Model DX300LC
Type Crawler Excavator
Weight Operation 25 500 kg
Bucket (SAE HEAPED)  0.80 ~ 1.75 m3
Engine Rated Power (SAE j1349, net) SAE J1349, net 147 kW (197 HP) @ 1 900 rpm
Brand Doosan
Country of Manufacture Korea
Location Viet Nam


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Be part of the great Doosan family


The Doosan Group - founded in 1896 and headquartered in Seoul, South Korea - is one of the fastest-growing companies in the world:


- With more than 37,500 employees in 38 countries, we are a major player in a variety of industries worldwide.


- A global leader in the Infrastructure Support Business (ISB), with 56 subsidiaries and 3,700 distributors worldwide.


- Dramatic growth over the past two decades, with an annual Doosan Group revenue rising from €2.4 billion in 1998 to €12.8 billion in 2016


Doosan Group – a top player worldwide


Máy đào bánh xích Doosan DX140LC-5


- Doosan Infracore: Among the world's Top 5 manufacturers of construction equipment


- Doosan Bobcat: A leading company in the design, manufacture, marketing, distribution and service of small equipment and attachments for construction, agriculture, and landscaping. Leading position in the global compact equipment market. N° 1 in North America for SSL, CTL and MEX. 


- Doosan Heavy Industries & Construction: World N° 1 in desalination plant construction, World N° 1 in heat recovery steam generator market, World N° 1 in mould & tool steel, World N° 3 in crankshafts


- Doosan Engineering & Construction: A pioneering leader in construction of residential and public buildings, civil works and industrial facilities. World N° 1 chemical process equipment products


Máy đào bánh xích Doosan DX140LC-5


Doosan Infracore Construction Equipment


Creating construction equipment for over 40 years. For over 40 years, we've been building a global production and business network to become one of the world’s foremost construction equipment manufacturers.


A solid partner, close to you. A truly global player in every respect, we have large-scale factories, sales subsidiaries and dealers all over the world.


From machine manufacturer... to full solution provider


To ensure the highest trade-in and residual values, our parts and service support professionals maintain the performance, productivity and reliability that you expect of our products throughout their lifetime.


Ask your dealer for a full range of services designed especially for you!


As your local specialist, your dealer ensures that you receive the maximum benefit from our integrated package. Plan ahead to ensure the success of your equipment!


Experience the Doosan product range!


Máy đào bánh xích Doosan DX140LC-5


- Articulated Dump Trucks


- Doosan Wheel Loaders


- Doosan Wheeled Excavators


- Doosan Mini Excavators


- Doosan Crawler Excavators.




Máy đào bánh xích Doosan DX140LCR


Máy đào bánh xích Doosan DX140LCR


Máy đào bánh xích Doosan DX140LCR




Máy đào bánh xích Doosan DX140LCR






The new DX300LC hydraulic excavator has all the advantages of the previous model, and now offers additional added value to the operator. The new DX300LC was developed with the concept of “providing optimum value to the end user.” In concrete terms, this translates, into:


Increased production and improved fuel economy is attributed to the electronic optimization of the hydraulic system and the new generation DOOSAN engine (Tier Ⅲ / Stage Ⅲ). Improved ergonomics, increases comfort and excellent all round visibility ensuring a safe and pleasant working environment.


Improved reliability is achieved through the use of high performance materials combined with new methods of structural stress analysis, and leads to increased component life expectancy, thus reducing running costs. Reduced maintenance increases the availability and reduces operating costs of the excavator.




The hydraulic excavator's power, durability, ease of servicing and its precise control increase its effectiveness and life expectancy. With the DX300LC, DOOSAN offers an excellent return on investment. Choice of operating modes.


Working mode


- Digging mode: for general excavation, loading, lifting...


- Trenching mode: swing priority for trench work, canal digging, embankments...


Power mode


- Standard: uses 85% engine power for all work (optimum fuel efficiency)


- Power: uses 100% engine power for heavy work


Operation modes


- Mode selection


- Flow rate control


- Auto deceleration


- Display selection


Warning lights


Control lever


Very precise control of the equipment increases versatility, safety and facilitates tricky operations requiring great precision. Leveling operations and particularly the movement of suspended loads are made easier and safer. The control levers have additional electrical buttons for controlling other additional equipment (for example, grabs, crushers, grippers, etc.)




The work rate of the hydraulic excavator is directly linked to the performace of its operator. DOOSAN designed the DX300LC by putting the operator at the centre of the development goals. The result is significant ergonomic value that improves the efficiency and safety of the operator.


More space, better visibility, air conditioning, a very comfortable seat... These are all elements that ensure that the operator can work for hours and hours in excellent conditions.


Control panel


Correct positioning with clear controls makes the operator’s task easier.


The high performance air conditioning provides an air flow which is adjusted and electronically controlled for the conditions. Five operating modes enable even the most demanding operator to be satisfied.


Audio Button


Audio Button has been positioned in a way that the driver can turn on/off the radio, control the volume, and select a channel conveniently


Air suspension seat (Opt.)


Equipped with various functions of adjustment forth and back and, and lumbar support, it reduces the vibration of equipment transmitted during work in an effective way. Also for considering winter working environment, Seat warmer functions equipped.




The performance of the DX300LC has a direct effect on its productivity. Its new "Common Rail" engine and new e-EPOS controlled hydraulic system have combined to create an unbeatable hydraulic excavator, with a cost/performance ratio that makes the DX300LC even more appealing.


At the heart of the hydraulic excavator is the new “Common Rail” DOOSAN DL08 engine. It is combined with the new e-EPOS electronic control system, for optimum power and fuel saving. The new engine produces 197 hp(147 kw/200 PS) at only 1,900 rpm, and more torque, due to its careful design combined with the use of common rail injection and 4 valves per cylinder. These features help optimize combustion and minimize pollution through reduced Nox & particulate emissions. Increased torque allows efficient use of the power of the hydraulic system.


- Faster working cycles increase productivity.


- Increased torque means the excavator is able to move more easily.


- Energy efficiency reduces fuel consumption.


DOOSAN infracore is aware of the importance of protecting the environment. Ecology was uppermost in the minds of the research workers right from the start of the design of the new machines. The new challenge for the engineers is to combine the protection of nature with equipment performance and to this end DOOSAN has been investing heavily.


The new DOOSAN engine respects and protects the environment, limiting all types of toxic emissions.


Hydraulic Pump


The Main pump has a capacity of 2x247 l/min reducing cycle time while a high capacity gear pump improves pilot line efficiency.


Swing drive


Shocks during rotation are minimized, while increased torque is available to ensure rapid cycles.


New e-EPOS system (Electronic Power Optimizing System)


The brains of the hydraulic excavator, the e-EPOS, have been improved and now can electronically link to the engines ECU (Electronic Control Unit), through a CAN (Controller Area Network) communication link, enabling a continuous exchange of information between the engine and the hydraulic system. These units are now perfectly synchronised. The advantages of the new e-EPOS impacts at several levels, Ease of operation and user-friendliness:


- The availability of a power mode and a normal operating mode guarantee maximum efficiency under all conditions.


- Electronic control of fuel consumption optimizes efficiency.


- The automatic deceleration mode enables fuel saving.


- Regulation and precise control of the flow rate required by the equipment are available as standard.


- A self-diagnosis function enables technical problems to be resolved quickly and efficiently.


- An operational memory provides a graphic display of the status of the machine.


- Maintenance and oil change intervals can be displayed.




The reliability of an item of plant contributes to its overall lifetime operating costs. DOOSAN uses computer-assisted design techniques, highly durable materials and structures then test these under extreme conditions. Durability of materials and longevity of structures are our first priorities.


Strengthened Boom


The shape of the boom has been optimized by finite elements design, allowing uniform load distribution throughout the structure. This combined with increased material thickness means improved durability and reliability by limiting element fatigue.


Arm Assembly


In the arm assembly greater strength has been gained by using cast elements and reinforcement around the bosses to give it an increased lifetime.




The X-chassis frame section has been designed using finite element and 3-dimensional computer simulation, to ensure greater durability and optimum structural integrity. The swing gear is solid and stable.


D-type Frame


The D-type frame design adds strength and minimizes distortion due to shocks.




Highly wear-resistant materials are used for the most susceptible elements such as the blades, teeth, rear and lateral reinforcement plates and corners of the bucket.




A highly lubricated metal is used for the boom pivot in order to increase the lifetime and extend the greasing intervals to 250 hours. A rolled bushing with very fine grooves has been added to the arm bucket pivot; so greasing is only required every 50 hours.


Ultra-hard wear-resistant disc


New materials have been used in order to increase the wear resistance and to increase the service intervals. The longevity is greatly increased by the addition of wear plates on the inside and outside of the bucket lugs.


Integrated Track Spring and Idler


The track spring and the idler have been joined directly to achieve high durability and improved maintenance convenience.




The chain is composed of selflubricating sealed links isolated from all external contamination. The tracks are locked by mechanically bolted pins.


Polymer shim


A polymer shim is added to the bucket pivot to promote extended pin and bushing life.


Pump coupling


A polymer material is used to produce the coupling between the pump and engine. This material has a long life and reduces noise and vibration levels.




Short maintenance operations at long intervals increase the availability of the equipment on site. DOOSAN has developed the DX300LC with a view to high profitability for the user.


Engine oil filter


The engine oil filter offers a high level of filtration allowing the oil change interval to be increased to 500 hours. It is easy to access and is positioned to avoid contaminating the surrounding environment.


Easy maintenance


Access to the various radiators and coolers is very easy, making cleaning easier. Access to the various parts of the engine is from the top and via side panels.


Hydraulic oil return filter


The protection of the hydraulic system is more effective, using glass fiber filter technology in the main oil return filter. This means that with more than 99.5% of foreign particles filtered out, the oil change interval is increased.


Air cleaner


The large capacity forced air cleaner removes over 99% of airborne particles, reducing the risk of engine contamination and making the cleaning and cartridge change intervals greater.


Fuel filter


High efficiency fuel filtration is attained by the use of multiple filters, including a fuel pre-filter fitted with a water separator that removes most moisture from the fuel.


PC Monitoring (DMS)


A PC monitoring function enables connection to the e-EPOS system, allowing various parameters to be checked during maintenance, such as pump pressures, engine rotation speed, etc. and these can be stored and printed for subsequent analysis.


Convenient Fuse Box


The fuse box is conveniently located in a section of the storage compartment behind the operator's seat providing a clean environment and easy access.


Centralized grease inlets for easy maintenance


The arm grease inlets are grouped for easy access.



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