Used Doosan DX225-9 Excavator

Reading: 2486

Detailed Introduction of Doosan DX225-9 Crawler Excavator

The Doosan DX225-9 is a 22-ton class medium-sized crawler excavator developed and manufactured by Doosan Infracore, as the upgraded iteration of the classic DX225 product line. It balances high power, fuel efficiency, durability and operating comfort, and is widely used in construction, mining, municipal engineering and other scenarios, adapting to the working conditions of both emerging markets and mature markets.

1. Core Performance Parameters

Parameter	Specification
Operating Weight	21.8 – 23.2 t (varies with configurations of boom, arm, bucket and counterweight)
Bucket Capacity	0.86 – 1.2 m³ (optional rock bucket, grid bucket, etc.)
Rated Power	110 kW / 1900 rpm
Max Bucket Digging Force	152 kN
Max Arm Digging Force	113 kN
Max Digging Depth	6620 mm (standard configuration)
Max Digging Reach	9850 mm (standard configuration)
Max Dumping Height	6790 mm (standard configuration)
Travel Speed	3.1 km/h (low speed) / 5.5 km/h (high speed)
Swing Speed	11.3 rpm
Gradeability	70% (35°)
Emission Standard	EU Stage IIIA / US EPA Tier 3 / China National III (customizable for higher emission standards in specific regions)

2. Engine System

The DX225-9 is equipped with a Doosan-built DL06 6-cylinder, water-cooled, turbocharged intercooled diesel engine:

Adopts high-pressure common rail fuel injection technology and electronically controlled combustion optimization system, which reduces fuel consumption by 5~8% compared with the previous generation DX225-7 under the same working conditions.
It is designed with three adjustable working modes to adapt to different load demands:
- P (Power) Mode: Full power output for heavy-load conditions such as rock excavation and crushing
- S (Standard) Mode: Balanced power and fuel consumption for general earthwork
- E (Economy) Mode: Low power output for light-load conditions such as material handling and land leveling
Equipped with two-stage fuel filtration and a water separator, which can adapt to low-quality fuel in underdeveloped regions, and the automatic idle and pre-shutdown heat dissipation functions effectively extend the engine service life.

3. Hydraulic System

It adopts Doosan's patented e-EPOS (Electronic Power Optimizing System) and load-sensing hydraulic technology:

The system automatically matches the engine output power and hydraulic pump flow in real time, reducing unnecessary energy loss and avoiding pressure loss during compound actions.
Independent working circuit for boom, arm, swing and travel, ensuring smooth composite operations such as simultaneous digging and swing, travel and boom lifting, no lag or jamming.
High-precision return oil filtration system effectively protects hydraulic components, and the hydraulic oil replacement cycle reaches 4000 hours, reducing maintenance costs.

4. Operator Comfort & Safety

The cab is certified with ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure), which effectively protects the safety of the operator in case of rollover or falling object impact.
The full-suspension cab mount reduces vibration by 30% compared with the previous generation, and the internal operating noise is controlled at 68 dB(A), which is far lower than the industry average.
Ergonomic control joysticks with short stroke and low operating force, multi-directional adjustable air suspension seat, and multi-outlet automatic constant temperature air conditioning reduce fatigue during long-term operation.
The 5.7-inch full-color LCD monitor displays real-time data such as fuel level, hydraulic oil temperature, water temperature and fault codes, and supports one-click fault query. Optional reverse camera and front guard net are available for special working conditions.

5. Durability & Maintainability

The boom and arm are welded with high-strength wear-resistant steel, and reinforced with stiffeners at the stress concentration points, which can adapt to long-term high-load impact conditions. The crawler plate, supporting roller, idler and carrier roller are all treated with surface hardening, and their service life is increased by 20% compared with similar products.
All maintenance points such as filter elements, oil filling ports and lubrication points are arranged at ground-accessible positions, and the 500-hour regular maintenance only takes about 30 minutes to complete.
Optional Doosan Connect telematics system supports remote monitoring of equipment location, working hours, fuel consumption and fault warning, which is convenient for fleet management and preventive maintenance.

6. Application Scenarios & Optional Accessories

Typical Application Scenarios

Municipal infrastructure construction, road construction, foundation excavation, quarry crushing, river dredging, land consolidation, bulk material (sand, coal) handling, etc.

Optional Accessories

Extended boom/arm, quick coupler, hammer piping, grapple, ripper, hydraulic shear, cold zone package (cold start device, fuel heater), high temperature zone package (enhanced cooling system), etc.

Summary

The Doosan DX225-9 is one of the best-selling medium excavators in the global market, with low failure rate, low operating cost and high residual value, which is suitable for individual operators and engineering fleet users.

Non flooded

No accident

Original product

Used Doosan DX225-9 Excavator

RELATED PRODUCTS

Doosan DX150W-7

Doosan DH225LC-9E

Doosan DX225

Doosan DX225LC