15-Apr-2025
Double Girder EOT Cranes: Complete Guide to Models, Specifications & Applications by Dongqi Crane
Introduction to Double Girder EOT Cranes
Double girder Electric Overhead Traveling (EOT) cranes are heavy-duty lifting solutions designed for industries requiring high capacity, long spans, and precision handling. As a leading double girder EOT crane manufacturer, Dongqi Crane provides robust cranes with capacities ranging from 5 tons to 500+ tons, suitable for steel plants, power stations, and heavy industrial facilities.
This guide covers:
- Double girder EOT crane specifications & models (5T–50T)
- Key components & structural design
- Applications in different industries
- Single girder vs. double girder EOT cranes
- Why choose Dongqi Crane as your supplier
1. Double Girder EOT Crane Specifications & Models
Dongqi Crane offers a range of double girder EOT cranes with different lifting capacities and spans:
| Model | Capacity | Span (m) | Lifting Height (m) | Lifting Speed (m/min) | Price (USD) |
|---|---|---|---|---|---|
| DQ-DG-5T | 5 tons | 10–22 | 6–24 | 3.2–8 (VFD optional) | $15,000–$25,000 |
| DQ-DG-10T | 10 tons | 12–25 | 6–30 | 3.2–8 (VFD optional) | $20,000–$35,000 |
| DQ-DG-20T | 20 tons | 15–28 | 6–30 | 2.5–7 (VFD standard) | $35,000–$60,000 |
| DQ-DG-30T | 30 tons | 18–30 | 6–30 | 2.5–7 (VFD standard) | $50,000–$85,000 |
| DQ-DG-40T | 40 tons | 20–35 | 6–30 | 2.0–6 (VFD standard) | $70,000–$120,000 |
| DQ-DG-50T | 50 tons | 22–35 | 6–30 | 2.0–6 (VFD standard) | $90,000–$150,000 |
Key Features:
- Box girder construction (high rigidity, minimal deflection)
- Variable Frequency Drive (VFD) for smooth operation
- Overload protection & limit switches (safety compliance)
- Customizable span & lifting height (up to 30m+)
2. Double Girder EOT Crane Components
| Component | Function | Dongqi Standard |
|---|---|---|
| Main Girders | Support load | Welded steel box girder (EN 15011 compliant) |
| End Carriages | Move crane along runway | Forged steel wheels with anti-derailment guards |
| Hoist & Trolley | Lift & transport loads | Heavy-duty wire rope hoist (5T–500T) |
| Control System | Operate crane | Pendant / Radio remote / Cabin control |
| Runway Beam | Support crane movement | Adjustable for different building structures |
Optional Upgrades:
- Automated positioning system (±2mm accuracy)
- Explosion-proof design (ATEX certification)
- Crane monitoring system (IoT-enabled predictive maintenance)
3. Double Girder vs. Single Girder EOT Cranes
| Feature | Double Girder EOT Crane | Single Girder EOT Crane |
|---|---|---|
| Capacity | 5–500+ tons | 1–20 tons |
| Span | 10–35m+ | 5–22.5m |
| Lifting Height | Higher (up to 30m+) | Limited by girder depth |
| Precision | Excellent (±2mm with VFD) | Good (±10mm) |
| Duty Cycle | Heavy (Class D-F) | Light/Medium (Class A-C) |
| Cost | Higher ($15K–$500K+) | Lower ($2K–$25K) |
✔ Choose Double Girder If:
- You need >20-ton capacity or long spans (>22.5m)
- You require high precision & durability
- Your facility operates 24/7 with heavy loads
✔ Choose Single Girder If:
- You handle <20-ton loads
- You have space or budget constraints
- You need a simple, cost-effective solution
4. Applications of Double Girder EOT Cranes
A. Heavy Industries
- Steel Plants: Handling coils, slabs, and castings
- Foundries: Moving molten metal & large molds
- Shipbuilding: Positioning heavy ship components
B. Energy & Infrastructure
- Power Plants: Turbine & generator maintenance
- Wind Energy: Blade & nacelle assembly
- Bridge Construction: Girder segment installation
C. Manufacturing & Logistics
- Automotive: Press line operations
- Aerospace: Large component assembly
- Warehousing: Heavy pallet handling
5. Why Choose Dongqi Crane?
✔ ISO 9001 Certified Manufacturer
✔ Custom Designs (up to 500+ tons, 35m+ spans)
✔ Fast Delivery (30–60 days for standard models)
✔ Global After-Sales Support (2-year warranty)
Contact Dongqi Crane Today:
📧 Email: sales010@cranesdq.com
📞 Phone: +86 18638815424
🌐 Website: https://sg.craneyt.com/
Conclusion
Double girder EOT cranes from Dongqi Crane provide high-capacity, precision lifting solutions for industries requiring heavy-duty performance. Whether you need a 5-ton model for manufacturing or a 50-ton+ crane for steel plants, Dongqi offers reliable, customizable options at competitive prices.
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