³. It turns in a far tighter radius of 2,140 mm against the D275A-5R's 3,900 mm, useful in tight quarry corners. The Komatsu D275A-5R carries more blade capacity and a bigger fuel tank, and its lower ground bearing pressure means it sinks less on soft ground than the D155A-6, even though it is the heavier machine.

    Choose by where you sit on the production ladder. A contractor moving up from construction-class equipment into mining-class ownership gets a practical start in the D155A-6, with a smaller frame that is easier to turn and place. A site that has outgrown that entry point, and needs more blade volume and fuel range, fits the D275A-5R better. Both are mining dozers in our dozer range, and our bulldozer guide can help size the right class for your pit.

    Komatsu D155A-6

    Pros:

    • Turns in a tighter radius of 2,140 mm for confined pit corners and quarry benches
    • Two ripper choices, multi-shank or giant single-shank, to match different ground
    • Automatic TORQFLOW transmission with a lockup converter for steady fuel use on long pushes
    • Smaller, easier-to-place frame for a first mining-class dozer
    • Backed by Komatsu's dealer network for parts and diagnostics

    Cons:

    • Less powerful at 360 HP against the D275A-5R's 449 HP
    • Smaller blade at 9.4 m³ against 13.7 m³
    • Higher ground bearing pressure, sinks more on the same soft ground
    • Smaller fuel tank at 625 litres, needs more frequent refuelling on long shifts

    Komatsu D275A-5R

    Pros:

    • More powerful at 449 HP with a bigger 13.7 m³ blade
    • Lower ground bearing pressure, sinks less on soft mining ground
    • Larger fuel tank at 840 litres for longer shifts
    • Sits between common mining classes for medium-scale opencast production
    • Choice of giant single-shank or 3-shank multi-shank ripper

    Cons:

    • Wider turning radius at 3,900 mm, less nimble in tight pit corners
    • Heavier machine, needs more haul-road and transport planning than the D155A-6
    • Bigger footprint needs more site space to manoeuvre than the D155A-6

    Pros:

    Cons:

    Closing Recommendation

    The Komatsu D155A-6 suits a contractor moving up from construction-class equipment into mining-class dozer ownership, where a smaller frame and tighter turning radius still get the job done. The Komatsu D275A-5R suits medium-scale opencast mining that has outgrown entry-level capacity and needs more blade volume and fuel range for longer shifts. So match the machine to your work: Komatsu D155A-6 for a first step into mining-class ownership, Komatsu D275A-5R for medium-scale opencast production.

    Komatsu D275A-5R Vs Komatsu D155A-6 Dozer Price, Technical Specifications & Features

    Komatsu D275A-5RKomatsu D155A-6
    Brand
    L&T Komatsu DozerKomatsu Dozer
    Type
    Mining DozersMining Dozers
    Price
    Price Available SoonPrice Available Soon
    Engine
    Komatsu 449 HPKomatsu 360 HP
    Weight
    50850 kg41700 kg
    Blade Capacity
    13.7 m³9.4 m³
    Blade Type
    Semi-U tiltSemi-U tilt
    Blade W x H
    4300 x 1960 mm4130 x 1790 mm
    Speeds (F/R)
    3F / 3R4 F / 4 R
    Quick Overview:
    The Komatsu D275A-5R is a 50.9-tonne mining crawler dozer powered by a 449 HP engine. Its 13.7 m³ blade handles heavy cuts, while the 840-litre fuel tank supports long working shifts. A 3-shank multi-shank ripper provides wider breaking coverage, while the variable giant single-shank reaches 1,420 mm for deeper work. The choice allows the same machine to handle different ground conditions. Tractor-only ground bearing pressure is 87.3 kPa and rises to about 118 kPa in full operating trim. Firm mining benches are better suited to this configuration than soft fill. The D275A-5R sits between the D155A-6 and D375A-6 in Komatsu's mining range. Its operating size makes it suitable for quarry and overburden work where construction-class machines are no longer sufficient. Mining contractors can consider this dozer machine when daily production requirements have moved beyond the D155A-6. The two ripper choices provide flexibility between deep breaking and wider coverage. Its blade capacity also supports substantial material movement during each pass. Buyers can therefore compare the required ripping depth, ground conditions and production volume before selecting this model for mining work.The Komatsu D155A-6 is a 41.7-tonne mining crawler dozer powered by a 360 HP engine. Its 9.4 m³ blade provides substantial material-moving capacity, while two ripper configurations give operators different approaches to breaking. The 3-shank multi-shank ripper reaches 900 mm, whereas the giant single-shank reaches 1,370 mm for deeper work. SIGMADOZER, Semi-U and Full-U blade configurations are available for different applications. Ground bearing pressure is 115.8 kPa, with 500 mm of ground clearance for rough mining surfaces. A 625-litre fuel tank supports full-shift operation. The D155A-6 is the smallest of Komatsu's listed mining crawler dozers and sits below the D275A-5R, D375A-6 and D475A-5E0. Quarry and opencast operations are suitable applications. Pricing is available on request from mining dozer dealers. A mining contractor moving beyond construction-class equipment can consider this dozer machine when greater pushing and ripping capacity becomes necessary. The two ripper configurations allow buyers to match the setup to the ground. Its operating weight keeps it below the larger Komatsu mining machines. For operators entering mining-class dozer ownership, the D155A-6 provides a practical starting point before moving into higher-capacity equipment.
    61 differ · 16 identical

    Key highlights: Komatsu D275A-5R vs Komatsu D155A-6 Dozer

    Komatsu D275A-5RKomatsu D155A-6
    Engine MakeKomatsu SAA6D140E-5Komatsu SAA6D140E-5
    Rated Engine Power335 kW (449 HP) @ 2000 rpm268 kW (360 HP) @ 1900 rpm
    Maximum TorqueNANA
    Max Forward Speed11.2 km/h11.4 km/h
    Max Drawbar PullNANA
    Fuel Tank840 L625 L
    Overall Width4300 mm4130 mm
    Track Shoe Width610 mm560 mm
    Ground Bearing Pressure87.3 kPa tractor only; 118 kPa operating115.8 kPa
    Blade Optionsdual-tilt versions, Semi-U tilt, U tiltangle dozer, Full-U, Semi-U / strengthened Semi-U, SIGMADOZER / strengthened SIGMADOZER
    RipperVariable giant ripper (4600 kg; digging depth 1420 mm) or 3-shank multi-shank (4462 kg)Optional: variable multi-shank 3-shank (3760 kg; dig 900 mm) or variable giant single-shank (3380 kg; dig 1370 mm)
    AC CabinOptional (AC with heater and defroster)Optional (high-capacity)
    Warranty12 months / 2000 hrs12 Months

    Key highlights: Komatsu D275A-5R vs Komatsu D155A-6 Dozer

    Komatsu D275A-5RKomatsu D155A-6
    Engine Make
    Komatsu SAA6D140E-5Komatsu SAA6D140E-5
    Rated Engine Power
    335 kW (449 HP) @ 2000 rpm268 kW (360 HP) @ 1900 rpm
    Maximum Torque
    NANA
    Max Forward Speed
    11.2 km/h11.4 km/h
    Max Drawbar Pull
    NANA
    Fuel Tank
    840 L625 L
    Overall Width
    4300 mm4130 mm
    Track Shoe Width
    610 mm560 mm
    Ground Bearing Pressure
    87.3 kPa tractor only; 118 kPa operating115.8 kPa
    Blade Options
    dual-tilt versions, Semi-U tilt, U tiltangle dozer, Full-U, Semi-U / strengthened Semi-U, SIGMADOZER / strengthened SIGMADOZER
    Ripper
    Variable giant ripper (4600 kg; digging depth 1420 mm) or 3-shank multi-shank (4462 kg)Optional: variable multi-shank 3-shank (3760 kg; dig 900 mm) or variable giant single-shank (3380 kg; dig 1370 mm)
    AC Cabin
    Optional (AC with heater and defroster)Optional (high-capacity)
    Warranty
    12 months / 2000 hrs12 Months

    Full specifications: Komatsu D275A-5R vs Komatsu D155A-6 Dozer

    Engine

    2681126833
    ModelKomatsu SAA6D140E-5Komatsu SAA6D140E-5
    FuelDieselDiesel
    Type4-stroke, water-cooled, turbocharged, air-to-air aftercooled, direct injection4-cycle, water-cooled, direct injection; turbocharged, air-to-air aftercooled
    No. of Cylinders66 (140 x 165 mm)
    Piston Displacement15.24 L15.24 L
    Rated Engine Power335 kW (449 HP) @ 2,000 rpm268 kW (360 HP) @ 1,900 rpm
    Maximum TorqueNANA

    Transmission

    2681126833
    Transmission TypeTORQFLOW power shift with ECMVAutomatic TORQFLOW planetary powershift, ECMV controlled; automatic / manual gearshift modes
    Torque ConverterWater-cooled, 3-element, 1-stage, 1-phaseWater-cooled, 3-element, 1-stage, 1-phase
    Speeds (F/R)3F / 3R4 F / 4 R (1st, 2nd, 3rd-L, 3rd)
    Max Forward Speed11.2 km/h11.4 km/h
    Max Reverse Speed14.9 km/h13.7 km/h
    Final DriveDouble-reduction spur + planetary, segmented bolt-on sprocketDouble reduction, spur + planetary; bolt-on segmented sprockets

    Performance

    2681126833
    Max Drawbar PullNANA
    GradeabilityNANA
    Min Turning Radius3,900 mm2,140 mm

    Steering & Brakes

    2681126833
    Steering TypeWet multiple-disc, ECMV controlled, PCCS joystickPCCS lever control; wet multiple-disc steering clutches
    BrakesWet multiple-disc (maintenance-free), spring loadedWet multiple-disc, pedal-controlled, spring-actuated / hydraulically released; gearshift lock lever applies parking brake

    Undercarriage

    2681126833
    SuspensionOscillating equalizer bar + pivot shaft (K-Bogie)Oscillation-type equalizer bar, forward-mounted pivot shafts; monocoque track roller frame
    No of Bottom Rollers77
    No of Top Rollers22
    Track Shoes (Each Side)3941
    Track Shoe Width610 mm560 mm
    Grouser Height88 mm80 mm
    Track GaugeNA2,140 mm
    Ground Contact Area42,456 cm²35,280 cm2
    Ground Bearing Pressure87.3 kPa tractor only; 118 kPa operating115.8 kPa

    Dozer Blade

    2681126833
    Standard Blade TypeSemi-U tilt dozerSemi-U tilt
    Blade Capacity13.7 m³9.4 m³
    Blade Width x Height4,300 x 1,960 mm4,130 x 1,790 mm
    Max Lift Above Ground1,450 mm1,250 mm
    Max Drop Below Ground640 mm590 mm
    Blade Tilt Adjustment1,000 mm950 mm
    Blade OptionsSemi-U tilt, U tilt, dual-tilt versionsSemi-U / strengthened Semi-U, Full-U, angle dozer, SIGMADOZER / strengthened SIGMADOZER

    Ripper

    2681126833
    Ripper AvailabilityVariable giant ripper (4,600 kg, digging depth 1,420 mm) or 3-shank multi-shank (4,462 kg)Optional: variable multi-shank 3-shank (3,760 kg, dig 900 mm) or variable giant single-shank (3,380 kg, dig 1,370 mm)

    Hydraulic System

    2681126833
    Hydraulic PumpPlunger pump (CLSS)Variable piston pump, CLSS (closed-centre load sensing)
    Maximum Flow230 L/min200 L/min @ rated rpm (implement)
    Relief Pressure27.5 MPa27.5 MPa (implement)
    Blade ControlPCCS palm joystick, PPCPCCS palm-command PPC joystick; raise / hold / lower / float

    Machine Weights

    2681126833
    Operating Weight50,850 kg41,700 kg
    Weight BasisSemi-U tilt dozer + giant ripper + steel cab + ROPS + operatorStrengthened Semi-U + giant ripper + cab + operator + full fuel

    Static Dimensions

    2681126833
    Overall Length9,290 mm6,010 mm
    Overall Width4,300 mm4,130 mm
    Overall Height3,915 mm3,510 mm
    Min. Ground Clearance507 mm500 mm

    Service Capacities

    2681126833
    Fuel Tank840 L625 L
    Engine Oil52 L37 L
    Engine Coolant100 L82 L (coolant)
    Hydraulic System130 L85 L (Semi-U / U, refill) + 37 L (ripper, additional)
    Transmission System90 L90 L (transmission, bevel gear & steering)
    Final Drive (Each Side)40 L31 L

    Operator Environment

    2681126833
    Operator StationHexagonal cab (pressurized optional), ROPS bracketsOpen ROPS standard; integrated ROPS cab optional (430 kg, ISO 3471 / FOPS ISO 3449); suspension seat
    AC CabinOptional (AC with heater and defroster)Optional (high-capacity)
    MonitoringMonitor with self-diagnostic function7-in TFT LCD multi-monitor (10 languages), KOMTRAX built-in; 4-stage troubleshooting codes

    Full specifications: Komatsu D275A-5R vs Komatsu D155A-6 Dozer

    Engine

    Komatsu D275A-5RKomatsu D155A-6
    Model
    Komatsu SAA6D140E-5Komatsu SAA6D140E-5
    Fuel
    DieselDiesel
    Type
    4-stroke, water-cooled, turbocharged, air-to-air aftercooled, direct injection4-cycle, water-cooled, direct injection; turbocharged, air-to-air aftercooled
    No. of Cylinders
    66 (140 x 165 mm)
    Piston Displacement
    15.24 L15.24 L
    Rated Engine Power
    335 kW (449 HP) @ 2,000 rpm268 kW (360 HP) @ 1,900 rpm
    Maximum Torque
    NANA

    Transmission

    Komatsu D275A-5RKomatsu D155A-6
    Transmission Type
    TORQFLOW power shift with ECMVAutomatic TORQFLOW planetary powershift, ECMV controlled; automatic / manual gearshift modes
    Torque Converter
    Water-cooled, 3-element, 1-stage, 1-phaseWater-cooled, 3-element, 1-stage, 1-phase
    Speeds (F/R)
    3F / 3R4 F / 4 R (1st, 2nd, 3rd-L, 3rd)
    Max Forward Speed
    11.2 km/h11.4 km/h
    Max Reverse Speed
    14.9 km/h13.7 km/h
    Final Drive
    Double-reduction spur + planetary, segmented bolt-on sprocketDouble reduction, spur + planetary; bolt-on segmented sprockets

    Performance

    Komatsu D275A-5RKomatsu D155A-6
    Max Drawbar Pull
    NANA
    Gradeability
    NANA
    Min Turning Radius
    3,900 mm2,140 mm

    Steering & Brakes

    Komatsu D275A-5RKomatsu D155A-6
    Steering Type
    Wet multiple-disc, ECMV controlled, PCCS joystickPCCS lever control; wet multiple-disc steering clutches
    Brakes
    Wet multiple-disc (maintenance-free), spring loadedWet multiple-disc, pedal-controlled, spring-actuated / hydraulically released; gearshift lock lever applies parking brake

    Undercarriage

    Komatsu D275A-5RKomatsu D155A-6
    Suspension
    Oscillating equalizer bar + pivot shaft (K-Bogie)Oscillation-type equalizer bar, forward-mounted pivot shafts; monocoque track roller frame
    No of Bottom Rollers
    77
    No of Top Rollers
    22
    Track Shoes (Each Side)
    3941
    Track Shoe Width
    610 mm560 mm
    Grouser Height
    88 mm80 mm
    Track Gauge
    NA2,140 mm
    Ground Contact Area
    42,456 cm²35,280 cm2
    Ground Bearing Pressure
    87.3 kPa tractor only; 118 kPa operating115.8 kPa

    Dozer Blade

    Komatsu D275A-5RKomatsu D155A-6
    Standard Blade Type
    Semi-U tilt dozerSemi-U tilt
    Blade Capacity
    13.7 m³9.4 m³
    Blade Width x Height
    4,300 x 1,960 mm4,130 x 1,790 mm
    Max Lift Above Ground
    1,450 mm1,250 mm
    Max Drop Below Ground
    640 mm590 mm
    Blade Tilt Adjustment
    1,000 mm950 mm
    Blade Options
    Semi-U tilt, U tilt, dual-tilt versionsSemi-U / strengthened Semi-U, Full-U, angle dozer, SIGMADOZER / strengthened SIGMADOZER

    Ripper

    Komatsu D275A-5RKomatsu D155A-6
    Ripper Availability
    Variable giant ripper (4,600 kg, digging depth 1,420 mm) or 3-shank multi-shank (4,462 kg)Optional: variable multi-shank 3-shank (3,760 kg, dig 900 mm) or variable giant single-shank (3,380 kg, dig 1,370 mm)

    Hydraulic System

    Komatsu D275A-5RKomatsu D155A-6
    Hydraulic Pump
    Plunger pump (CLSS)Variable piston pump, CLSS (closed-centre load sensing)
    Maximum Flow
    230 L/min200 L/min @ rated rpm (implement)
    Relief Pressure
    27.5 MPa27.5 MPa (implement)
    Blade Control
    PCCS palm joystick, PPCPCCS palm-command PPC joystick; raise / hold / lower / float

    Machine Weights

    Komatsu D275A-5RKomatsu D155A-6
    Operating Weight
    50,850 kg41,700 kg
    Weight Basis
    Semi-U tilt dozer + giant ripper + steel cab + ROPS + operatorStrengthened Semi-U + giant ripper + cab + operator + full fuel

    Static Dimensions

    Komatsu D275A-5RKomatsu D155A-6
    Overall Length
    9,290 mm6,010 mm
    Overall Width
    4,300 mm4,130 mm
    Overall Height
    3,915 mm3,510 mm
    Min. Ground Clearance
    507 mm500 mm

    Service Capacities

    Komatsu D275A-5RKomatsu D155A-6
    Fuel Tank
    840 L625 L
    Engine Oil
    52 L37 L
    Engine Coolant
    100 L82 L (coolant)
    Hydraulic System
    130 L85 L (Semi-U / U, refill) + 37 L (ripper, additional)
    Transmission System
    90 L90 L (transmission, bevel gear & steering)
    Final Drive (Each Side)
    40 L31 L

    Operator Environment

    Komatsu D275A-5RKomatsu D155A-6
    Operator Station
    Hexagonal cab (pressurized optional), ROPS bracketsOpen ROPS standard; integrated ROPS cab optional (430 kg, ISO 3471 / FOPS ISO 3449); suspension seat
    AC Cabin
    Optional (AC with heater and defroster)Optional (high-capacity)
    Monitoring
    Monitor with self-diagnostic function7-in TFT LCD multi-monitor (10 languages), KOMTRAX built-in; 4-stage troubleshooting codes

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    Questions buyers ask about the Komatsu D275A-5R vs Komatsu D155A-6

    Ans.

    The Komatsu D275A-5R is more powerful. It is rated at 449 HP against the D155A-6's 360 HP, with a bigger 13.7 m³ blade against 9.4 m³. That extra power supports bigger cuts and higher output per pass.

    Ans.

    The Komatsu D155A-6 turns tighter. Its minimum turning radius is 2,140 mm against the D275A-5R's 3,900 mm. That makes it easier to manoeuvre in confined pit corners and smaller quarry benches.

    Ans.

    The Komatsu D275A-5R sinks less. Its ground bearing pressure is lower than the D155A-6's, even though it is the heavier machine. Wider tracks help spread its weight over a larger footprint.

    Ans.

    The Komatsu D275A-5R holds more fuel, at 840 litres against the D155A-6's 625 litres. That supports longer shifts before a refuelling stop on large mining sites.

    Ans.

    Yes, it can work well as a first step. It gives a contractor moving beyond construction-class equipment a practical way into mining-class ownership, with two ripper choices to match different ground conditions.

    Komatsu D275A-5R Vs Komatsu D155A-6 - Compare Price & Availability Across 600+ Locations in India

    Compare Komatsu D275A-5R Vs Komatsu D155A-6 price and availability across all major cities in India including Mumbai, Pune, Kolkata, Hyderabad, Chennai, Bengaluru, Delhi, Ahmedabad, Indore, Jaipur, Guwahati, and 600+ more locations.

    Maharashtra
    26 cities

    • Mumbai

    • Pune

    • Nagpur

    • Navi Mumbai

    • Thane

    • Nashik

    • Aurangabad (Chhatrapati Sambhajinagar)

    • Solapur

    • Kolhapur

    • Amravati

    • Chandrapur

    • Yavatmal

    • Latur

    • Dhule

    • Ahmednagar

    • Jalgaon

    • Raigad

    • Beed

    • Wardha

    • Palghar

    • Sangli

    • Ratnagiri

    • Satara

    • Nanded

    • Akola

    • Buldhana

    Gujarat
    21 cities

    • Ahmedabad

    • Gandhinagar

    • Surat

    • Vadodara

    • Rajkot

    • Bhavnagar

    • Jamnagar

    • Mundra

    • Kutch

    • Vapi

    • Anand

    • Mehsana

    • Morbi

    • Surendranagar

    • Amreli

    • Bharuch

    • Navsari

    • Dahej

    • Alang

    • Dholera

    • Gandhidham

    Goa
    5 cities

    • Panaji

    • Vasco da Gama

    • Margao

    • Calangute

    • Mormugao

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