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A Double Girder Bridge Crane is a type of overhead crane. It feature end trucks that operate on fixed rails attached to the top flange of runway girders or beams.Double girder cranes provide higher lift capacity than single girder cranes, because the hoist is placed between the two cross girders rather than under a single girder. Therefore, the depth of the cross girder is gained in switching to double girders.Double girder cranes are designed for heavier capacities and often have a continuous duty cycle. These cranes are motorized and typically feature radio controls.
A Double Girder Gantry Crane is a type of gantry crane that features two parallel bridge girders supported by legs on either side. This design provides increased stability, strength, and lifting capacity compared to single girder gantry cranes. The girders are typically connected by a crossbeam, creating a box-like structure.
Heavy Lifting Capability
One of the primary advantages of Double Girder Overhead Cranes lies in their robust capacity for heavy lifting. Designed with dual girders spanning the width of the crane, these systems provide unparalleled strength and stability. This capability proves crucial in industries where the movement of substantial loads is a routine requirement.
Versatility in Applications
Double Girder Overhead Cranes are versatile workhorses, adaptable to a wide range of applications. Whether it's in manufacturing, construction, or warehousing, these cranes excel in handling diverse loads with precision. Their flexibility makes them an ideal choice for businesses with varying material handling needs.
Increased Span and Coverage
The dual girder design allows for increased span and coverage, enabling the crane to reach areas that might be challenging for single girder alternatives. This extended reach optimizes the utilization of workspace, facilitating efficient movement of materials across the entire floor.
Enhanced Control and Precision
Modern Double Girder Overhead Cranes come equipped with advanced control systems, providing operators with enhanced precision and control. This not only improves the safety of operations but also contributes to increased efficiency by minimizing downtime and reducing the risk of errors.
Improved Hook Height
The design of Double Girder Overhead Cranes allows for a higher hook height compared to single girder alternatives. This feature is especially beneficial when dealing with larger or irregularly shaped loads, providing ample clearance and making material handling more efficient and secure.
Durability and Longevity
Investing in Double Girder Overhead Cranes is a commitment to durability and longevity. The robust construction and use of high-quality materials ensure that these cranes withstand the rigors of industrial environments, resulting in reduced maintenance costs and prolonged operational life.
Types of Double Girder Gantry Crane
Full Gantry Cranes
These are double-legged gantry cranes with the main girder supported on two legs of equal height, offering exceptional safety, durability, and cost-effectiveness due to the lack of supporting columns or building structures. Double girder gantry cranes with complete gantry crane designs are commonly used for heavy-duty, large-volume, or difficult-to-handle loads, and they may be used in severe environments with process crane designs.
Semi Gantry Cranes
Single Leg Gantry Cranes are a variation of standard gantry cranes with one end supported by a leg running on the ground rail and the other end travelling overhead on a wall mounted track. Single-leg semi-gantry cranes are a cost-effective alternative for factories or applications with packed machinery or tight locations.
Box Girder Gantry Cranes
The box-shaped gantry girder is made of steel plates and has great safety, rigidity, and other characteristics. For double girder gantry cranes with big and super large tonnages, the box gantry girder design is commonly employed. High production costs, hefty self weight, and poor.
Drilling Rig Assembly and Maintenance
Lifting Heavy Components: Double girder gantry cranes are used to lift and position heavy drilling rig components during assembly and maintenance. This includes lifting drill pipes, blowout preventers, and other essential equipment.Precision Placement: The crane's precise control allows for accurate placement of components, ensuring efficient and safe assembly.
Storage Yard Operations
Handling Pipes and Tubular Goods: In storage yards, these cranes are used to handle large volumes of pipes and tubular goods. Their high load capacity and wide span make them ideal for moving long and heavy pipes.Material Organization: The crane helps in organizing materials efficiently, reducing handling time and improving inventory management.
Fabrication and Construction
Structural Steel Handling: Double girder gantry cranes are used in the fabrication of oil platforms and other structures. They lift and position large steel beams and components during construction.Prefabricated Modules: The crane is essential for handling prefabricated modules, facilitating their assembly into larger structures.
Refinery Operations
Equipment Maintenance: In refineries, double girder gantry cranes are used to lift and transport heavy equipment for maintenance and repair. This includes pumps, heat exchangers, and other critical machinery.Loading and Unloading: The crane is also used for loading and unloading equipment and materials from transport vehicles.
Bridge
The horizontal beam that spans the gap and carries the lifting mechanism. In single girder gantry cranes, there's one bridge, while double girder gantry cranes have two.
Legs or Vertical Columns
These support the bridge and provide stability to the crane. The design and number of legs vary based on the type and load capacity of the crane.
Hoist
The hoist is the lifting mechanism that raises and lowers the load. It can be electric, manual, or hydraulic, depending on the crane's specifications.
Trolley
The trolley is a component that moves along the bridge, enabling the crane to traverse horizontally.
End Trucks
These are part of the trolley and support the hoist. They facilitate the lateral movement of the crane along the bridge.
Controls
Double Girder Gantry Crane are operated through a control system that allows the operator to manage the hoisting, lowering, and traversing functions with precision.
Load Capacity
The load capacity is a crucial factor to determine before purchasing a double girder overhead crane. Evaluate the maximum weight you need to lift and handle regularly, as well as any potential future load requirements. Double girder overhead cranes typically have higher load capacities compared to single girder cranes, making them suitable for heavy-duty applications.
Span and Lifting Height
Evaluate the span (the horizontal distance between the runways) and the lifting height required for your lifting operations. Different types of double girder overhead cranes are designed to accommodate varying spans and lifting heights. Ensure that the crane you choose can cover the entire working area while providing sufficient lifting height for your specific needs.
Duty Class and Usage Frequency
Consider the duty class and usage frequency of the crane. Duty class refers to the intensity and duration of crane operation. Determine whether your application requires light-duty, medium-duty, or heavy-duty operations. Additionally, consider how frequently the crane will be used on a daily or weekly basis. This information will help you select a crane that can withstand the expected workload and provide optimal performance and longevity.
Speed and Control Options
Evaluate the desired speed and control options for your overhead crane. The speed of the crane, including lifting, trolley travel, and bridge movement, should align with your operational needs. Consider the productivity gains and safety aspects associated with faster lifting and transportation speeds. Additionally, explore control options such as pendant control, radio remote control, or cabin control to ensure ease of operation and efficiency.
Environmental Factors
Assess the environmental conditions in which the crane will operate. Factors such as temperature, humidity, dust, and corrosive substances can impact crane performance and longevity. Select a double girder overhead crane that is built with appropriate protective features and materials to withstand the specific environmental challenges of your work environment.
Safety Features
Safety should be a top priority when choosing an overhead crane. Look for safety features such as overload protection systems, emergency stop buttons, limit switches, and anti-collision devices. These features help prevent accidents, protect personnel, and safeguard valuable equipment during crane operation.
How to Install A Double Girder Gantry Crane Properly
Planning and Site Preparation
Before commencing the installation, a comprehensive plan must be developed to determine the ideal location for the Double Girder Gantry Crane. Factors such as load-bearing capacity, accessibility, and proximity to the operation area must be carefully considered. Site preparation involves clearing the designated area, ensuring a level foundation, and implementing any necessary structural enhancements to support the crane's weight and dynamic loads.
Foundation Construction
A robust foundation is crucial for the stability and safety of the Double Girder Gantry Crane. The foundation design must comply with engineering standards and specifications, taking into account the crane's capacity and the characteristics of the site. Concrete is commonly used for foundation construction, and it must be cured and inspected to ensure durability and load-bearing capability.
Assembly of Structural Components
The assembly of structural components involves erecting the main girders, end trucks, and other essential elements of the double girder gantry crane. Precision is paramount during this stage, as any misalignment can lead to operational issues and compromise safety. Skilled technicians must follow manufacturer guidelines and blueprints to ensure accurate assembly and alignment.
Installation of Hoisting Mechanism
The hoisting mechanism is a critical component of the double girder gantry crane responsible for lifting and lowering loads. The installation process involves mounting the hoist trolley, attaching the wire ropes or chains, and connecting the hoist to the electrical control system. Attention to detail is essential to guarantee proper functioning and load capacity.
Electrical Wiring and Controls
The electrical wiring and control system are integral to the operation of the double girder gantry crane(козловой кран 50 тонн цена). Qualified electricians must install and connect power cables, control panels, and safety features according to industry standards. Thorough testing of the electrical components is essential to identify and rectify any issues before commissioning the crane.
Safety Features Installation
Safety is of utmost importance in crane operation. Installing safety features such as limit switches, overload protection devices, emergency stop buttons, and warning systems is a critical step in the installation process. These features enhance the overall safety of the double girder gantry crane and protect both personnel and equipment.
How to Maintain Double Girder Gantry Crane
The Role of Maintenance: Preserving Performance
Maintenance serves as a proactive approach to ensure that Aicrane double girder gantry cranes function optimally. Regular maintenance minimizes wear and tear, addresses potential issues before they escalate, and extends the crane's lifespan. This not only safeguards the equipment investment but also enhances safety for operators and the surrounding environment.
Components Requiring Attention
Several key components of double girder gantry cranes require regular attention and maintenance:Structural Integrity: Inspect the crane's structure, including the girders, trolley, and connections, for signs of corrosion, cracks, or fatigue.Hoisting Mechanism: Examine the hoist unit, ropes, and hooks for wear, proper lubrication, and proper operation.Electrical Components: Check the wiring, control panels, and sensors to ensure they are functioning correctly and free of corrosion.Safety Devices: Verify the functionality of limit switches, emergency stop buttons, and anti-collision systems.
Scheduled Maintenance: A Preventive Approach
Adopting a scheduled maintenance approach is key to preventing unexpected breakdowns and disruptions. Some maintenance tasks include:Routine Inspections: Conduct regular visual inspections to identify early signs of wear or damage.Lubrication: Ensure all moving parts, such as gears and bearings, are well-lubricated to reduce friction and extend their lifespan.Tightening and Alignment: Regularly check and tighten bolts, nuts, and connections to prevent loosening due to vibrations and heavy loads.Electrical Checks: Test the functionality of electrical components and controls to prevent operational issues.
Servicing: Addressing Complex Needs
While maintenance focuses on routine tasks, servicing delves into more complex and specialized aspects:Component Replacement: When components show signs of significant wear or damage, timely replacement is essential to prevent failures.System Calibration: Calibration of controls, sensors, and safety devices ensures accurate and reliable operation.Major Overhauls: Periodic major overhauls involve a comprehensive inspection, replacement of worn parts, and refurbishment to restore the crane's performance.
Our Factory
Wuhan Rayvanbo Import＆Export Trade Co.,Ltd.is a leading provider of lifting equipment and solutions, specializing in the design, manufacturing, installation, and maintenance of a wide range of lifting systems. With a strong commitment to safety, quality, and innovation, we have.Our team of experienced engineers and technicians work closely with clients across various sectors, including construction, manufacturing, logistics, and transportation, to deliver customized lifting solutions that meet their unique requirements. Whether it's heavy-duty cranes, hoists or specialized lifting accessories, we provide cutting-edge equipment that enhances operational efficiency and ensures worker safety.
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