Product Description
The 250t+250t double-girder overhead bridge crane is a large-scale lifting equipment featuring two main girders (beams) supported by end carriages running on parallel rails along the length of a workshop or factory. Its key components include:
Main Girders: The two horizontal beams that form the bridge, providing structural support and bearing the lifting load.
Trolley System: A movable cart on the girders equipped with hoisting mechanisms (e.g., winches, wire ropes, and hooks). It can travel transversely (perpendicular to the girders) to position the load.
Crane Traveling Mechanism: Motors and wheels that enable the entire crane to move longitudinally along the rails, expanding the operational range.
Hoisting Mechanism: Comprises motors, reducers, and braking systems to lift and lower loads vertically. For this model, it supports two independent hoisting units (250t each), allowing simultaneous or separate lifting.
Electrical Control System: Includes power supply units, control cabinets, and safety devices (e.g., limit switches, overload protectors) to ensure safe and precise operation.
Features
1.High Lifting Capacity: With a total lifting capacity of 500 tons (250t per hoist), it can handle extremely heavy loads, either as a single combined load or two separate loads.
2.Wide Operational Range:Longitudinal Travel: Moves along the entire length of the workshop via the crane traveling mechanism.Transverse Travel: The trolley can position loads across the width of the girders.Vertical Lifting: Achieves significant lifting heights (typically 6–22 meters) to meet elevated installation requirements.
3.Stable and Reliable Structure:
The double-girder design distributes loads evenly, reducing stress on individual components and minimizing sway during operation.Robust steel construction ensures high rigidity and resistance to deformation under heavy loads.
4.Precision and Safety:
Equipped with advanced control systems for smooth starting, stopping, and speed adjustment.
Safety features include overload protection, emergency stop mechanisms, and anti-collision devices to prevent accidents.
5.Customization:
Span (distance between the two rails) can be tailored to fit workshop dimensions.
Work duty classification (e.g., A5, A6, A7) varies based on operational frequency, with higher classes suitable for heavy-duty, continuous use.
6.This crane optimizes efficiency in heavy-lifting scenarios, combining structural strength, operational flexibility, and safety to meet the demands of industrial applications worldwide.
Application
This crane is designed for heavy-duty industrial environments requiring high lifting capacity and wide operational coverage. Its primary uses include:
Heavy Machinery Manufacturing: Lifting and transporting large components (e.g., machine tools, engine blocks, and industrial molds).
Energy Sector: Installing and maintaining power plant equipment (e.g., transformers, turbines, and nuclear island components in thermal/hydro-power stations).
Construction and Infrastructure: Hoisting prefabricated bridge segments, steel structures, and heavy construction materials in high-rise buildings or bridge projects.
Port and Logistics: Handling oversized cargo, industrial equipment, or marine components in ports and logistics hubs.
Steel and Metal Industries: Moving steel plates, beams, and raw materials in steel mills and metal processing plants.
Lifting machinery
steel structure engineering
