Double Trolley Overhead Cranes: High-Efficiency Handling and Versatile Applications
The double trolley overhead cranes are a special type of overhead cranes that feature two independently operated trolleys. Each trolley is typically equipped with a lifting hook or other lifting device, which can operate simultaneously or independently. This design makes the crane ideal for work scenarios that require handling multiple heavy objects at the same time, such as assembly lines in large factories or shipbuilding yards.
Depending on the type of lifting mechanism, the double trolley overhead cranes can be classified into two types: the winch type and the hoist type. Each type has its own unique design and advantages, making them suitable for different application scenarios.
Double Winches Overhead Cranes
The winch-type double trolley overhead cranes are commonly used in places that require lifting and moving heavy objects, such as steel mills, ports, and shipyards. It is suitable for high-frequency, heavy-load lifting tasks.
Features
- Lifting Mechanism: The winch-type double girder overhead crane uses a winch as its main lifting mechanism. The winch is driven by an electric motor, which winds the steel rope around a drum to lift and lower heavy loads.
- Heavy Load Capacity: Due to the large power output and strong pulling force of the winch, this type of crane is typically suitable for lifting heavy loads, such as in steel mills, shipyards, and heavy machinery manufacturing plants.
- High Stability: The winch-type crane has a more robust structure, making it better able to handle high-intensity and high-frequency operations, particularly excelling in lifting and transporting super-heavy items.
- Ease of Maintenance: The maintenance of the winch is relatively easy due to its simpler structure, lower failure rate, and ease of repairing or replacing parts.
Applications
Case
Four girders and four rails ladle handling crane
(double winches type)
- Lifting weight：180/50t
- Working class： A7
- Max hoisting height：26.5/27m
- Hoisting speed：0.7-7/9.5 m/min
Double Hoists Overhead Cranes
The hoist-type double trolley overhead cranes are commonly used in environments such as warehouses, workshops, logistics centers, and assembly lines, where frequent handling is required but heavy loads are not necessary. It is also suitable for lifting needs with lower heights and smaller spans.
Features
- Lifting Mechanism: The hoist-type double trolley overhead crane uses an electric hoist as its lifting mechanism. The electric hoist drives the hook via a chain or steel rope to lift and lower materials.
- Light to Medium Load Applications: Compared to winch-type cranes, hoist-type cranes are more suitable for light to medium load applications, typically used for handling and loading/unloading relatively lighter items.
- Easy Operation: The electric hoist is compact, lightweight, and has a simple structure, making it ideal for spaces with limited room. It is also easy to operate and control.
- Lower Cost: The manufacturing and maintenance costs of hoist-type cranes are relatively low, making them an ideal choice for small and medium-sized enterprises or projects with limited budgets.
Applications
The winch-type and hoist-type double trolley overhead cranes each have their advantages. Users should choose the appropriate type based on their specific work requirements and operating environment.
Contact us now to learn more about the specifications and prices of double trolley overhead cranes. Let us help you enhance productivity and create more value!
