Komatsu D39EX-21: Powerful Bulldozer Specifications

Komatsu D39EX-21 Specs

Overview

The Komatsu D39EX-21 is a powerful and reliable bulldozer designed for various construction and earthmoving applications. With its robust build and advanced features, this machine offers exceptional performance and productivity on the job site. Let’s take a closer look at its specifications.

Engine

The D39EX-21 is equipped with a Komatsu SAA4D102E-2 engine, delivering a net power of 105 horsepower (78 kW) at 2,200 rpm. This engine complies with EPA Tier 3 and EU Stage IIIA emission regulations, ensuring environmentally friendly operation.

Operating Weight

The operating weight of the D39EX-21 is approximately 20,830 pounds (9,450 kg), providing stability and balance during operation.

Blade Capacity

This bulldozer features a straight tilt blade with a capacity of 3.4 cubic yards (2.6 cubic meters). The blade dimensions are 10’6″ (3,200 mm) in width and 3’4″ (1,000 mm) in height.

Dimensions

The D39EX-21 has an overall length of 13’5″ (4,090 mm), a width of 7’6″ (2,290 mm), and a height of 9’7″ (2,930 mm) to the top of the ROPS canopy. The ground clearance is 1’4″ (410 mm), allowing for smooth maneuverability over uneven terrain.

Undercarriage

The undercarriage of the D39EX-21 consists of a track shoe width of 20″ (500 mm) and a track gauge of 5’1″ (1,550 mm). The standard track length on the ground is 7’7″ (2,310 mm), providing stability and traction.

Speed

The maximum forward travel speed of the D39EX-21 is 5.0 mph (8.0 km/h), while the maximum reverse travel speed is 5.6 mph (9.0 km/h). This allows for efficient movement on the job site.

Fuel Capacity

With a fuel tank capacity of 38.8 gallons (147 liters), the D39EX-21 can operate for extended periods without the need for frequent refueling.

Conclusion

The Komatsu D39EX-21 is a reliable and powerful bulldozer that offers impressive performance and productivity. With its advanced features, robust build, and precise engineering, this machine is well-suited for a wide range of construction and earthmoving tasks. Whether you’re working on a small or large project, the D39EX-21 is a dependable choice that will get the job done efficiently and effectively.

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Adam

An engineer with 20 years of experience. Passionate about construction, mechanisms and heavy construction machines

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