D37i-23 & D39i-23 Crawler Dozers

The D37EXi/PXi-23 and D39EXi/PXi-23 intelligent Machine Control crawler dozers feature fully automatic blade control for finish grading and rough dozing. The dozers incorporate proprietary engine and hydrostatic transmission pump control technology to improve operational efficiency, increase productivity up to 4% and reduce fuel consumption lower than a conventional HST control system

• Selectable dozing modes to tailor machine operation for optimized performance
• Blade load settings are adjustable between pre-sets to match actual material conditions
• PAT blade with durable box structure and curvature
• Standard adjustable blade pitch
• Two working modes: Economy and Power (fuel consumption reduced by up to 10% in P mode in demanding working conditions and up to 20% in E mode under lighter load conditions compared to previous models)
• Improvement in combination rough dozing efficiency is up to 9% higher compared to add-on machine control systems
• Factory-installed cab top Global Navigation Satellite System (GNSS) antenna, enhanced inertial measuring unit and stroke sensing hydraulic cylinders
• Tier 4 Interim 89- or 105-hp engines; 2,200 rpm
• Variable Flow Turbocharger, direct flow air filter, high pressure common rail fuel injection, 16-valve cylinder head and exhaust gas recirculation
• Long track-on-ground standard (EX) and low ground pressure (PX) models
• KOMTRAX fleet monitoring system
• 7-in. high-resolution LCD color monitor in cab
• Komatsu Diesel Oxidation Catalyst
• Operating weights: 18, 872 to 21,848 lbs.

Video: Why Komatsu's Grade Control is More Productive than Add-On GPS Systems