High Performance Used DOOSAN Dh210w-7 21 Ton Wheeled Excavator for Construction Work

The DOOSAN DH210W-7 is a 21-ton, high-performance wheeled hydraulic excavator manufactured by Doosan Bobcat. It is renowned for its excellent maneuverability (suitable for road transfers and complex construction sites), powerful operational performance (powered by an efficient Yanmar engine and advanced hydraulic system), and versatility (adaptable to a wide range of attachments). It is widely used in urban construction, municipal engineering, road maintenance, and other fields requiring efficient and flexible operations, serving as a workhorse model that balances productivity and maneuverability.

We specialize in thorough quality repairs.Amidst a second-hand excavator market flooded by low-price temptations and shoddy repairs, we have chosen a tougher yet more rewarding path.  We understand deeply that every crane bound for distant shores carries not just cargo, but the backbone of your projects and your reputation. Thus, we refuse to sacrifice quality for fleeting price advantages. We specialize in thorough quality repairs, treating each machine as our own — rigorously inspecting and restoring every inch of steel structure, every hydraulic line, and every electrical node, leaving no room for hidden dangers.  

DOOSAN DH210W-7 Crawler Excavator Specificaion

Standard operating weight: 21,000 kg

Maximum travel weight: 22,000 kg

Volume: 4.0 L

Rated power (net): 120 kW

Bucket digging force: 120 kN

Arm digging force: 100 kN

Maximum digging radius: 9,500 mm

Maximum digging depth:  6,400 mm

Maximum digging height: 9,200 mm

Maximum dump height: 6,600 mm

Fuel tank: 20 L

Engine oil: 18 L 

Maintenance

1.Engine oil needs to be replaced regularly, with a general replacement cycle of 500 hours.

2. Hydraulic oil should be replaced according to the prescribed maintenance cycle, which is 2,500 to 3,000 hours.

3. Timely addition of lubricating grease can effectively reduce the wear of each component and ensure smooth operation of all components.

4. Regularly clean or replace the air filter element and air filter to ensure that the engine sucks in clean air and improve fuel efficiency. In harsh working conditions such as heavy dust, the frequency of inspections should be increased.

5. Check the coolant level to keep the cooling system unobstructed and prevent overheating.

6. Clean the radiator. When an excavator is in operation, it generates a large amount of heat. The cleaning of the radiator is very important for maintaining the normal operation of the engine.

7. Tracks are important components of excavators. Appropriate track tension can extend the service life of tracks. Regularly inspect and adjust the tension of the tracks to ensure they are within a consistent standard range.

8. The transmission system is an important component of an excavator. Regular checks should be conducted on the transmission chain, gears and other parts, and severely worn components should be replaced in a timely manner.Through the above daily maintenance measures, faults can be effectively prevented, the service life of excavators can be prolonged, and the safety and smooth progress of work can be ensured.