QZ Type Double Girder Grab Bucket Bridge Crane
This is a QZ type double girder grab bucket bridge crane, mainly used for loading, unloading, and transferring bulk materials in industrial settings.
Technical Parameters:
| Rated Lifting Capacity | 5–20 tons (including grab bucket weight) Customizable 3–32 tons |
| Applicable Span | 10.5–31.5 meters Customizable according to factory structure |
| Lifting Height | 12–28 meters Adjustable according to operational needs |
| Working Class | A6 (Heavy Duty) Suitable for continuous high-intensity operations |
| Lifting Speed | 8–16 m/min Variable frequency speed control, steplessly adjustable |
| Grab Bucket Volume | 1.5–8 m³ Matched according to material density |
| Control method | Driver's cab operation / ground remote control / fully automatic; remote control distance: 50–100 m |
🔧 Core Structure and Features
Double Girder Bridge: Adopts a high-strength box-beam welded structure, with strong load-bearing capacity and stable operation, suitable for large-span heavy-duty conditions.
Four-Rope Grab Bucket: Equipped with a double-drum four-rope grab bucket, it can be precisely opened and closed at any height, with high grabbing efficiency, suitable for bulk materials such as ore, coal, and sand.
Drive System: Both the trolley and auxiliary trolley traveling mechanisms adopt frequency conversion speed regulation, ensuring smooth operation, precise positioning, and stepless speed regulation.
Operation Methods: Supports cab operation, ground remote control, and fully automatic control modes, offering flexible operation and reliable safety.
📦 Typical Application Scenarios
Thermal Power Plants: Used for the transfer of raw coal in dry coal sheds and silos, and for the cleaning and transportation of slag and fly ash.
Ports and docks: Loading and unloading bulk cargo such as coal and ore between storage yards and ships.
Mining and metallurgy: Transferring materials such as ore, slag, and coke within material yards and workshops.
Building materials and chemicals: Handling granular materials such as limestone, mineral powder, and sand, adapting to continuous production needs.
⚙️ Key Technical Parameters (Reference Values)
Item Parameter
Rated lifting capacity 5–20 tons (including grab bucket weight)
Applicable span 10.5–31.5 meters
Lifting height 12–28 meters (customizable)
Working class A6 (heavy-duty)
Grab bucket type: Four-rope mechanical grab bucket
Control method: Manual / Semi-automatic / Fully automatic
✨ Core Advantages
High-efficiency bulk material handling: The grab bucket can quickly grab and transfer bulk materials, significantly improving loading and unloading efficiency and replacing manual labor and traditional equipment.
Safe and reliable: Equipped with overload protection, limit devices, audible and visual alarms, and other multiple safety systems to ensure operational safety. Flexible Adaptability: Lifting capacity, span, grab type, and control mode can be customized according to working conditions to meet the needs of different industries.
Convenient Maintenance: Modular design allows for easy inspection and replacement of key components, reducing downtime and maintenance costs.