Doosan DX225LCA: technical specifications, review, description

The manufacturer of various special equipment Doosan uses only high-quality materials, modern innovative solutions and improved equipment in the process of creating its products. But during development, special attention is paid to comfort and safety during operation. Thanks to all this, the manufacturer managed to take a leading position in the markets and win the trust of customers and clients. Doosan 225 crawler excavator , which is designed mainly for performing all the necessary work related to loading and digging various soils.

Under the hood of the Doosan 225 is an advanced power unit of the DB58TIS brand. This engine is the manufacturer's own development. In addition to the main elements, it has the latest electronic control system, which has been named E-EPOS. The maximum power marked on the flywheel is 110.3 kilowatts or 150 horsepower.

In Russia, this excavator model has gained great popularity due to its fairly high performance characteristics, efficiency and reliability, which ultimately allows you to quickly recoup the money invested in purchasing the machine.

About the manufacturer

Doosan is a large South Korean chaebol (financial and industrial group). After joining the Doosan Group of Daewoo Heavy Industries & Machinery in 2005, chaebol began to actively develop in the construction equipment segment. So active that, having started with excavators and front loaders, the South Korean company Dusan is now one of the five largest global manufacturers of earthmoving and road construction equipment, competing with Caterpillar and Komatsu. Dozens of chaebol factories are located in South Korea, China, Europe, and the USA.

Ease of operation and maintenance

The handle of the Dusan 225 excavator has a strong and reliable fastening unit; it contains monolithic parts and reinforcement elements around the protruding parts. This makes it possible to use the mechanism for a longer period of time without the need to replace or repair parts.

To reduce downtime, extended service intervals are provided, and maintenance is carried out in the shortest possible time.

Transportation to the place of work

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Engine Doosan DB58TIS

A new Doosan DB58TIS power unit is installed in the center of the hydraulic excavator. This is a six-cylinder diesel engine with a displacement of 5,785 cc. cm, power 116 kW, or 157.8 hp. (at 2,200 rpm). The maximum torque is 603 N.m (61.5 kgf.m) at 1,400 rpm. Bore/Stroke: 102mm x 118mm. The weight of the Doosan DB58TIS engine is 480 kg.

Verdict

The main problem of domestic cars is reliability. This Korean Doosan allows you to work for a long time immediately after purchase. People from Igarka to the southern regions work on this model. It can be modified to suit any task.

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Doosan 225 hydraulic system

The hydraulic system of this excavator includes two axial piston pumps of variable displacement, as well as a gear pump of the control housing. The main pumps have a maximum flow rate of 2x206.5 l/min; the gear pump, which improves the efficiency of the control line, shows a maximum flow rate of 28.5 l/min.

The main operating device of the excavator hydraulic system is “e-EPOS” (electronic power optimization system). It allows you to optimize the efficient operation of the hydraulic system in any conditions, while simultaneously reducing diesel fuel consumption. The hydraulic system provides independent and combined types of operations. Two different travel speeds guarantee increased torque or high traction force.

The pumping system is equipped with sensor-based load control to save fuel. An automatic speed reduction system also works; flow control in additional equipment circuits. Pump control is computerized.

Maximum system pressure: normal mode: 330 kgf/cm2; power mode: 350 kgf/cm2. Stroke – 330 kgf/cm2, rotation: 270 kgf/cm2.

The piston rods and cylinder bodies are made of high-strength steel. All cylinders are equipped with hammerless mechanisms that provide shockless operation to increase cylinder life.

Power unit

The high characteristics of Dusan 225 are due to the installation of a powerful 5.8 liter DB58TIS engine of our own production. It is located in the center of the machine and is equipped with the innovative e-Epos system. This electronic control system has the following advantages:

• control over all equipment sensors, which ensures timely notification of the operator in the event of a breakdown or malfunction;
• monitors oil change and service intervals;
• sets fuel consumption depending on the operating mode;
• to reduce consumption, it is possible to reduce the rotation speed of the power plant;
• the presence of working memory, with the help of which complex tasks are quickly and effectively solved;
• selection of operating mode (standard or powerful), which ensures maximum performance.

The maximum engine power is 150 horsepower. Its weight is 480 kg. Fuel consumption of Doosan DX225LCA in standard operating mode is 163 g/hp. per hour of work . Engine speed is 2200 rpm. The diesel fuel tank holds 400 liters, which guarantees several hours of non-stop operation.

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Excavator frame and chassis

The X-shaped chassis frame section was designed using finite element methods and 3D computer simulation to ensure extended service life and optimal strength for the overall structure. The turning mechanism is very durable and stable. The D-shaped frame design increases strength and reduces the possibility of deformation during various types of impacts.

Wide caterpillar tracks are used in the design of the Doosan DX225LCA excavator chassis. This allows you to significantly reduce the overall pressure on the base. Dirt and dust are prevented from getting inside, thanks to the self-lubricating sealed track links. There are 49 shoes on each side; They are triple grouser and have a width of 600 mm, or 700, 800 and 900 mm. The shoes are made of double induction hardened rolled alloy. The track height is 947 mm; the gap between the caterpillar and the main body of the excavator is 480 mm.

Device

Excavator Dusan 225
The Doosan DX225LCA excavator is equipped with a high-strength boom mechanism. Its modeling was carried out using 3D technologies, which make it possible to calculate the structure using the finite element method. This guarantees rational distribution of forces in the boom sections. The second feature of Doosan 225 is the use of high quality materials that are reliable and durable.

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Modifications

There are two special modifications of this special technique:

• Doosan DX 225LCA SLR is a crawler excavator with an extended arm, which is convenient for leveling the bottom of reservoirs, digging pits of considerable depth, and demolishing high construction sites. Everywhere where it is impossible to perform the necessary actions using standard excavator working equipment. Due to the increase in the total length of the working mechanism, the tipping force also increases. The standard working body has a smaller volume than that of the standard Dusan 225 model.

• Doosan DX225LCA MH is a crawler excavator adapted primarily for metal loader applications. Its weight is slightly greater than that of a standard special vehicle, and the engine has slightly less power. Most often, this special equipment is used for loading operations using a grab working element, which is included in the standard assembly.

Features and Benefits

Features of the Dusan 225 excavator include the ability to select one of the standard operating modes:

• powerful. At the same time, the entire performance of the power plant is involved in performing complex tasks;
• standard. 85% of the engine power is used and is used for any work.

Excavator Doosan DX225LCA

The working body control systems are highly accurate, which guarantees the safety and ease of performing work of any complexity. The controls are equipped with buttons that control mounted working elements. This can be a grab, grab, crusher, etc. The handles of the Doosan 225 excavator contribute to the fast and high-quality movement of cargo in a raised bucket around the site, and also provide high breakout force without the need for additional effort.

The main advantages of the equipment include productivity, reliability, long service life, as well as a quick payback for the equipment.

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Doosan 225 excavator cabin

The performance of a hydraulic excavator directly depends on the condition of its operator. With this in mind, the model developers tried to create the most comfortable conditions possible for the Doosan DX225LCA operator. Provide it with significant ergonomic advantages that can increase operating efficiency and maintain all safety indicators at a decent level.

Compared to many of its classmates, the Doosan 225 cabin has more free space and almost perfect visibility. Air conditioning is provided as standard and the operator's seat is very comfortable. All this together allows the excavator operator to work for hours on end without serious fatigue.

The control of the working equipment is highly accurate, increasing its versatility. This is very important, in particular, to ensure safety when performing complex types of work that require precise “jewelry” execution. Leveling works; moving with a raised load on the Doosan 225 is easier and safer than on many analogues. The control levers are equipped with additional electric buttons for controlling non-standard equipment (except for backhoes for digging) - grabs, crushers, grippers, etc.

As additional options, the operator's seat can be equipped with air suspension, as well as an electric heating function. The ability to adjust forward and backward, good lumbar support throughout the day, effectively minimize the vibration load from the operation of any excavator attachment. Many shelves and niches - storage spaces - also have a positive effect on operator comfort. The basic cabin package also includes a sun visor, an opening lower windshield, convenient handrails for getting in and out of the cab, a color display, a rear view camera, a cigarette lighter and ashtray, and a thermos. To absorb vibrations created during operation, damping mounts are used when installing the cabin.

Operator's place

The Dusan 225 is equipped with an ergonomic modern cabin with advanced systems. The standard package now includes an air conditioning and ventilation system, which is responsible for maintaining a comfortable microclimate in the cabin. Controlled air ducts allow you to optimize the direction of air supply at a given temperature; 5 operating modes are used as standard.

An optional seat with air suspension is installed; in the basic assembly, the seat is not equipped with such an element. The seat is customizable to the driver’s individual characteristics - it can move along the length of the cabin, and the lumbar support is also adjustable. During operation, the Doosan DX225LCA excavator is subject to vibration; to reduce it, a pneumatic seat suspension is used. This chair is equipped with heating.

The cabin has compartments for things, and an audio recorder is installed. The characteristic features of the Doosan 225 excavator cabin include:

• rear view mirrors that ensure work safety;
• handrails for entering and exiting the cabin;
• thermos;
• lifting windshield at the bottom;
• sun visor;
• color monitor;
• ashtray and cigarette lighter;
• fastening elements with dampers that reduce vibrations in the cabin when the equipment is running.

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Standard working equipment

Serious strength of the handle block was achieved in Dusan 225 through the use of cast elements and reinforcements around the protrusions. These solutions have a positive effect on the reliability and increase in service life of the crawler excavator. The boom shape has been calibrated through finite element design to ensure that the load is evenly distributed across the entire excavator structure. These design features, combined with increased material thickness, provide increased durability and reliability - by reducing technical fatigue of components.

In addition to the main working tool - backhoes of various volumes, the following are also used as attachments for the Doosan DX225LCA excavator:

• Heavy construction bucket . This equipment is designed for large-scale excavation manipulations with high-density soils (such as, for example, compacted clay). It is also used when working with lump limestone, which contains a significant percentage of stones, crushed stone and gravel. The main areas of application for heavy buckets are large-scale construction of large facilities; laying highways and constructing road junctions.
• Special rock bucket for work with high loads. This element belongs to class “S” and is intended mainly for excavation work in areas such as mining, mines and quarries in rocky areas with rocky soils. The extremely high wear resistance is due to the very durable materials used in the manufacture of this type of bucket. Thanks to this, such a bucket can easily cope with soils of all density categories, with the exception of the fourth. The preliminary use of special loosening equipment is not required.
• Special rock bucket for extreme loads . This type of bucket belongs to class “X”. The main purpose of this bucket is to carry out excavation work with high-density soil (fourth category), without the intervention of loosening equipment. It is used in areas such as mineral deposits, large mines, large mining operations and quarries. It is made from the same materials as the “S” class rock bucket, but differs from it in an even more reinforced design with special wear-resistant linings.
• Hydraulic breaker . Designed for all types of dismantling work, for the destruction of concrete and (or) reinforced concrete structures. And also for carrying out repair work on roads and other areas - wherever it is necessary to destroy and crush old concrete and asphalt layers.
• Hydraulic chopping attachment . This equipment carries out both the initial dismantling process and subsequent concrete crushing work. This unit is able to cope not only with concrete, but also with reinforcement and steel profiles.
• Hydraulic mounted crusher . A modified version of the shredder. Performs crushing and knocking out concrete from stationary objects. To carry out the most accurate and efficient work, it is equipped with a special rotator.
• Hydraulic shears . Special equipment that is indispensable for certain types of dismantling work, namely for cutting steel profiles, fittings of various diameters, even railway rails. The rotator included in the design allows you to carry out the work process more accurately.
• Hydraulic multiprocessor . A more advanced variation of hydraulic shears. The purpose of this working body is the same - dismantling, however, unlike hydraulic shears, the multiprocessor is given the opportunity to install or replace different jaws for a precisely defined degree of load during operation.
• Hydraulic multi-grab . Special equipment that has the ability to replace installed jaw grips and is designed for sorting processed materials, as well as loading them.
• Multi-jaw grab equipment . Also used for sorting and loading of various materials. Often this equipment can be seen in action when recycling scrap metal. And it has four jaws that synchronously compress, and a rotator that allows the equipment to take the position required at one time or another.
• Double jaw bucket . This type of equipment is applicable for loading various materials, primarily bulk materials: soil and crushed stone, sand and screenings, grain and cereals, construction and industrial waste.
• Vibrating plate . The vibrating plate is used mainly in construction, where it compacts and compacts the soil of foundations, trenches and slopes, up to driving piles.
• Ripper . Designed for preliminary loosening of particularly dense soils of the third and fourth categories, as well as rocks, ice formations and old asphalt layers of roads.
• Leveling bucket . It is used to carry out a full range of planning-type works in various areas of the area.

Purpose

The main purpose of the Doosan 225 excavator, of course, is to perform all the necessary loading and earthmoving work. Namely, it is intended for digging holes, pits of any depth, various trenches, and it is also used to create soil embankments and dams. But in addition to this, the use of this technique is also relevant when dismantling any concrete and reinforced concrete structures (including removing the asphalt layer when carrying out repair work on road sections), since the excavator has special equipment for these purposes in its range. Well, terrain planning and other similar work are often used by this excavator.

Using a variety of attachments in the work process, the machine is able to cope with some agricultural and municipal work. And the tracked type of movement significantly expands the list of areas in which it can take part, since thanks to such a platform the vehicle has quite high cross-country ability and maneuverability, which in turn allows it to work on ground with reduced load-bearing capacity, such as, for example, on swampy areas of forestry.

Technical characteristics of Doosan DX225LCA in numbers

• Weight – 21.5 tons.
• Overall dimensions: length – 9.5 m, width – 2.99 m, height – 3.005 m.
• The length of the standard handle is 2.9 m, the length of the boom is 5.7 m.
• The digging radius is 15.379 m, the digging height is 9.75 m, the greatest digging depth is 6.62 m.
• The highest unloading height is 6.99 m.
• Bucket volume – 0.81-1.17 cubic meters. m.
• Specific ground pressure – 0.45 kg/cu.m. cm
• The pullout force on the handle is 10.2 tons.
• The breakout force on the bucket is 14.3 tons.
• The rotation speed of the rotary mechanism per minute is 11 times (revolutions).
• The speed of the excavator is 3-5.5 km/h.
• Volume of refueling tanks: fuel tank - 400 liters, cooling system (radiator capacity): 24 liters, engine oil: 27 liters, swing drive: 5 l, final drive (each): 3.3 l, hydraulic system: 330 l, hydraulic tank: 240 l.

Reviews of Dusan 225 excavators

This model of a crawler excavator is characterized as reliable, strong and durable in use, not inferior in quality to analogues from American and European manufacturers. As an important detail, it is noted that all Doosan hydraulic cylinders are equipped with bypass valves, which block operation if the hose hose is damaged. The absence of these valves, which are characteristic of all economy-class earthmoving equipment, means the risk of losing the entire volume of hydraulic fluid right on site if the hose is damaged, and flooding the entire object with this fluid.

It would seem like a small thing - the air conditioner, which is installed on a Doosan excavator as standard, means a lot for productivity and fuel economy. After all, if the operator is forced to work, sweating, quickly getting tired, and regularly leaving the cabin, then productivity at the site and excessive fuel consumption increase significantly.

Doosan DX225LCA excavators, according to most buyers, are good budget special vehicles, the cost of which is absolutely proportional to the expected quality. This is the right choice for those who do not want or do not have the opportunity to purchase more expensive Caterpillar or Komatsu. The fact that we receive Dusan excavators, mostly assembled in China, does not negatively affect the build quality: it is very decent.

Price

The Doosan DX225LCA crawler excavator without mileage has a cost ranging from 5 million rubles to 7.5 million Russian rubles due to the year of production, version (basic or modified), configuration and installed working equipment.

Used equipment costs from 4 million rubles to 4.5 million rubles. At this price, you can buy a car from 2013 or 2014 in fairly good condition.

An hourly rental service varies from 1,300 rubles to 1,800 Russian rubles, depending on the cost of refueling, transportation, type of work performed and location of the facility. The cost of one full work shift averages 14,000 Russian rubles.