KOMATSU D375A-8
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2024
Komastu
D375A-8
New
Ontario
Strength and performance
Whether you are looking to keep blasting, loading and dump areas clean, or construct and maintain haul roads, dozers have a direct impact on your fleet’s productivity. With new mainframes featuring twice the design life over previous models, Komatsu mining dozers are engineered to be powerful and durable.
- Up to 18% productivity increase over previous models
- Over 20% more engine power in the reverse direction versus forward direction
- 10% reduction in fuel consumption with automatic transmission with lockup torque converter compared to operation in manual gearshift mode
Coolant and Lubricant Capacity refill
| Fuel tank | 317.0 US gal |
| Coolant | 41.5 US gal |
| Engine | 21.1 US gal |
| Torque converter, transmission, bevel gear, and steering system |
39.6 US gal |
| Final drive (Each side) | 16.1 US gal |
Engine
| Model | Komatsu SAA6D170E-7 |
| Type | 4-cycle, water-cooled, direct injection |
| Aspiration | Turbocharged, air-to-air charge air cooler, cooled EGR |
| Number of cylinders | 6 |
| Bore x stroke | 6.69 x 6.69 in |
| Piston displacement | 1,413 in³ |
| Governor | Mid-range, electronic |
| Horsepower: | |
| SAE J1995 - Gross | |
| Forward | 636 HP |
| Reverse | 775 HP |
| ISO 9249 / SAE J1349* - Net | |
| Forward | 609 HP |
| Reverse | 748 HP |
| Rated rpm | 1,800 rpm |
| Fan drive type | Hydraulic |
| Lubrication system: | |
| Method | Gear pump, force lubrication |
| Filter | Full-flow |
| *Net horsepower at the maximum speed of radiator cooling fan: |
|
| Forward | 580 HP |
| Reverse | 719 HP |
U.S. EPA Tier 4 Final emission certified.
Final drive
Hydraulic System
Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
Hydraulic control unit:
All spool control valves externally mounted beside the hydraulic tank. Variable piston pump with capacity (Discharge flow) of 96.7 US gal/min 366 L/min for implement at rated engine rpm.
| Relief valve setting (for implement) | 4,322 psi | |
| Control valves: | ||
| Spool control valve for Semi-U tilt dozer and U tilt dozer. | ||
| Blade lift | Raise, hold, lower, and float | |
| Blade tilt | Right, hold, and left | |
| Additional control valve required for variable digging angle multi-shank ripper and giant ripper. |
||
| Ripper lift | Raise, hold, and lower | |
| Ripper tilt | Increase, hold, and decrease | |
| Hydraulic cylinders: Double-acting, piston |
Number of cylinders: | Bore: |
| Blade lift | 2 | 5.5 in |
| Blade Tilt (Single tilt) | 1 | 7.9 in |
| Blade Tilt (Dual tilt) | 2 | 7.9 in |
| Ripper lift | 2 | 7.9 in |
| Ripper tilt | 2 | 7.1 in |
| Hydraulic oil capacity (Refill): | ||
| Semi-U dozer or U dozer | 34.3 US gal | |
| Ripper equipment (Additional volume): | ||
| Giant ripper | 11.9 US gal | |
| Multi-shank ripper (variable) | 11.9 US gal |
TORQFLOW Transmission
Komatsu TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 1-phase torque converter with lockup clutch and a planetary gear, multiple-disc clutch transmission which is hydraulically actuated and force-lubricated for optimum heat dissipation. Gearshift lock lever and neutral safety switch prevent accidental starts.
| Gear | Forward | Reverse |
| 1st | 2.2 mph | 2.9 mph |
| 2nd | 4.2 mph | 5.5 mph |
| 3rd L | 5.0 mph | 6.0 mph |
| 3rd | 7.3 mph | 9.8 mph |
Steering System
| Minimum turning radius | 13 ft. 9 in |
Operating weight (approximate)
| Tractor weight Including rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment. |
124,210 lbs. |
| Operating weight Including strengthened dual tilt Semi-U dozer blade, giant ripper, 24" extreme service shoes, cab, ROPS (ISO 3471), operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.Including Semi-U tilt dozer, giant ripper, cab, ROPS, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank. |
161,840 lbs. |
| Ground pressure | 21.5 psi |
Undercarriage
| Suspension | Oscillating equalizer bar with shoulder pad and pivot shaft | |
| Track roller frame | Cylindrical, high-tensile-strength steel construction | |
| Rollers and idlers | Lubricated track rollers | |
| Komatsu Bogie (K-Bogie) undercarriage: | Lubricated track rollers are resiliently mounted to the track frame with a bogie suspension system whose oscillating motion is cushioned by rubber pads. |
|
| Extreme service track shoes: | Lubricated tracks. Unique seals prevent entry of foreign abrasives into pin to bushing clearances to provide extended service life. Track tension is easily adjusted with grease gun. |
|
| Number of shoes (Each side) | 41 | |
| Grouser height (Single grouser) | 3.7 in | |
| Shoe width (Standard) | 24 in | |
| Ground contact area | 7,527 in² | |
| Ground pressure (Tractor) | 16.4 psi | |
| Number of track rollers | 8 | |
| Number of carrier rollers | 2 | |
| Extreme service shoes: | Ground contact area: | Ground** pressure: |
| 24 in Additional weight: 0 lbs. |
7,527 in² | 21.5 psi |
| 28 in Additional weight: 1,500 lbs. |
8,760 in² | 18.6 psi |
| 32 in Additional weight: 3,000 lbs. |
9,994 in² | 16.5 psi |
** Ground pressure based on tractor, strengthened dual tilt Semi-U dozer blade, giant ripper, cab, ROPS, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.
- Air conditioner with heater and defroster
- Alternator, 140 Ampere, 24V
- Auto idle stop system
- Auto/manual gearshift selectable modes
- Auto pitch blade control
- Auto ripper return
- Back-up alarm
- Batteries, 2 x 12 V, 160Ah
- Blade lift cylinder, large capacity
- Blower cooling fan
- Canister style breathers
- Centralized greasing
- Blade cylinder yoke
- Ripper - Circuit breaker panel w/ push button resets
- Closed-center load sensing system (CLSS)
- Cold weather -30C specification
- Color monitor
- Concentrated sampling points
- Decelerator pedal
- Double wiper for cab door
- Dual tilt blade hydraulics
- Dry-type air cleaner with dust evacuator and dust indicator
- Eight-roller track frames
- Electrical dust indicator
- Engine precleaner w/ above the hood . air intake pipe
- Engine prelubrication system
- Exhaust pipe with rain cap
- Final drive case wear guard
- Heavy duty DT connectors
- High altitude arrangement
- High mount head lights
- Hinged underguards with front pull hook
- Horn, warning
- Hydraulic track adjusters
- Isolator box, battery and starter
- Jump start recepticle
- KOMTRAX Plus® with Iridium/Orbcomm
- Lighting system
- Access Lighting
- Engine room lamp
- LED lighting package
- High mount on hood (2)
- Front fender mount (2)
- Additional cab mount (4)
- Rear fender mount - (2) Ripper point light
- Lunch box holder
- Maintenance Service Center
- Mirror, rearview
- Oil level sensors (engine & hyd.)
- PCCS lever steering control
- Perforated side covers
- Platform with hand rails and toe boards
- PM service connectors
- Radiator, Mesabi (L&M)
- Radiator reserve tank
- Radio, AM/FM and AUX
- Rearview camera
- ROPS:*
- Weight: 1,280 lb
- Width: 6' 5"
- Height:** 6' 1" - Seat Air suspension type, heated and ventilated, fully adjustable, tilt and lumbar
- Seat belt, 3" retractable
- Segmented sprockets
- Starting motors, 24V
- Steering, clutch and brake
- Stop system, emergency (2)
- Swingout radiator fan
- TORQFLOW transmission, 3F/3R
- Torque converter with lock-up clutch
- Track frame, 8 track rollers, 2 carrier rollers
- Track roller guards
- Track shoe slip control
- Two muffler with rain cap
- Uninterrupted power source for 3rd party system
- Vandalism protection kit
- Wet steering clutches
- Wiggins Drains - Rear Maintenance Service Center for hyd. oil, eng. oil, T/M oil, and eng. coolant
- Wiggins fast fuel fill
* Meets ISO 3471 standards
** Compartment floor to ceiling
- Blade Semi-U Strengthened Dual Tilt
- Blade Full-U Strengthened Dual Tilt
- Counterweight: 10,441 lb
- Extreme service shoes
- 24"
- 28"
- 32" - Extreme service shoes w/ extreme cold link assemblies
- 24"
- 28" - General tool kit
- Optional tilt cylinder spacer kit
- Power ladder
- Short stroke tilt cylinder
- Spare parts for first service
- Straight frame assembly, dual tilt, less blade
Features and benefits
Lockup torque converter
Engineered for exceptional production. Komatsu’s lockup torque converter produces a more efficient transfer of power to the driveline, designed to help decrease cycle times and increase production.
Low undercarriage design
Equipped with a low drive undercarriage designed to help reduce wear and tear on your machine while still delivering comfort and stability. Minimal moving parts to help maintain high levels of traction and production when dozing and ripping.
Structural improvements
The D375A-8 features a more reliable mainframe with twice the design life over previous models, designed to reduce maintenance costs and machine downtime.
Blade auto-pitch
Designed to increase dozing efficiency while reducing operator efforts with blade auto-pitch mode.
Ripper auto-return
The new, ergonomic ripper control lever incorporates an auto-return function designed for less fatiguing operation, automatically raising the ripper after momentarily actuating the control lever while the machine is in reverse.
Track shoe slip control
Track shoe slip control automatically controls engine speed and minimizes slip during ripping operation, so your operator doesn’t have to.
Operator comfort
Designed to maximize operator comfort and productivity with thoughtful design enhancements like an upgraded cab suspension and palm control joysticks.
Single blade linkage
Significantly reduced blade side sway with an all-new blade support structure. The new support structure has fewer maintenance points with enhanced visibility over previous models.
Maintenance features
The D375A-8 is engineered to minimize planned downtime and make maintenance efficient with features such as centralized greasing points, ground-level fill/evac service center and battery and starter isolators with lockout tagout functionality.