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The double-girder hook overhead crane is an important lifting equipment widely used in different industries. It plays a key role in workshops, warehouses, steel mills, etc. This general double girder hook overhead crane provides a reliable and efficient solution for lifting, loading, and unloading heavy loads. Its superior design guarantees smooth production and logistics operations
Hooks for overhead cranes can be categorized into 4 types depending on the structure, application and industry standards. When customizing hook overhead crane, please choose the right hook according to the requirement. Below are the characteristics and applications of each hook type:
Universal Hook: Standard single crane hook block design, simple structure, low manufacturing cost, DIN/ISO compliant, safety factor ≥4 times. Suitable for a wide range of routine lifting operations, wide load range (0.5~300 tons), optional forged or laminated structure, and high durability. Widely used in daily material handling in factories and warehouses, construction sites (steel reinforcement, prefabricated parts lifting), bulk cargo loading and unloading in ports and logistics centers.
Swivel Hook: Built-in precision bearings, can rotate 360° freely to prevent wire rope entanglement, adopts double-row angular contact bearings with strong axial and radial load carrying capacity. Some models are equipped with servo control to realize precise positioning (±0.5°), suitable for high-precision lifting or long material anti-rotation requirements. Widely used in shipbuilding (steel plate, pipeline lifting), wind power generation (blade installation), automated production lines (need to be accurately aligned), and so on.
New-style Hook: Adopting high-strength alloy steel and optimized structural design, the weight is reduced by 15%~20% but the strength remains unchanged; it complies with the latest FEM/ISO standards and has a higher safety coefficient. Widely used in high-end manufacturing (aerospace, automotive assembly), intelligent warehousing and logistics (automated lifting systems), heavy machinery (requires high-strength, lightweight hooks) and so on.
Hoist Hook: Designed for electric/manual hoists with standardized interfaces; compact design for small spaces (e.g., low-rise plants); optional quick release design for easy spreader replacement. Widely used in workshop light lifting (1~20 tons), maintenance work (equipment dismantling), production line material transfer (with hoist), etc.
Customized Overhead Crane
Hook overhead crane mainly consists of five core components: metal structure, hoisting mechanism, operating mechanism, electrical system, and safety device.
The trolley travel mechanism is on both ends of the bridge. It can drive the overhead crane along the factory or dock along the rails. This allows the overhead crane to adjust its working position over a wide range. The trolley moves along the rails, which allows flexible positioning of the lifting mechanism. It is responsible for the vertical lifting and lowering of heavy loads. This ensures smooth and safe lifting thanks to a precise transmission system and a braking device. The electrical system provides power to each mechanism of the overhead crane. It also precisely controls its operation, including motors, controllers, limit switches, etc., to ensure safe and accurate operation.
| Modelo | Tipo QD | |||||||||||
| Capacidade de elevação | t | 5 | 10 | 16/3.2 | 20/5 | 32/5 | 50/10 | 75/20 | 100/20 | |||
| Altura máxima de elevação | Levantamento principal | m | 16 | 16 | 16 | 12 | 16 | 12 | 20 | 22 | ||
| Max. lifting height | m | 18 | 14 | 18 | 16 | 22 | 22 | |||||
| Span | m | 10.5-31.5 | 13.5-31.5 | 13-31 | ||||||||
| Velocidade de elevação | Principal | 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 | ||||||
| Velocidade de deslocação do trólei | m/min | 37.2 | 37.2 | 40.0 | 40.0 | 42.6 | 38.5 | 38.4 | 33.90 | |||
| Velocidade de deslocação da grua | 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 | ||||
| Fonte de alimentação | 3 Frase C.A. 50Hz 380V ou outros | |||||||||||
QD overhead traveling cranes are popular in indoor and outdoor industrial and mining facilities, the chemical industry, ferrous metallurgy, railway transportation, ports and terminals, as well as in logistics warehouses, and many other areas.
In the workshops of industrial and mining enterprises, double-girder hook overhead cranes can lift raw materials, semi-finished products, and finished products. This can greatly contribute to the efficient operation of the production process.
For steel and chemical plants, it can move heavy equipment, steel, and chemical raw materials.
No transporte ferroviário, pode ajudar na carga e descarga de mercadorias. Nos terminais portuários, é uma ferramenta poderosa para carregar e descarregar mercadorias, levantar e transportar contentores e mercadorias a granel. Nos armazéns logísticos, pode tratar eficazmente do armazenamento e transbordo de vários tipos de mercadorias.
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