Used Doosan DH225LC-9E Excavator

Reading: 1995

Detailed Introduction of DOOSAN DH225LC-9E Crawler Hydraulic Excavator

The Doosan DH225LC-9E is a classic 22-ton class medium-sized crawler excavator developed by Doosan Infracore, optimized for high reliability, low fuel consumption and wide adaptability based on the market-proven DH series. It meets regional emission standards including Tier 3/Stage IIIA and China National III, and is widely used in construction, mining, municipal and water conservancy projects around the world.

1. Core Specifications

Parameter	Specific Value
Operating Weight	22100 – 22900 kg
Standard Bucket Capacity	0.92 – 1.18 m³ (customizable for earthwork/rock/grapple buckets)
Engine Model	Doosan DL06K 6-cylinder water-cooled turbocharged diesel engine
Rated Power	110 kW / 1900 rpm
Max. Torque	590 N·m / 1400 rpm
Travel Speed	3.1 km/h (low) / 5.4 km/h (high)
Swing Speed	11.5 rpm
Max. Digging Depth	6620 mm
Max. Digging Radius	9890 mm
Max. Digging Height	9640 mm
Max. Dumping Height	6810 mm
Gradeability	35° (70% slope)
Ground Pressure	47 kPa (low ground pressure for soft terrain adaptability)

2. Core Performance Advantages

2.1 High Efficiency & Low Fuel Consumption

Equipped with Doosan proprietary EPOS (Electronic Power Optimizing System), which automatically matches engine output and hydraulic pump flow according to real-time load, reducing comprehensive fuel consumption by 5-8% compared to older generation models. It provides 3 optional working modes for different scenarios:

P (Power Mode): Full power output for heavy-load rock mining and breaking operations
S (Standard Mode): Balanced power and fuel consumption for daily earthwork and loading
E (Economy Mode): Maximum fuel saving for light-load finishing and site cleaningIt also supports automatic idle speed reduction, which lowers engine speed to low idle after 5 seconds of no operation, further reducing unnecessary fuel waste.

2.2 Reliable Power System

The self-developed DL06K engine adopts high-pressure common rail fuel injection technology, with full combustion, low emission and low noise. It is equipped with 2-stage fuel pre-filter + water separator, which adapts to low-quality fuel in remote construction sites, and double-stage dry air filter for dust-proof performance in high-dust mining scenarios. The B10 engine overhaul life exceeds 12000 hours, greatly reducing long-term operation cost.

2.3 High-response Hydraulic System

Adopts optimized negative flow control hydraulic system, with low pressure loss and fast response. The composite operation coordination of boom, arm and swing is smooth, which is suitable for high-precision operations such as leveling and precise loading. The double axial piston main pump provides a total flow of 440 L/min, and the main relief pressure reaches 34.3 MPa, ensuring strong digging force. It is also equipped with swing buffer valve and travel automatic torque boosting function, ensuring stable operation and strong climbing ability.

3. Structural Durability

The undercarriage adopts X-type box welded structure made of high-strength steel, with reinforced stress concentration points to resist impact under heavy load. The track rollers, carrier rollers and idlers adopt long-life sealed lubrication design, with service life exceeding 5000 hours. The LC-type extended and widened high-manganese steel track reduces ground pressure, and has excellent passability on soft ground, wetlands and muddy construction sites.
The boom, arm and bucket are all reinforced with thickened wear-resistant steel plates, and all welded joints are subject to ultrasonic flaw detection to avoid cracking under long-term heavy load operations. The standard rock bucket is equipped with high-hardness wear-resistant cutting edge and Doosan original wear-resistant bucket teeth, which has long service life.
The reinforced slewing bearing is equipped with multi-layer dustproof seal, which prevents sand and dust from entering, and has a service life 20% longer than similar products.

4. Operator Comfort

The cab has passed ROPS (Roll Over Protective Structure) and FOPS (Falling Object Protective Structure) certification, which ensures the safety of operators in case of accidents.
Fully sealed and sound-insulated design, the operating noise inside the cab is only 72 dB(A), which is far lower than the industry average.
The fully adjustable air suspension seat with lumbar support reduces fatigue during long hours of operation. The automatic constant-temperature air conditioner with multiple air outlets provides comfortable working environment in extreme cold or hot weather.
The pilot control handle has moderate operating force and reasonable stroke, which reduces hand fatigue. The integrated LCD display can real-time monitor fuel level, oil pressure, oil temperature and fault codes, so that operators can grasp the equipment status at any time. It is also equipped with USB charging port, storage compartment and radio for humanized use experience.

5. Maintenance Convenience

All maintenance points are arranged in accessible positions on the side of the upper frame, which can be reached directly from the ground without climbing, reducing maintenance time.
The hydraulic oil change interval reaches 4000 hours, engine oil change interval is 500 hours, and air filter change interval is 2000 hours, which reduces maintenance cost.
Built-in fault self-diagnosis system, which can directly display fault codes when abnormality occurs, helping maintenance personnel locate problems quickly and reduce downtime. Optional central lubrication system is available to avoid manual greasing one by one.

6. Application Scenarios

The DH225LC-9E is suitable for a wide range of operations: medium-sized earthwork construction, municipal road renovation, highway and railway construction, quarry mining, material loading, water conservancy project, forest clearing, etc. It can also be equipped with a variety of attachments such as hydraulic breaker, log grapple, ripper and hydraulic shear to expand operation functions.

With low failure rate, high second-hand residual value and perfect global after-sales service network of Doosan, it is one of the most cost-effective products in the 20-ton class excavator market, and is highly recognized by users all over the world.

Non flooded

No accident

Original product

Used Doosan DH225LC-9E Excavator

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