What is a dragline?
A dragline is a type of heavy equipment used in mining, construction, and civil engineering projects. It’s a large machine that consists of a boom, a bucket, and a hoist system, which work together to excavate and move large amounts of soil, rock, and other materials.
What is it used for?
It is commonly used for mining (coal, iron ore, etc.), Construction (building foundations, canals, etc.), Civil engineering (land reclamation, etc.), Environmental remediation (cleaning up contaminated sites).
Draglines are particularly useful for excavating large areas, moving heavy materials, and reaching deep depths. Draglines can be electric or hydraulic, and come in various sizes, ranging from small to massive machines weighing over 10 million pounds!
What are the technical specifications of a dragline?
Here are the technical specifications of a typical dragline:
General Specifications
- Type: Electric or Hydraulic
- Size: Ranges from 100 to 200 tons
- Boom Length: Up to 360 feet (109 meters)
- Boom Angle: Up to 45 degrees
- Digging Depth: Up to 150 feet (46 meters)
Hoist Specifications
- Hoist Motor: Electric or Hydraulic
- Hoist Capacity: Up to 250 tons
- Hoist Speed: Up to 200 feet per minute (61 meters per minute)
Drag Specifications
- Drag Motor: Electric or Hydraulic
- Drag Capacity: Up to 150 tons
- Drag Speed: Up to 100 feet per minute (30 meters per minute)
Swing Specifications
- Swing Motor: Electric or Hydraulic
- Swing Capacity: Up to 150 tons
- Swing Speed: Up to 50 feet per minute (15 meters per minute)
Electrical Specifications
- Power Source: Electric or Diesel-Electric
- Voltage: Up to 13,800 volts
- Current: Up to 1,000 amps
Hydraulic Specifications
- Hydraulic System: Open or Closed Loop
- Hydraulic Pressure: Up to 3,000 psi (207 bar)
- Hydraulic Flow: Up to 1,000 gallons per minute (3,785 liters per minute)
Other Specifications
- Operating Weight: Up to 10 million pounds (4,536,000 kilograms)
- Ground Pressure: Up to 20 psi (138 kPa)
- Bucket Capacity: Up to 100 cubic yards (76 cubic meters)
Please note that these specifications can vary depending on the manufacturer and model of the dragline.
