Looking to boost flexibility and efficiency in your material handling operations? Our cantilever gantry crane is the perfect solution for your heavy lifting needs. Designed with an extended horizontal arm or “cantilever” on one or both sides, this crane provides a greater reach beyond the span of its supporting legs. Whether you’re working in tight spaces or need to access hard-to-reach zones, our cantilever crane ensures superior flexibility and performance for your most demanding tasks.
Types of Cantilever Gantry Cranes
Our cantilever gantry crane for sale is designed to meet diverse industrial needs, offering lifting solutions tailored to specific environments and lifting requirements. These cranes feature a cantilever design, with one or both ends extending beyond the supporting legs, providing additional reach and flexibility. Below are the primary types of cantilever gantry cranes, their features, and applications:
Single Cantilever Gantry Crane
A single cantilever gantry crane has an overhanging beam on one end of the main span.
Features:
- Cantilever on one side only, allowing operations beyond the span on that side.
- Suitable for handling loads adjacent to the crane’s path.
Applications:
- Loading and unloading trucks or railcars parked along one side.
- Facilities where space is limited on one side of the crane, such as warehouses or loading docks.
Double Cantilever Gantry Crane
This type features cantilevers on both ends of the main span, offering extended reach on both sides.
Features:
- Dual overhangs maximize operational range.
- Enhanced stability due to symmetrical weight distribution.
Applications:
- Shipyards, where extended reach is required on both sides of the crane.
- Large industrial facilities that require flexible material handling along both sides of the span.
Project Cases: Real-world Applications of Cantilever Gantry Cranes
Cantilever Rail-mounted Gantry (RMG) Crane in Kazakhstan Logistics Terminal
- Type: RMG crane with double cantilever
- Lifting Capacity: 45 tons under the spreader
- Span: 38 meters
- Lifting Height: 15 meters (4+1 containers)
- Cantilever Arms: 7 meters and 9 meters
- Application: Lifting 20-ft, 40-ft, and 45-ft containers at a logistics terminal
The dual cantilever arms (7m and 9m) on this RMG crane provide extended reach beyond the supporting legs, allowing efficient loading and unloading of containers on adjacent trucks and trains.
Single Cantilever Gantry Crane in Russian Tunnel Construction
- Type: Double girder gantry crane with single cantilever
- Lifting Capacity: 50 tons
- Span: 40 meters
- Lifting Height: 80 meters
- Cantilever: 5 meters (single side)
- Application: Lifting and removing excavated materials from a tunnel
The single 5-meter cantilever arm extends beyond the supporting legs, allowing efficient loading of the excavated materials to transportation vehicles at the cantilever side.
Gantry Crane With Double Cantilever in Kazakhstan Rail Terminal
- Type: Single girder gantry crane with double cantilever
- Lifting Capacity: 20 tons
- Span: 32 meters
- Lifting Height: 15.6 meters
- Cantilever Arms: 8 meters + 14 meters
- Application: Loading and unloading steel at a railway terminal
The cantilever arms (8m and 14m) provide customized reach for handling steel and concrete products efficiently on one side of the railway. This configuration reduces material handling time by enabling direct placement of loads onto railcars or storage areas without repositioning the crane.
Double Cantilever Gantry Crane in Indonesian Precast Concrete Plant
- Type: Single girder gantry crane with double cantilever
- Lifting Capacity: 16 tons
- Span: 12 meters
- Lifting Height: 5 meters
- Cantilever Arms: 4 meters + 4 meters
- Work Duty: A3
- Application: Lifting precast concrete components
The symmetrical cantilever arms extend the coverage area, enabling the crane to lift and position precast concrete elements beyond the main structure for loading, unloading and storage.
Determining the Need for a Cantilever Beam in Gantry Cranes
Determining whether a cantilever beam is necessary for your gantry crane involves assessing the specific requirements of the lifting tasks, site conditions, and operational efficiency goals. Here’s how to approach this decision:
- Lifting Reach and Clearance: If your crane needs to operate in an environment where it must lift materials over obstacles or into areas that would be difficult to access with just the main girder, the gantry crane with cantilever becomes necessary.
- Load Handling Requirements: If your lifting operations involve moving large items that need to be positioned precisely at the edges of the crane’s span, the cantilever can provide more flexibility.
- Site Constraints: If your worksite has limitations such as narrow aisles, close proximity to walls, or tight spaces, a cantilever beam allows the crane to lift loads over these constraints, providing more operational space without the need for a larger overall crane footprint.
- Safety and Precision: Sometimes, a cantilever beam is needed for safety reasons, to keep the crane from getting too close to certain areas or equipment.
Advantages of Cantilever Gantry Cranes
Increased Reach
The cantilever allows the gantry crane to extend its reach beyond the main span of the crane, enabling it to handle loads that are farther from the crane’s base. This is particularly helpful in areas with limited space or where loads need to be placed in areas that are not directly under the crane.
Faster Material Handling
With the additional reach provided by the cantilever, the gantry crane can move materials without needing to reposition itself as frequently. This can reduce the time spent moving between different load positions, improving overall throughput and operational efficiency.
Flexibility in Lifting Operations
The gantry crane with cantilever can provide more flexibility in loading and unloading tasks. It allows the crane to handle a wider variety of loads in different positions, improving its ability to work in complex environments, such as construction sites or industrial settings with multiple obstacles.
Optimization of Space
By extending the gantry crane’s reach without requiring a larger overall structure, the cantilever gantry helps optimize the use of available space. This can be beneficial in congested areas, such as warehouses or shipyards, where space is at a premium.
Installation and After-Sales Service for Cantilever Gantry Cranes
At Aicrane, we specialize in the installation and after-sales service of cantilever gantry cranes, ensuring that each unit performs optimally and safely throughout its lifecycle.
Expert Installation of Cantilever Gantry Cranes
Our installation process follows several key stages:
- Site Assessment and Preparation: Our team conducts a thorough site assessment to determine the ideal positioning for the crane.
- Precision Assembly: The installation of gantry crane involves a series of complex steps. Our expert technicians assemble the crane structure, ensuring that the cantilever arms are correctly aligned, the lifting mechanism is calibrated, and all components are securely fixed.
- Testing and Load Testing: After assembly, the crane undergoes rigorous load testing to ensure that all systems are functioning properly.
- Training and Handover: Our installation team provides hands-on training for operators and maintenance personnel to ensure safe and efficient operations.
Comprehensive After-Sales Service for Cantilever Gantry
Providing ongoing support through our after-sales service is crucial for maintaining the performance and longevity of your cantilever gantry crane. Our after-sales services include:
- Regular Maintenance and Inspections: Our service team provides scheduled inspections and maintenance checks to detect any issues early.
- 24/7 Technical Support: Our customers benefit from 24/7 access to our technical support team, who are ready to assist with any operational concerns.
- Spare Parts Supply: We maintain a large inventory of spare parts, ensuring that any replacement needs are met quickly and efficiently.
Whether you are handling heavy loads in shipping, precast concrete, or any other industry, our cantilever gantry cranes and services are here to support your business growth. Contact us now for a customized quote and discover how we can support your success!
FAQs for Cantilever Cranes
A cantilever gantry crane is a type of gantry crane with one or two cantilevered sections extending beyond the supporting legs. These cantilever arms enhance the crane’s ability to lift and move loads beyond obstacles or restricted spaces.
A Rail Cantilever Gantry Crane is a type of cantilever crane that moves along a fixed rail system. It is designed for precise, heavy-duty lifting and transporting operations. The rail system ensures stability and accuracy, making these cranes ideal for applications such as:
- Loading and unloading in railway yards.
- Moving heavy materials in construction or manufacturing facilities.
- Handling containers in shipping yards.
Consider the following:
- Load Capacity: Ensure the crane meets your maximum lifting needs.
- Span Length: The distance between the crane legs, determined by the work area width.
- Cantilever Length: The extension beyond the legs, based on specific operational needs.
- Lifting Height: Depending on the height of materials to be lifted or obstacles to clear.
- Rail or Tire Mounting: Rail-mounted for fixed pathways, rubber tires for mobility.
- Environmental Conditions: Weather-resistant designs for outdoor use or corrosion-resistant materials for specific industries.
- Single or Double Cantilever Arms: Depending on operational needs.
- Rail Mounts or Mobile Tires: Based on workspace layout.
- Control Modes: Options for cabin control, remote control, or pendant crane.
- Load Attachments: Such as spreaders, grabs, or magnets for specific load types.
How to Maintain and Inspect Your Cantilever Gantry Crane
Given its extended position and the heavy loads it carries, the crane cantilever beam undergoes significant stress during operations, making regular inspection and maintenance essential.
Routine Inspection of the Gantry Crane Cantilever
A thorough inspection is necessary to detect any early signs of wear, damage, or structural issues. Key inspection tasks include:
Visual Inspection:
- Check for cracks or deformations: Inspect the cantilever beam for any visible cracks, bending, or distortion. These may occur due to overloading or prolonged exposure to heavy stress.
- Surface wear: Examine the surface of the beam for signs of corrosion or rust, especially if the crane operates in a harsh environment (e.g., coastal or industrial areas with high moisture).
- Check for loose bolts or fasteners: Ensure that all fasteners are tightly secured, and replace any that are worn or damaged. Loose bolts can compromise the stability of the cantilever beam.
Load Testing:
- Periodically, perform load tests to ensure that the cantilever beam is capable of handling the specified loads. The load test should be conducted according to manufacturer guidelines, and the crane should be tested under maximum load conditions to check for any potential issues.
Alignment Checks:
- Over time, misalignment can occur due to stress and regular use. Ensure that the cantilever beam is correctly aligned with the crane’s support structure. Misalignment can cause uneven loading, leading to excessive wear or failure.
Preventive Maintenance for the Cantilever
Preventive maintenance plays a crucial role in extending the lifespan of the cantilever beam and minimizing unexpected breakdowns. Some essential tasks include:
- Lubrication: Lubricate the moving parts, especially the joints, wheels, and any other components in motion. Regular lubrication reduces friction, prevents premature wear, and ensures smooth operation of the crane.
- Corrosion Prevention: If the cantilever beam is exposed to harsh weather conditions, corrosion can become a significant issue. Apply protective coatings or anti-corrosion treatments to safeguard against rust and other forms of degradation. In areas with extreme weather or saltwater exposure, more frequent protective measures should be implemented.
- Structural Reinforcement: If any signs of wear, such as stress cracks, are detected during inspections, perform structural reinforcement or repair work promptly. Reinforcement may include welding, replacing damaged sections, or adding additional supports to ensure the beam remains robust.
Remember, a well-maintained crane not only improves operational efficiency but also guarantees the safety of your workforce and the protection of valuable equipment. If you need any assistance or have questions regarding the inspection and maintenance of gantry crane, don’t hesitate to contact us.
