2021 دايو / دوسان DH80-7

Doosan DH80-7 Parameter Report

1. Basic Overview

The Doosan DH80-7 is a 7-ton crawler hydraulic excavator, specifically engineered for general construction tasks such as urban infrastructure development, landscaping, and small-scale earthmoving projects. Its compact dimensions and versatile performance make it an ideal choice for operations in confined spaces where larger excavators may struggle to maneuver.

2. Core Configuration Parameters

2.1 Engine System

Powered by a reliable Doosan engine, the DH80-7 delivers a rated power of 41.4 kW at 2100 rpm. This engine not only ensures robust power output for heavy-duty digging but also incorporates advanced fuel-saving technologies, optimizing fuel efficiency without compromising on performance. It complies with stringent emission standards, making it an environmentally conscious option for modern construction sites.

2.2 Hydraulic System

Equipped with a high-performance hydraulic system, the excavator offers precise and smooth operation. The system features boom and arm flow regeneration, which enhances work efficiency by reducing energy loss during cycle operations. With a maximum system pressure that provides strong digging forces, the DH80-7 can easily handle tough soil and rock conditions. Additionally, the swing anti-rebound valves ensure stable and controlled rotation, improving overall operational safety.

3. Performance Parameters

3.1 Digging Capabilities





Bucket Digging Force: 55 kN



Arm Digging Force: 38 kN



Maximum Digging Radius: 6695 mm



Maximum Digging Depth: 4020 mm



Maximum Digging Height: 6380 mm



Maximum Unloading Height: 4395 mm

These parameters demonstrate the excavator's exceptional ability to perform a wide range of digging and lifting tasks, from deep foundation excavation to material loading onto trucks.

3.2 Mobility and Maneuverability





Travel Speed: 3.7 km/h (low gear) / 5.2 km/h (high gear)



Swing Speed: 9.6 rpm



Climbing Capacity: 70%

The DH80-7's efficient travel and swing speeds allow for quick job site relocation and precise positioning during operations. Its impressive climbing capacity enables it to navigate uneven terrain and steep slopes with ease, expanding its usability in diverse working environments.

4. Dimension and Weight Parameters





Operating Weight: 7430 kg



Transport Dimensions (L×W×H): 6280 mm × 2100 mm × 2420 mm



Track Length: 2775 mm



Track Width: 2200 mm



Track Gauge: 1750 mm



Minimum Ground Clearance: 365 mm



Rear Swing Radius: 1700 mm

The compact transport dimensions facilitate easy transportation between job sites, while the well-balanced weight distribution ensures stability during operation, even when working on soft or uneven ground.

5. Bucket Configuration

The standard bucket capacity ranges from 0.28 to 0.32 cubic meters, suitable for handling various materials such as soil, sand, and gravel. The excavator is also compatible with a range of optional attachments, including breakers, grapples, and augers, further enhancing its versatility and allowing it to adapt to different job requirements.

6. Cab and Comfort Features

The ergonomically designed cab provides a comfortable and safe working environment for the operator. It features an adjustable air suspension seat, climate control system, and low-noise operation, reducing operator fatigue during long working hours. The large windows and optimized mirror placement offer excellent all-around visibility, enhancing operational safety by minimizing blind spots.

7. Maintenance and Reliability

Doosan has designed the DH80-7 with ease of maintenance in mind. The engine hood swings up at a wide angle, providing convenient access to key components for inspection and servicing. The integrated junction box organizes fuses and relays neatly, simplifying troubleshooting. Additionally, the use of high-quality materials and components ensures long-term reliability, reducing downtime and maintenance costs for the owner.