Used 2009 KOMATSU D39EX-21 Crawler Dozer for Sale
In Houston, the local and international accreditation bodies have defined clear safety measures and codes for heavy construction and earthmoving tasks. In challenging terrain, the incidents of machine tripping and rollovers are considerable. Crawler dozers are fortified with a robust track-based design to provide excellent traction and stability. For unmatched power and precision of a used 2009 KOMATSU D39EX-21 crawler dozer for sale, contact Mico Equipment.
Indeed, the KOMATSU D39EX-21 dozer is compact yet purpose-built to uphold rugged construction sites. This model is fortified with a Komatsu SAA4D107E-1 engine with a four-cylinder, delivering 105 horsepower to push and grade heavy materials. D39EX-21 offers fuel efficiency and advanced hydraulic systems for responsive blade control. Moreover, it has a unique hydrostatic transmission for flawless maneuverability.
Advantages and Features of D39EX-21 Crawler Dozer
The used KOMATSU crawler dozers for sale are cost-effective and reliable for surface leveling over sloppy and tight spaces. D39EX-21 offers a range of technical features to deliver precise and efficient earthmoving. Thus, it is categorized as a mid-size dozer.
Komatsu SAA4D107E-1 Engine
| Engine Type & Power | It is powered by a 4.5-liter four-chambered Komatsu engine that produces 105 horsepower. This powerful motor can push an enormous number of materials. |
| Fuel Efficiency | This crawler dozer is designed with Tier 3 emissions technology, which minimizes fuel usage and gaseous emissions. This results in lower running costs and greener operations. |
| Cooling System | The huge parallel-to-one radiator and hydraulic cooler are incredibly effective. They maintain appropriate operating temperatures even under extreme conditions. Moreover, it increases engine life and performance. |
Precise Hydrostatic Transmission
| Enhanced Maneuverability | Hydrostatic transmission (HST) provides autonomous control of the left and right tracks. It will facilitate unusual maneuverability over rugged terrain. |
| Variable Speed Control | With variable speed control, operators accurately manage the dozer’s speed, which complements the workload demands. This approach offers precision while minimizing engine strain. |
| Smooth Directional Shifts | The HST provides for seamless forward and reverse shifting. It is essential for applications requiring frequent repositioning, typically grading over sloppy terrains. |
Responsive Blade Control
| Hydraulic Blade Control | used a 2009 KOMATSU D39EX-21 crawler dozer for sale with a highly responsive hydraulic system. It supports precise movement of blades, assuring shortened and uninterrupted processes. |
| Power Angle Tilt (PAT) Blade | This blade can move and tilt at various angles and is 10 feet wide in measurement. Thus making it ideal for challenging earthmoving and grading projects. Moreover, the tilt angle is 25 degrees to work over hilly terrains. |
Undercarriage and Track Design
| EX Undercarriage Model | Obviously, the ex-undercarriage version is intended for stability, with a larger footprint and lower ground pressure. |
| Track System | D39EX-21 has a 22-inch-wide track shoe with durable material and stronger track links and rollers. This reliability decreases maintenance frequency and assures longevity. Track shape is handy in loose, sandy, or muddy areas. |
| Minimal Ground Pressure | This crawler dozer has the most minor ground disturbance with 5.7 psi ground pressure. Therefore, it suits sensitive terrain management, including landscaping and pipeline installation. |
High-Visibility Operator Cab
| Visibility & Ergonomics | The used crawler dozers from Komatsu have comfortable cabs that give drivers a great view of the blade surface and surroundings. |
| Operator Comfort | An intuitive control arrangement and customizable seat reduce worker fatigue and increase productivity. Climate management options improve operator comfort and focus in varying weather situations. |
| Komtrax Monitoring System | Indeed, a remote monitoring system enables real-time evaluation of dozer engine performance, fuel consumption, and maintenance requirements. |
Durability and Maintenance Advantages
| Robust Build | The D39EX-21 is constructed with Komatsu’s finest metal parts. The dozer chassis can endure high-stress situations, making it ideal for extensive use. |
| Easy Access for Maintenance | The side-mounted combustion chamber and standardized service points simplify periodic servicing. It reduces downtime and keeps the unit in excellent condition. |
KOMATSU D39EX Reliability and Adaptability for Diverse Projects
The Used 2009 KOMATSU D39EX-21 crawler dozer for sale provides remarkable reliability and efficiency over a wide range of construction sites. Mico Equipment offers quality-tested products with professional customer support. It’s a versatile mid-size structure, and advanced engineering performs various tasks.
- Land Clearing and Site Preparation
The D39EX’s Hydrostatic Transmission ensures seamless operation and exact blade modifications. Thus making it excellent for clearing trees, flattening terrain, and planning construction sites. Its L-shaped pusher arms improve blade visibility, allowing the operator to operate closer with more precision.
- Road Building and Maintenance
Remarkably, the Komatsu crawler dozer’s strong blade and high-traction axle are effective for road construction and maintenance. The dozer’s minimal ground pressure reduces compacted soil. It will protect the strength of foundations in roadbeds and improve overall construction quality.
- Slope and Embankment Work
The machine’s mid-sized chassis and equilibrium features enable it to navigate moderate slopes. Notably, it is deployed over gardening, trench leveling, and drainage systems. The Komatsu Terrain Controller aids the dozers to optimize equal weight distribution to prevent slippage.
- Mining and Quarrying
The D39EX is widely utilized for waste removal, curve surface grading, and access road management in mining operations. Its power and traction tackle harsh quarry conditions well. Moreover, its cab structure keeps the operator safe in high-debris settings.
- Landfill and Waste Management
With appropriate protection packages, the Komatsu used crawler dozers for sale to conduct safe landfill management. Operators compact garbage and manage dirt layers. Its flexible undercarriage and substantial ground clearance keep trash from clogging the tracks. Hence, it maintains effectiveness even in high-waste-density areas.
Modifications for Enhancing Used D39EX-21 Crawler Dozer Efficiency
When you’re looking to improve the performance and efficiency of the D39EX-21 Crawler Dozer, there are a variety of aftermarket modifications, and Komatsu-approved improvements are available. These upgrades increase the machine’s functionality and improve overall productivity.
3D GPS Blade Control Systems
Retrofitting the D39EX-21 with a Topcon 3D-MC GPS blade control improves grading efficiency and accuracy. The GPS communicates with sensors to give real-time blade positioning and adjustment. This enables fewer passes to meet targets. The semi-automatic blade automatically empowers the dozer to modify cutting height and angle for predefined grade criteria. This can significantly minimize worker fatigue and learning time. However, maintaining consistent results is valuable for precision finishing work.
Engine Upgrades for Fuel Efficiency
Upgrading the D39EX-21s with appropriate diesel particulate filter (DPF) control emissions improves its environmental profile. DPFs catch pollutants before they escape the exhaust. They are resulting in improved air quality and compliance with Tier 4 requirements. Some filters also improve fuel efficiency by resulting in a cleaner combustion cycle.
Customizing the Komatsu SAA4D107E-1 engine can increase horsepower and gasoline economy. Furthermore, it improves operational efficiency for heavy-duty operations. Tuning can change injecting time to boost fuel burn and improve engine performance.
High-Flow Hydraulic System for Responsiveness
Using a high-flow hydraulic pump helps blade response time and overall fluidity. Precise-flow pumps improve the hydraulic system’s effectiveness and faster blade adjustments. It is applicable for high precision over intricate landscaping. Auxiliary hydraulics to increase attachment versatility, including rippers, lifts, and specialist blades. This improvement increases the dozer’s adaptability. It allows it to perform jobs other than typical grading and earthmoving.
Undercarriage Modifications for Versatility
Upgrading the traditional 22-inch track shoes with larger ones will lower ground pressure. This is a valuable tactic for working on soft, slippery, or fragile terrains. This modification improves floating, allowing the dozer to run efficiently without causing undue ground disturbance.
In harsher situations, powerful track rollers and strengthened chains are used. They can be fitted to increase the life of the undercarriage, particularly in hilly or sandy terrains. These parts are built of hardened steel to tolerate excessive wear and tear. This used 2009 KOMATSU D39EX-21 crawler dozer is for sale.
Cab Comfort and Control Enhancements
Replacing the dozer cab seat with modern ergonomics sitting and temperature control helps to increase work efficiency. Likewise, automatic joystick-assisted hydraulic controls are critical for precise maneuvering. Upgraded HVAC systems guarantee the cab is pleasant regardless of the outside weather. Enhanced acoustics reduce noise, permitting work with fewer distractions. This is particularly useful in high-noise conditions or over extended operational hours.
Komtrax Remote Monitoring Upgrades
Integrating the latest Komtrax telematics system gives customers more precise data on fuel usage, functional hours, and part wear. They are updated to track idle duration and fuel usage in real time. This knowledge helps operators modify and minimize idle time to improve fuel efficiency. Tracking these parameters is especially useful for contractors to keep fuel expenditures to a minimum.
Attachments for Expanding Functionality
D39EX-21 expands its capabilities for demolition and removing hard ground surfaces. Rippers are perfect for tearing compacted and old pavement. Likewise, a winch attachment adds pulling strength to the D39EX-21, making it ideal for clearing fallen trees. This improvement is especially useful in rural or off-road settings when carrying large objects requires more force.
Radiator and Cooling System Upgrades
A high-capacity radiator can operate in hot surroundings and be used for heavy-duty purposes without overheating. Refined cooling technologies keep the combustion temperature steady, extending engine life. Using variable-speed controls to mitigate engine heat production. This allows the D39EX-21 to function in demanding situations, reducing the risk of overheating.
Quality Tested Used Crawler Dozer Near Me
Invest in the used 2009 KOMATSU D39EX-21 Crawler Dozer for sale, combining strength, efficiency, and versatility. With the option for various aftermarket improvements, this model is adaptable for modern construction, grading, and earthmoving business.
Mico Equipment provides high-quality secondhand construction machinery for sale in Houston, TX, to assure top performance. Contact us to learn more about upgrading your company with dependable and powerful machinery.
