Used Doosan DH150LC-7 Excavator

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Doosan DH150LC-7 Crawler Excavator Detailed Introduction

The Doosan DH150LC-7 is a classic mid-sized crawler excavator developed and manufactured by Doosan Infracore, South Korea’s leading global construction equipment brand. As a core product of Doosan’s widely recognized -7 series product line, it balances power output, fuel efficiency, durability and operational flexibility, and has gained high market recognition across Asia, the Middle East, Oceania and other regions, especially for small and medium-sized construction scenarios.

1. Core Specifications

Parameter	Specific Value
Operating Weight	13,900 kg – 14,700 kg (varies by bucket configuration, counterweight and attachments)
Standard Bucket Capacity	0.58 m³ (optional range: 0.28 m³ – 0.75 m³)
Maximum Digging Depth	5,560 mm
Maximum Digging Reach	8,320 mm
Maximum Digging Height	8,570 mm
Swing Speed	12.4 rpm
Travel Speed	3.4 km/h (low gear) / 5.5 km/h (high gear)
Drawbar Pull	137 kN
Ground Clearance	440 mm
Standard Track Shoe Width	600 mm (optional 700 mm for soft ground)
Ground Specific Pressure	0.37 kg/cm²

2. Core Technical Configuration

2.1 Power System

It is equipped with a Doosan DB58TIS 4-cylinder, water-cooled, turbocharged intercooled diesel engine, which meets the US EPA Tier 2 / EU Stage II emission standards:

Rated power: 84 kW (112 hp) at 2200 rpm
Peak torque: 435 N·m at 1400 rpm
Built-in cold start assist device supports normal start at -25℃, and high-temperature protection system ensures stable operation under 45℃ ambient temperature. A pre-air filter is standard for dusty and plateau working conditions.

2.2 Hydraulic System

Adopts Doosan’s proprietary negative flow control hydraulic system:

Dual axial piston main pumps with a total maximum flow of 254 L/min, featuring fast response, precise operation coordination and low hydraulic loss
Automatic power matching function adjusts pump output in real time according to engine load, avoiding power waste and overload
Standard auxiliary hydraulic pipeline supports installation of breakers, augers, grapples and other attachments to expand application scenarios.

2.3 Undercarriage System

The "LC" in the model stands for long crawler, with an extended and widened reinforced chassis:

7 track rollers and 2 carrier rollers on each side, with X-type integrally formed central frame for strong torsion resistance
Low ground specific pressure ensures excellent stability and passing ability on muddy, hilly and uneven construction sites.

2.4 Structural Components

Boom, arm and bucket are made of high-strength alloy steel, welded by robot with full penetration process, and key stress points (hinge joints, boom root, bucket edge) are specially reinforced to withstand long-term high-load operation and extend service life.

3. Performance Advantages

High cost efficiency: Optimized matching of engine and hydraulic system reduces comprehensive fuel consumption by 5-8% compared with same-tonnage competitors, and overall operating efficiency is 10% higher than the previous generation of Doosan 15-ton excavators.
High residual value: Mature and reliable technology makes it one of the best-selling models in the global second-hand construction equipment market, with a much higher circulation rate and residual value than similar products.
**Low maintenance cost: Daily maintenance points (oil level check, filter replacement, radiator cleaning) are all arranged in ground-accessible areas, which reduces maintenance difficulty and time. The service interval of hydraulic oil is extended to 2000 hours, and the accessory cost is 10-15% lower than European and American brands of the same level.

4. Operator Comfort & Safety

The cab adopts ROPS (Roll-over Protective Structure) and FOPS (Falling Object Protective Structure) certified reinforced design, which can effectively protect operator safety in case of rollover or falling object impact.
Equipped with fully adjustable air suspension seat, ergonomic low-operating-force joystick (operating force reduced by 20% compared with traditional models), which effectively reduces fatigue of long-term operation.
Standard configuration includes high-efficiency air conditioning, AM/FM radio, large storage space, and large-area panoramic glass for wide vision. The LCD instrument panel monitors the working status of the whole machine in real time and gives fault alarms promptly.

5. Main Application Scenarios

The DH150LC-7 is suitable for a wide range of construction scenarios:

Municipal engineering: road reconstruction, pipeline laying, urban greening, small building demolition
Water conservancy and power projects: river dredging, power tower foundation excavation
Agricultural and forestry construction: land reclamation, terraced field construction, forestry logging
Small mining and quarrying: ore loading, stone handling
Real estate construction: small site foundation excavation, site leveling, material transfer.

It is the first choice for small and medium-sized construction contractors and individual operators pursuing high cost efficiency and reliable performance.

Non flooded

No accident

Original product

Used Doosan DH150LC-7 Excavator

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