Double girder overhead cranes are core industrial lifting machinery extensively adopted across diverse industrial sectors. Serving as essential handling equipment for factory workshops, storage yards, and steel processing plants, the standard QD double girder overhead crane delivers dependable, high-efficiency heavy-load hoisting, loading and unloading solutions. Its optimized structural design effectively stabilizes production workflows and streamlines on-site material logistics.
The complete equipment structure consists of main bridge beams, trolley travelling units, electric hoisting trolley and vertical lifting assemblies. A dual-beam bearing framework acts as the core load-bearing component. Fabricated with premium-grade steel materials, the rigid integral frame boasts excellent compression resistance and bending resistance, maintaining stable structural performance even during heavy-duty lifting operations.
The bridge travelling devices are installed at both ends of the crane bridge, enabling the entire equipment to travel along factory and terminal rails for large-range working position adjustment. The electric trolley runs stably on the bridge rails to flexibly switch lifting positions. Equipped with high-precision transmission assemblies and professional braking systems, the vertical hoisting mechanism realizes steady, secure lifting and descending of heavy loads. The matched electrical system supplies power to all functional components, with precise control systems composed of motors, intelligent controllers and limit sensors to guarantee accurate, safe and standardized equipment operation.
QD type double girder overhead cranes are widely applicable for indoor and outdoor operation in industrial and mining sites, chemical factories, metallurgical plants, railway freight yards, port terminals and logistics storage centers.
In industrial and mining workshops, the equipment is mainly used for hoisting and transferring production raw materials, semi-finished parts and finished products, significantly improving overall production efficiency and realizing streamlined manufacturing processes.
For metallurgy and chemical enterprises, it supports the handling of large-scale production equipment, steel materials and chemical bulk raw materials. In railway transportation scenarios, it assists in rapid cargo loading and unloading work. At port terminals, it serves as high-performance handling equipment for container and bulk cargo lifting, transportation and shipment. In logistics warehousing industries, it efficiently completes cargo storage, transshipment and sorting work.
Weihua Crane offers one-stop customized QD double girder overhead crane solutions tailored for factory workshops and outdoor industrial operation scenarios. Featuring strong load-bearing capacity, accurate handling performance and stable operational quality, our cranes fully meet the heavy-duty material handling demands of modern industrial production.
All core parameters including rated lifting weight, working span, lifting height and track spacing support flexible personalized adjustment, adapting to various factory site layouts and diverse heavy-load operation standards to ensure efficient and safe long-term operation.
Optional Configurations
Electric and hybrid travelling trolley systems
Intelligent automatic control and remote operating system
Professional anti-sway and high-precision positioning system for industrial cargo handling
High-efficiency energy-saving driving device and regenerative braking system
Dedicated structural customization to adapt to special factory track layouts
Our professional engineering team focuses on operational efficiency, safety performance and long-term equipment stability, providing high-quality customized lifting solutions for modern industrial workshops and various heavy-duty material handling scenarios.
| Model | QD type | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lifting capacity | t | 5 | 10 | 16/3.2 | 20/5 | 32/5 | 50/10 | 75/20 | 100/20 | |
| Max.lifting height | Main lifting | m | 16 | 16 | 16 | 12 | 16 | 12 | 20 | 22 |
| Aux.lifting | m | — | — | 18 | 14 | 18 | 16 | 22 | 22 | |
| Span | m | 10.5-31.5 | 13.5-31.5 | 13-31 | ||||||
| Lifting speed | Main | m/min | 11.3 | 8.5 | 7.9 | 7.2 | 7.5 | 5.9 | 6.1 | 3.9 |
| 15.6 | 10.4 | 10.7 | 9.8 | 9.5 | 7.8 | 6.1 | 4.9 | |||
| Aux. | — | — | 14.6 | 15.5 | 15.5 | 10.4 | 7.2 | 7.2 | ||
| Trolley traveling speed | m/min | 37.2 | 37.2 | 40.0 | 40.0 | 42.6 | 38.5 | 38.4 | 33.90 | |
| Crane traveling speed | A5 | m/min | 68.3/70.4 | 70.4/71.8/73.4 | 70/72/72.8 | 70/72/73 | 74.2/75.1 | 75/75/72 | 53.9 | 61.7 |
| A6 | 68.3/71.1/88.9 | 71.1/74.2/74.2 | 70/72/73 | 71.3/73.6/73.6 | 75 | 75/75/74 | 77.8/67 | 61.8 | ||
| Power Supply | 3 Phase A.C. 50Hz 380V or others | |||||||||
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