Komatsu D65 Medium Dozer
Information
Additional information
| Make | |
|---|---|
| Model | D65, D65EX-18, D65EXi, D65EXi-18 |
| Weight | 20t |
Equipment Overview
The Komatsu D65 is a medium dozer built for high-production dozing and grading, part of Komatsu’s -18 series crawler dozer range for the Australian and New Zealand market. It has 162 kW (217 hp) of net power, an operating weight of 21,270 kg, and a 5.61 m³ semi-U blade in standard configuration, suited to civil construction, quarrying, and general earthmoving where blade capacity and undercarriage durability matter.
Power comes from the Komatsu SAA6D114E-6 engine, a 6-cylinder, 8.85-litre unit with a variable geometry turbocharger and air-to-air aftercooling; Komatsu markets the current -18 series as meeting U.S. EPA Tier 4 Final and EU Stage V emission standards, using a combined SCR and diesel particulate filter aftertreatment system. Steering is hydrostatic (HST), eliminating steering clutches and brakes for smooth, powerful turns, and the Parallel Link Undercarriage System (PLUS) uses rotating bushings to cut undercarriage maintenance costs by up to 40%. A multi-shank ripper is available for scarifying compacted ground.
Technical Specifications
| Specification | Value |
|---|---|
| Engine | Komatsu SAA6D114E-6, 8.85 L, 6-cylinder, variable geometry turbocharged, air-to-air aftercooled |
| Power Output | 162 kW / 217 hp (net, ISO 9249/SAE J1349 @ 1,950 rpm) |
| Emission Standard | U.S. EPA Tier 4 Final / EU Stage V |
| Transmission | Komatsu TORQFLOW (lock-up torque converter with planetary gear, multiple-disc clutch), 3F/3R |
| Drive Type | Hydrostatic (HST) steering, no steering clutches or brakes; PCCS joystick control |
| Operating Weight | 21,270 kg (D65EX-18, Semi-U blade, standard track) |
| Blade Capacity | 5.61 m³ (Semi-U, standard) |
| Blade Width | 3,470 mm (Semi-U, standard) |
| Ground Pressure | 44.1 kPa (with dozer and ROPS cab) |
| ROPS / FOPS | ISO 3471 / ISO 3449 |
Dimensions
| Dimension | Value |
|---|---|
| Overall Length (with dozer, Semi-U blade) | 5,330 mm |
| Width (across tracks) | 1,880 mm |
| Height | 3,160 mm |
| Ground Clearance | 415 mm |
| Minimum Turning Radius | 1.9 m (pivot turn, measured by track marks) |
Typical Applications
- Civil construction earthmoving and site development
- Quarry and aggregate face and stockpile work
- Road and infrastructure subgrade construction
- Fine grading with intelligent Machine Control (iMC) variants
- Land clearing and general earthworks
