Classification of Bridge Cranes
Bridge cranes, also known as overhead traveling cranes, are critical lifting equipment widely used in factories, warehouses, and industrial yards. Characterized by their horizontal bridge-like structure supported by elevated rails or steel columns, they enable efficient material handling across large workspaces
By Lifting Attachment
- Hook Bridge Cranes
Equipped with hooks for general-purpose lifting, ideal for standard material handling in manufacturing and logistics. - Grab Bucket Cranes
Designed with grab buckets to handle bulk materials like coal, sand, or gravel in mining and construction sectors. - Electromagnetic Cranes
Utilize electromagnetic plates to lift ferromagnetic materials (e.g., steel plates, scrap metal) in metal processing industries. - Multi-Purpose Cranes
Allow interchangeable attachments (hook, grab, or electromagnetic) for flexible operations in diverse scenarios.
By Structural Design
- Single Girder Bridge Cranes
Compact and cost-effective, suitable for light-duty tasks (≤20 tons) in small workshops or warehouses. - Double Girder Bridge Cranes
Robust construction with higher load capacity (up to 550+ tons), preferred for heavy industries like steel mills and shipbuilding. - Box Girder vs. Truss Girder
- Box Girder: High rigidity and durability, common in modern industrial applications.
- Truss Girder: Lightweight design for large-span, low-load scenarios
- Single Girder Bridge Cranes
By Driving Mechanism
- Electric Hoist Cranes
Utilize electric hoists for vertical lifting, ideal for low-to-medium frequency operations in warehouses. - Winch-Driven Cranes
Equipped with heavy-duty winch systems for high-intensity lifting, often used in heavy manufacturing
Application Scenarios
| Type | Typical Use Cases |
|---|---|
| Electromagnetic Crane | Steel plants, scrap recycling centers |
| Double Girder Crane | Ports, aerospace facilities, heavy machinery assembly lines68 |
| Grab Bucket Crane | Bulk cargo terminals, construction sites |
Conclusion
Bridge cranes are categorized based on lifting attachments, structural configurations, and driving systems to meet varied industrial demands. Selecting the right type depends on factors like load capacity, workspace constraints, and operational frequency. For specialized environments (e.g., explosive atmospheres), modified designs such as explosion-proof bridge cranes may be required
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