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**Milling Excavator Introduction**  

A milling excavator is an engineering machinery equipment installed on a hydraulic excavator, which uses a rotating milling head to cut through soil, rock, or concrete materials. It is widely used in tunnel excavation, mining, road construction, and other fields.  

**Ten Advantages of Milling Excavators:**  
1. **High Excavation Efficiency** – Utilizing rotational and impact cutting methods, it quickly breaks through obstacles, achieving an excavation rate of 30–60 m³/h in medium-to-low hardness rock layers and frozen soil, significantly shortening construction time.  
2. **Deep Excavation Capability** – Capable of reaching excavation depths of several dozen meters, meeting the demands of most engineering projects, such as subway tunnels and underground passages.  
3. **Strong Adaptability** – Suitable for various complex geological conditions, including soft soil foundations, collapsible loess, and fractured rock layers, and can mill concrete with no or minimal reinforcement.  
4. **Precise Control** – Operated via a control system, it minimizes over-excavation and under-excavation, improving precision and construction quality while ensuring clear and accurate excavation contours.  
5. **High Safety** – Provides stable excavation, reducing risks of collapse and landslides, and enabling operation in confined spaces. It lowers worker risk by replacing manual excavation in soft or fractured rock layers, eliminating hazards at the tunnel face.  
6. **Low Noise and Vibration** – Generates minimal noise and vibration, making it suitable for construction in noise-sensitive areas such as hospitals, commercial complexes, and campuses, while also protecting the environment.  
7. **Uniform Milled Material** – Produces evenly sized milled particles that can be directly reused as backfill material, supporting sustainable construction practices.  
8. **Compact Structure** – Designed with a small footprint; some models can be mounted on 2.5-ton excavators, and certain milling excavators feature a tailless design for tight turning radius and agile operation.  
9. **Easy Installation** – Can be installed on any existing hydraulic excavator by utilizing the hydraulic circuit of a hydraulic hammer or hydraulic clamp, eliminating the need to purchase a new excavator.  
10. **Convenient Maintenance** – Features a simple structure; some models require no greasing or nitrogen charging, and routine inspections are sufficient to extend equipment lifespan without special maintenance requirements.