The Komatsu D39 dozer is a powerful and fuel-efficient machine suitable for grading and dozing operations. It features a hydrostatic transmission, dual-path closed-circuits, and hydrostatic steering. The cab mount has a damper system for comfort. The PPC-controller joystick and Komatsu hydraulic system provide precise blade control. The D39-22 dozer has a heavy-duty undercarriage with large links, bushing diameter, and wider sprocket teeth for longer life. The D39 is built to last by reducing component complexity and employing a strong modular design. The Komatsu D61 dozer is a powerful and reliable option for moving large amounts of dirt, sand, or rock. It is known for its toughness and dependability.
Komatsu D39 Specs
When we created the specs for the D39 Komatsu dozer, we looked at two models. These are D39EX-22 and D39PX-22 dozers. Let’s get right to the Komatsu D39 dozer specs so we don’t waste any more time.
Brand | Komatsu |
Model | D39EX-22 D39PX-22 |
Type | Crawler dozer |
Years Made | 2009-2016 |
Engine
Brand | Komatsu |
Model | SAA4D107E-1 |
Type | Diesel, water-cooled |
No. of Cylinders | 4 |
Emissions | Tier 3 / Stage 3A |
Aspiration | Turbocharged air-to-air aftercooled |
Combustion | Direct injection |
Governor | All-speed, electronic |
Rated Power | 2200 RPM |
Specs | US | Metric |
---|---|---|
Horsepower – Gross | 107 HP | 80 kW |
Horsepower – Net | 95 HP | 71 kW |
Displacement | 272 cu in. | 4457 cc |
Bore | 4.2 in. | 10.7 cm |
Stroke | 4.9 in. | 12.4 cm |
Weight
US | Metric | |
---|---|---|
Operating Weight – D61EX-23 | 19,930 lbs | 9.040 kg |
Operating Weight – D61PX-23 | 20,900 lbs | 9,480 kg |
Tractor Weight – D61EX-23 | 17,196 lbs | 7,800 kg |
Tractor Weight – D61PX-23 | 17,990 lbs | 8,160 kg |
Ground Pressure – D61EX-23 | 5.9 psi | 40.7 kPa |
Ground Pressure – D61PX-23 | 4.2 psi | 29.0 kPa |
Transmission
Transmission | Hydrostatic (HST) |
No of Gear | 3 forward 3 reverse |
Travel Speed
US | Metric | |
---|---|---|
Max. Travel Speed (3rd forward) | 5.3 mph | 8.5 km |
Max. Travel Speed (3rd reverse) | 5.3 mph | 8.5 km |
Variable Mode | 5.3 mph | 8.5 km |
Hydraulic System
Type | Closed-center load sensing system (CLSS) |
Pump | Piston-type hydraulic pump |
US | Metric | |
---|---|---|
Pump Flow | 26.2 GPM | 99 LPM |
System Relief Pressure | 3983 psi | 274 Bar |
Dimensions
US | Metric | |
---|---|---|
O/A Height | 112 in. | 284 cm |
O/A Lenght | 171 in. | 434 cm |
Width Over Track – D61EX-23 | 83 in. | 211 cm |
Width Over Track – D61PX-23 | 96 in. | 243 cm |
Turning Radius – D61EX-23 | 87 in. | 220 cm |
Turning Radius – D61PX-23 | 95 in. | 240 cm |
Undercarriage
Tracks | Lubricated, fully sealed |
Suspension | Rigid type |
Number of Shoes | 46 |
Track Rollers (each side) | 8 |
US | Metric | |
---|---|---|
Shoe Width – D61EX-23 | 16 in. | 40 cm |
Shoe Width – D61PX-23 | 25 in. | 64 cm |
Grouser Height | 2.1 in. | 5.3 cm |
Capacity
US | Metric | |
---|---|---|
Cooling Capacity | 6.1 gal | 23 L |
Fuel Tank Capacity | 52 gal | 195 L |
Engine Oil Capacity | 4 gal | 15 L |
Hydraulic Tank | 16 gal | 60 L |
The Komatsu D39-22 dozer is notable for its efficiency, durability, and ease of operation. Users of the D39 Komatsu are generally pleased with the powerful engine, precise control system, good maneuverability, and ease of use. In addition, the Komatsu D39-22's fuel efficiency, operator comfort, ease of maintenance, and reliability also stand out.
Some users, however, have expressed reservations about the Komatsu D39's high price, narrow operator's cabin, and noisy operation. Those looking for an alternative should consider the Komatsu D37 and Cat D5.Komatsu D39 Review
Engine
Fuel Efficiency
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The information presented here will help you decide if this product is the best fit for your situation. Though we do our best to provide all the information you need, things can always change. So be sure to do your own research before purchasing a vehicle, because the information in this review may become outdated over time. If you would like exact details, please contact the vendor directly. If you need Komatsu D39 manual, please specify by commenting.