Underground Excavator
1.Ultra-flexible for narrow roadway operations
2.All-round underground performance with explosion-proof feature
3.Durable and sturdy with fewer breakdowns
4.Direct manufacturer for worry-free experience
Product Details
The Underground Excavator, designed and manufactured by Shandong Cresics Equipment Manufacturing Co., Ltd., is a dedicated digging machine for coal mine underground operations. It not only boasts standard excavation functions but can also be fitted with a hydraulic breaker to perform crushing tasks inside mine roadways. Unlike products from other manufacturers, this model offers the following exclusive advantages:
1.Ultra-flexible for narrow roadway operations: Compact body with a height of less than 2.4 meters and zero-tail 360° rotation capability. Easy to turn around and operate in narrow roadways, and adaptable to all types of underground roadway sections.
2.All-round & high-efficiency performance: Capable of excavation, slag removal, milling, and support operations. Realizes quick accessory replacement, completing multiple processes without changing equipment, and delivers much higher efficiency than similar models.
3.Durable & low failure rate: Equipped with well-known imported core components and high-strength steel for key parts. Built-in multiple safety protection systems, ensuring stable operation even under heavy-load conditions with minimal maintenance requirements.
4.Worry-free experience with direct manufacturer: Factory-direct sales eliminate middlemen, offering cost-effective prices and customized solutions. Sufficient spare parts in stock, 24-hour after-sales response, free operation training and maintenance guidance, guaranteeing hassle-free post-purchase usage.
4.Explosion-proof design: Adaptable to various complex underground working conditions, especially suitable for high-gas underground environments.
Parameters
Project | Unit | MWD2.1/0.1L | MWD3.3/0.16L | MWD5.5/0.2L | MWD6.8/0.28L | |
Basic Parameters | Standard Bucket Capacity | m³ | 0.1±0.01 | 0.16±0.016 | 0.2±0.02 | 0.28±0.028 |
Operating Mass | kg | 2100±105 | 3300±165 | 5500±275 | 6800±340 | |
MotorRated Power | kw | 22 | 30 | 37 | 55 | |
Hydraulic System Parameters | Rated Pressure | Mpa | 21.5 | 21.5 | 25 | 25 |
Maximum Flow Rate L/ | L/min | 70 | 90 | 110 | 135 | |
Excavation Parameters | Excavation Radius | mm | 3000 | 3500 | 4500 | 5200 |
Excavation Depth | mm | 1500 | 1800 | 2000 | 2400 | |
Excavation Heightmm | mm | 3200 | 3800 | 4700 | 5250 | |
Dumping Height(mm) | mm | 1800 | 2000 | 2500 | 2950 | |
Excavation Parameters | Walking Mode | / | Travel Motor with Built-in Spring Brake | Travel Motor with Built-in Spring Brake | Travel Motor with Built-in Spring Brake | Travel Motor with Built-in Spring Brake |
Travel Form | / | Caterpillar Track Traveling | Caterpillar Track Traveling | Caterpillar Track Traveling | Caterpillar Track Traveling | |
Ground Contact Pressure | Mpa | ≤ 0.1 | ≤ 0.1 | ≤ 0.1 | ≤ 0.1 | |
Travel Speed | m/min | 26.5 | 26.5 | 26.5 | 26.5 | |
Ground Clearance | mm | ≥ 250 | ≥ 250 | ≥ 250 | ≥ 280 | |
Gradeability | ° | ≥14(Applicable slope range: -14° to +14° ) | ≥ 14 (Applicable slope range: -14° to +14° ) | ≥ 14(Applicable slope range: -14° to +14° ) | ≥14(Applicable slope range: -14° to +14° ) | |
Minimum Turning Radius of Track | mm | ≤ 900 | ≤ 1100 | ≤ 1400 | ≤ 1600 | |
Overall Dimensions(Length × Width × Height) | mm | 2700×1000×2050 | 3200×1350×2250 | 3300×1450×2350 | 3350×1550×2600 | |
Core Applicable Mine Types
1.Coal Mines (including high-gas / outburst mines): Must be explosion-proof (Exd I or Exib I), suitable for environments with risks of methane and coal dust explosions.
2.Metal Mines: Underground mining of iron ore, copper ore, lead-zinc ore, gold ore, etc.
3.Non-metallic Mines: Gypsum mines, limestone mines, salt mines, phosphate mines, etc.
Core Applicable Roadways / Shaft Types
1.Horizontal Roadway Excavation: Development, side expanding and floor smoothing of horizontal roadways.
2.Inclined Shaft Excavation: Rock loading, bottom cleaning and mucking in inclined roadways.
3.Shaft Auxiliary Works: Slag removal and excavation at shaft bottom stations, ingate areas and below hanging scaffolds.
4.Chamber Construction: Excavation and finishing of chambers such as pump rooms, substations and explosive magazines.
Auxiliary Production Operations
●Cleaning under belt conveyor: Removing accumulated materials under the belt to ensure the normal operation of the transportation system.
●Material loading: Loading materials into mine cars, shuttle cars and belt transfer conveyors.
●Frozen soil / permafrost excavation: Suitable for thawing and excavation in mines in cold regions.
Summary of Typical Application Scenarios
●Horizontal roadway excavation in high-gas coal mines: Explosion-proof electric hydraulic excavators are used for rock loading, floor cleaning and side expanding.
●Inclined shaft development in metal mines: For continuous mucking and roadway floor repairing.
●Roadway restoration in old mines: Crushing hardened pavements, excavating ditches and cleaning floating gangue.
●Shaft bottom station in vertical shafts: Cleaning accumulated gangue at the ingate and below the hanging scaffold.
