- 68,165 lbs Operating Weight
- 264 @1900 rpm Horsepower
- 9.4 yd³ Blade Capacity
The new D85EX-18 with a powerful 11 liter Tier 4 Final emission engine is equipped with a large capacity power-pitch SIGMADOZER® blade and automatic shift transmission for maximum productivity while consuming less fuel than the prior model. Well balanced and designed for superb visibility, the operator will be comfortable and productive for many hours while seated in the roomy and quiet cab equipped with an air suspension seat, bright color monitor and rear view camera.
Battery Disconnect Switch
A standard battery disconnect switch allows a technician to disconnect the power supply before servicing the machine.
Comfortable Ride with New Operator Seat and Cab Damper Mounting
The new operator seat is equipped with lumbar support, a tilting adjust function and electric heater. It is easy to adjust to the operator's shape and various working conditions and provides comfortable operation. The standard heated seat makes it possible to work comfortably in the winter.
Easy Access DEF Tank
Located at the right side of the fuel tank, and is accessible from ground level. A convenient sight gauge is also provided.
Heavy-duty aftertreatment system
This new system combines a Komatsu Diesel Particulate Filter (KDPF) and Selective Catalytic Reduction (SCR). The SCR NOx reduction system injects the correct amount of DEF at the proper rate, thereby transforming NOx into non-toxic water (H2O) and nitrogen gas (N2).
Integrated ROPS Cab
The D85EX/PX-18 has a strong integrated ROPS cab. High rigidity and superb sealing sharply reduce noise and vibration for the operator and minimizes dust that enters the cab. This provides the operator a comfortable working environment. Also, there is more side visibility because an additional external ROPS structure and posts are not required.
Komatsu Auto Idle Shutdown
Komatsu auto idle shutdown automatically shuts the engine down after idling temporarily to reduce unnecessary fuel consumption and exhaust emissions. The amount of time before the engine is shutdown can be easily programmed from 5 to 60 minutes.
Komatsu Variable Geometry Turbocharger (KVGT) system
The KVGT system features proven Komatsu design hydraulic technology for variable control of air-flow and supplies optimal air according to load conditions. The upgraded version provides better exhaust temperature management.
New Fuel Efficient Bulldozer
The new D85EX/PX-18 is both productive and fuel efficient with the SIGMADOZER® blade, automatic transmission and new Tier 4 Final engine. The SIGMADOZER® blade, based on completely new digging theory, dramatically increases production. This bulldozer significantly improves fuel efficiency compared to a conventional model.
New Tier 4 Final Engine
The Komatsu SAA6D125E-7 engine is EPA Tier 4 Final emissions certified and provides exceptional performance while reducing fuel consumption. Based on Komatsu proprietary technologies developed over many years, this new diesel engine lowers nitrogen oxides (NOx) and particulate matter (PM) by more than 90%, compared to Tier 3 levels. Through the in-house development and production of engines, electronics, and hydraulic components, Komatsu has achieved great advancements in technology, providing high levels of performance and efficiency in virtually all conditions.
Rear View Monitoring System
The operator can view directly behind the machine on the color monitor panel.
||4-cycle, water-cooled, direct injection|
||Komatsu variable geometry turbocharged, air-to-air aftercooled|
|No. of cylinders||
|Bore x stroke||125 mm x 150 mm||4.49" x 5.69"|
|Piston displacement||11.04 ltr||674 in³|
||All-speed and mid-range, electronic|
|SAE J1995 / Gross||199 kW||267 HP|
|ISO 9249 / SAE J1349* / Net||197 kW||264HP|
|Fan drive type||
||Gear pump, force lubrication|
|**EPA Tier 4 Final emissions certified||
Double-reduction final drive of spur and planetary gear sets to increase tractive effort and reduce gear tooth stresses for long final drive life. Segmented sprocket teeth are bolt-on for easy replacement. Triple labyrinth protects seals and improves durability.
|Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.||
|Hydraulic control units:||
|All spool valves externally mounted beside the hydraulic tank. Piston type hydraulic pump with capacity (discharge flow) of 331 ltr/min 87.4 U.S. gal/min at rated engine rpm.||
|Relief valve setting||22.6 MPa
|Spool control valves for SIGMADOZER®, semi-u tilt or straight tilt dozer||
||Raise, hold, lower, and float|
||Right, hold, and left|
||Raise, hold, and lower|
|Including ROPS cab, rated capacity of lubricant, hydraulic control unit, coolant, full fuel tank, operator, and standard equipment.||24390 kg||53,770 lb|
|Including SIGMADOZER® and fixed multi-shank ripper (EX) or straight tilt dozer and long drawbar (PX) ROPS cab, operator, standard equipment, rated capacity of lubricant, hydraulic control unit, coolant, and full fuel tank.||30920 kg||68,165 lb|
Service Refill Capacities
|Fuel tank||470 ltr||124.1 U.S. gal|
|DEF tank||23.5 ltr||6.2 U.S. gal
|Coolant||65 ltr||17.2 U.S. gal|
|Engine||38 ltr||10.0 U.S. gal|
||1.6 ltr||0.42 U.S. gal|
|Torque converter, transmission, bevel gear, and steering system||60 ltr||15.8 U.S. gal|
|Final drive (each side)||26 ltr||6.9 U.S. gal|
|Hydraulic oil capacity (refill):||69 ltr||18.2 U.S. gal|
|Ripper equipment (additional volume):|
|Multi-shank ripper||11 ltr||2.9 U.S. gal|
Palm Command Control System (PCCS) lever controls for all directional movements. Pushing the PCCS lever forward results in forward machine travel, while pulling it rearward reverses the machine. Simply tilt the PCCS lever to left to make a left turn. Tilt it to the right for a right turn.
Hydrostatic Steering System (HSS) is powered by steering planetary units and an independent hydraulic pump and motor. Counterrotation turns are also available. Wet, multiple-disc, pedal-controlled service brakes are spring-actuated and hydraulically released. Gear shift lock lever also applies parking brake.
|Minimum turning radius||2.00 m||6'6"|
Komatsu TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 1-phase and a planetary gear, multipledisc clutch transmission which is electronically controlled, hydraulically actuated and force-lubricated for optimum heat dissipation. Shift lock lever and neutral safety switch.
|3rd L||7.8 km/h
|Suspension||Oscillating equalizer bar and pivot shaft|
|Track roller frame||Monocoque, large section, durable construction|
|Rollers and idlers||Lubricated
|Track shoes||Lubricated tracks. Unique seals prevent entry of foreign abrasive material into pin to bushing clearances to provide extended service life. Track tension is easily adjusted with grease gun.|
|Number of track rollers (each side)||7|
|Type of shoes (standard)||Single grouser|
|Number of shoes (each side)||41|
|Grouser height||72 mm||2.8"|
|Shoe width (standard)||660 mm||26"|
|Ground contact area||40260 cm²||6,240 in²|
(with dozer, cab and ROPS)
|Track gauge||2000 mm||6'7"|
|Length of track on ground||3050 mm||10'|
- Air cleaner, double element with dust indicator
- Alternator, 90 ampere/24V
- Auto idle shutdown function
- Backup alarm
- Batteries, 200 Ah/2 x 12V
- Blade lift cylinders
- Color monitor, LCD
- Decelerator pedal
- Engine hood
- Engine intake centrifugal precleaner
- Engine, gull-wing side covers
- Exhaust pipe with raincap
- Front pull hook
- High mount foot rests
- Horn, warning
- Hydraulic driven radiator cooling fan with reverse clean mode
- Hydraulics for front attachment
--Single tilt, power pitch (EX SIGMADOZER only)
--Single tilt, manual pitch (non-SIGMADOZER)
- KOMTRAX® Level 5
- Komatsu Diesel Particulate Filter (KDPF)
- Komatsu Variable Geometry Turbocharger (KVGT)
- Locks, filler caps and covers
- Oil pressure check ports for power train
- Operator ID function
- PM service connector
- Radiator mask, heavy-duty, hinged, perorated
- Radiator reserve tank
- Rear cover
- ROPS cab**
- 75 dB operator ear noise level
- Air conditioner
- Cab accessories
--12V power supply (2 ports)
--Rear view monitoring (1 camera)
--AM/FM Radio w/remote AUX plug (3.5 mm)
- Work lights
--2 front, hood mounted
--2 front, cab mounted
--1 rear, left fender mounted
--2 rear, cab mounted
--1 ripper point (EX only)
- Seat, air suspension, fabric, heated low back, rotates 12.5° to right, headrest
- Seat belt, 76 mm 3", retractable
- Seat belt indicator
- Sealed electrical connectors
- Starting motor, 11.0 kW/24V
- Steering system: Hydrostatic Steering System (HSS)
- Torque converter
- Track roller guards, center and end sections
- Track shoe assembly
- Heavy-Duty sealed and lubricated track
- 660 mm 26" extreme service single grouser shoe (EX)
- Transmission with auto/manual shift modes
- Underguards, heavy duty
- Hinged belly pan
- Water separator
- Wide core cooling package
* Dozer assembly and rear mounted equipment are not included in base machine standard equipment
** Cab meets OSHA/MSHA ROPS and FOPS Level 2 standards (ROPS standards ISO 3471, SAE J/ISO 3471; FOPS standards ISO 3449)
- Drawbar, long type
- SIGMADOZER® (EX)
- Semi-U (EX)
- Straight tilt frame for use with allied blades
- Trunnions for use with allied dozer assembly
- Track roller guard, full length
Multi-shank ripper (for D85EX)
2500 kg; 5,520 lb
- Beam length
2246 mm; 7'4"
- Maximum lift above ground
565 mm; 1'10"
- Maximum digging depth
655 mm; 2'2"