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The QD double girder overhead crane is a robust and versatile lifting solution engineered for industrial applications requiring high load capacity and operational reliability. Its structural design incorporates two primary girders constructed from welded box-section steel, providing superior strength and resistance to deflection under heavy loads. The crane’s main travel system moves along runway rails, while the hoist trolley traverses on rails mounted atop the main girders. A key design feature is the integration of a walkway platform along the bridge, facilitating safe access for inspection, maintenance, and the installation of conductor systems.
Core Components & Operational Mechanism:
Bridge Structure: Comprises twin box girders welded to end trucks, forming a rigid frame. Bolt-connected splice joints allow for modular disassembly, simplifying transport and onsite assembly.
Trolley & Hoist Unit: The trolley houses the lifting mechanism, including motor, gearbox, drum, and wire rope, enabling precise vertical movement. It moves laterally across the girder span via a dedicated drive system.
Control & Maneuverability: Operators can manage crane functions through multiple interfaces: a pendant station, wireless remote control, or an ergonomic cabin. The cab—available in open or enclosed configurations—features enhanced visibility, adjustable seating, insulation, and optional amenities like air conditioning or communication devices.
Power & Safety Systems: Electrical components, including IP54-rated motors with Class F insulation, are selected for durability. The crane operates on a designated power supply system, with safety mechanisms integrated across all movements.
Technical Highlights:
Advanced Fabrication: Main girders undergo automated welding and non-destructive testing (NDT) to ensure structural integrity and long-term performance.
Smooth Operation: Precision-engineered drives enable controlled acceleration and deceleration, minimizing load swing and mechanical stress.
Enhanced Safety Suite: Includes overload limiters, emergency braking, latch-equipped hooks, rubber buffers, and travel/lifting limit switches to protect both equipment and personnel.
Low-Noise Design: Optimized mechanical components reduce operational sound levels, contributing to a better workplace environment.
Customization & Compliance:
We tailor each crane to your specific operational requirements. Key parameters for quotation include:
Lifting capacity (tonnage)
Span and lifting height
Operating voltage and power supply details
Travel distance and rail specifications
Ambient conditions (e.g., temperature, materials handled)
Our cranes are manufactured in compliance with international standards (CE, ISO, GOST, etc.), with full documentation and test certificates provided. As a factory with in-house engineering and installation support, we ensure that each unit is precision-built, rigorously tested, and backed by a one-year warranty—including ongoing technical support and cost-effective spare parts supply.
It is suitable to work in factories, warehouses and freight yards where the ambient temperature is-10℃-40℃ and the relative humidity is not more than 85%. It is prohibited to work in the environment with inflammable,explosive and corrosive gas. The crane can be furnished with load handling devices such as motor grab, electromagnetic chuck to meet the requirements of hoisting varied types of materials.
This equipment is widely used in hoisting operation.
For example, factory, mines, transport materials in the fix span scope, mechanical processing workshop, metallurgical factory and subsidiary workshop, warehouse, material yard and power plant.
Product Application Scenarios for Hook Double Girder Overhead Crane
The Hook Double Girder Overhead Crane is a robust piece of equipment designed to enhance material handling efficiencies in various industrial settings. Its versatility makes it an essential tool in the following application scenarios:
Manufacturing Facilities: In production environments, this overhead crane facilitates the smooth movement of heavy components and assemblies across different workstations. Whether it’s lifting raw materials or transporting finished products, the crane optimizes workflow and minimizes downtime.
Mining Operations: The crane is ideally suited for mines where it is employed to transport materials within fixed span limits. It efficiently handles the heavy loads required in mining applications, ensuring a safe and effective material transfer process.
Mechanical Processing Workshops: In workshops focused on mechanical processing, the overhead crane aids in the positioning of heavy machinery and tools, streamlining operations and enhancing productivity.
Metallurgical Factories: Within metallurgical environments, this crane can withstand rigorous demands. It efficiently handles the transportation of metal components and works seamlessly with various load handling devices like grabs and electromagnetic chucks, ensuring optimal handling of diverse materials.
Warehousing and Distribution Centers: The overhead crane plays a crucial role in warehousing applications, where it efficiently moves goods within storage facilities. Its ability to facilitate high-capacity loads makes it a vital asset for managing inventories and expediting order fulfillment.
Material Yards: In material storage yards, this crane excels in organizing and retrieving heavy materials, thereby enhancing site organization and safety. It provides the necessary strength and reach required for bulk handling.
Power Plants: In power generation facilities, the crane is utilized for the movement of heavy equipment and components, ensuring that maintenance and operational tasks are carried out smoothly and effectively.
Operating Conditions
The Hook Double Girder Overhead Crane is designed to function optimally within ambient temperature ranges of -10℃ to 40℃ and can operate in relative humidity levels not exceeding 85%. It is crucial to operate this crane in environments free from flammable, explosive, or corrosive gases to maintain safety and equipment integrity.
Versatile Load Handling
To further enhance its capabilities, the crane can be equipped with various load handling devices, such as motor grabs and electromagnetic chucks. This adaptability allows users to tailor the crane’s functionality to meet the requirements of lifting different types of materials, making it a truly multifunctional tool for a wide range of industrial applications.
By investing in the Hook Double Girder Overhead Crane, businesses can significantly improve their material handling processes, leading to increased productivity and operational efficiency across various sectors.
