The double trolley overhead crane is composed of multiple components such as motors, reducers, brakes, sensors, control systems, lifting mechanisms, and trolley brakes. Its main feature is to support and operate the lifting mechanism through a bridge structure, with two trolleys and two main beams. These components work together to enable the crane to move and lift horizontally and vertically.
The working principle of the double trolley bridge crane is as follows: First, the drive motor drives the main beam to run through the reducer. One or more lifting mechanisms are installed on the main beam, which can move along the direction of the main beam and the direction of the trolley. The lifting mechanism usually consists of wire ropes, pulleys, hooks and clamps, etc., which can be replaced or adjusted as needed. Next, there is also a motor and brake on the trolley, which can run along the trolley tracks above and below the main beam and provide horizontal movement. The motor on the trolley drives the trolley wheels through the reducer to realize the lateral movement of the goods.
During the lifting process, the crane operator uses the control system to control the motor and brakes so that the lifting mechanism grabs the cargo and lifts it. Then, the trolley and the main beam move together to move the goods from one location to another, and finally complete the loading and unloading task. Sensors monitor the crane’s operating status and load conditions to ensure safe operation.
Twin trolley axle cranes offer several advantages. First of all, due to the bridge structure, it can cover a larger working range and is suitable for large-scale lifting tasks. Secondly, the double trolley design allows the crane to perform multiple tasks at the same time, improving work efficiency. In addition, the flexibility of independent operation of the twin trolleys allows the crane to cope with complex working scenarios and requirements.
Double trolley overhead cranes are widely used in various industrial fields. They are commonly found in industries such as ports, terminals, manufacturing, warehousing and logistics. In ports and terminals, twin-trolley overhead cranes are used for loading and unloading containers and heavy cargo. In manufacturing, they are used to move and install large machinery and equipment. In the warehousing and logistics sector, twin trolley overhead cranes are used for efficient handling and storage of goods.
In short, the double trolley bridge crane is a powerful lifting equipment that achieves flexible and efficient heavy object lifting and unloading operations through the design of the bridge structure, double trolleys and double main beams. Their working principle is simple and straightforward, but operation and control require professional skills and experience. In various industrial fields, double trolley overhead cranes play an important role, improving work efficiency and promoting industrial development.
Henan Seven Industry Co., Ltd. is mainly engaged in: single and double girder gantry cranes and supporting electrical appliances, intelligent freight elevator electrical appliances, non-standard electromechanical equipment supporting electrical products, etc. And our product application fields cover metallurgy, glass, steel coils, paper rolls, garbage cranes, military industry, ports, logistics, machinery and other fields.
SEVENCRANE’s products have good performance and reasonable prices, and are highly praised and trusted by our customers! The company always adheres to the principle of quality assurance and customer first, providing pre-sales technical solution demonstration, standardized production, and after-sales installation and maintenance one-stop services !
English 
Español 
Русский 
