Introducing Three Common Applications of Aicrane Straddle Cranes
Straddle carrier cranes are indispensable tools in various industrial sectors, thanks to their unique design and versatility. Typical applications include concrete precast industry, external logistics warehouses, wind energy, tunnel construction, road and bridge construction, power plants, heavy boilers, ports, and shipyards, among others. Here we will explore three common applications of straddle carriers:
Straddle Cranes for Prefabrication Yards
Prefabrication yards are bustling hubs where large-scale components, such as concrete panels, steel beams, and even entire modules, are manufactured off-site and later transported to the construction site. Straddle lift cranes play a crucial role in these precast yards by providing the means to move, stack, and load these massive prefabricated elements.
Function and Purpose of Straddle Carrier in Prefabrication Yard
- Concrete Beam Transport: Straddle carrier gantry cranes effortlessly move and stack precast concrete beams onto their designated locations with unparalleled precision.
- Loading onto Transport Vehicles: These cranes are equipped to efficiently load concrete beams onto transport vehicles, ensuring a seamless transition from the precast yard to the construction site.
- Versatile Lifting: Beyond concrete beams, our precast yard gantry cranes can also handle other materials like steel reinforcements and modules within its rated lifting capacity, contributing to various tasks crucial for precast yard operations.
Prefabrication Yard Straddle Crane Specifications
| Rated Lifting Capacity | 50~800t |
|---|---|
| Span | 5~40m |
| Maximum Lifting Height | 5~20m |
| Steering Mode | independent steering driven by hydraulic cylinders |
| Travel Mode | Hydraulic-driven tires |
| Trolley Travel Speed (Full Load) | 0~5m/min |
| Trolley Travel Speed (Empty Load) | 0~10m/min |
| Trolley Hoisting Speed (Empty Load) | 0~6m/min |
| Trolley Hoisting Speed (Full Load) | 0~3m/min |
| Crane Full Load Travel Speed | 0~10m/min (on flat terrain) |
| Crane Empty Load Travel Speed | 0~20m/min (on flat terrain) |
| Working Environment Temperature | 0°C~+50°C |
| Working Environment Wind Force | working state ≤ grade 6 (wind speed 20m/s), non-working state ≤ class 11 (wind speed 42m/s) |
Different Working Methods of Precast Yard Gantry Cranes
Our straddle carrier gantry cranes are designed to accommodate different types of precast concrete beams, ensuring flexibility and adaptability in your operations:
- Dual-Point Lifting: For box beams, U-beams, T-beams, and I-beams, our cranes can perform dual-point lifting and transport. Alternatively, two rubber tired gantry cranes can work in tandem to lift and move these larger concrete elements efficiently.
- Single-Point Lifting: In the case of segmental beams, our straddle carriers are equipped for single-point lifting and transport, providing precise control during handling.
Cases of Straddle Cranes in Prefabrication Yards
Case One: 300 Ton Straddle Crane for U-Beam Handling
This 300 ton crane is used to handle U-shaped concrete beams within a precast yard. It can effortlessly lift, transport (both longitudinally and laterally), and load these concrete beams onto transport vehicles, catering to various lengths and configurations. Its robust construction and advanced hydraulic systems ensure precise control and efficiency in all operations.
The specifications of the 300 ton crane include: rated lifting capacity 300 tons, span 40.6m, maximum lifting height 12m, independent steering driven by hydraulic cylinders, hydraulic-driven tires, slope climbing capability ± 2%.
Case Two: 800 Ton Straddle Lift Cranes For Efficient Box Beam Handling
The 800 ton straddle crane operates collaboratively with another crane to efficiently transport precast box beams from the production area to storage and beam lifting stations. The specifications of the 800 ton crane include: rated lifting capacity 800 tons, span 23m, lifting height (from ground to top of box beam) 11m, independent steering driven by hydraulic cylinders, hydraulic-driven tires, slope climbing capability ± 2%.
Straddle Crane for Cross-line Construction
In the construction industry, particularly when building bridges and viaducts, the need for precision, efficiency, and safety is essential. Our cranes for bridge construction are designed specifically for the installation of prefabricated bridge segments, simplifying the complex task of bridging gaps with precision.
Function and Purpose of Straddle Crane for Construction Cross Lines
- Lifting and Transport: These cranes efficiently lift prefabricated segments from transport vehicles and transport them to the installation location.
- Installation and Alignment: Once in position, these straddle carrier gantry cranes meticulously install, align, and assemble the prefabricated segments, ensuring a perfect fit and structural integrity.
Cross-line Construction Straddle Crane Specifications
| Rated Lifting Capacity | 50~800t |
|---|---|
| Span | 10~40m |
| Lifting Height (from the ground to the top of the box girder) | 5~40 m |
| Steering Mode | independent steering driven by hydraulic cylinders |
| Travel Mode | Hydraulic-driven tires |
| Slope Climbing Capability | ± 2% |
| Trolley Travel Speed (Full Load) | 0~5m/min |
| Trolley Travel Speed (Empty Load) | 0~10m/min |
| Trolley Hoisting Speed (Empty Load) | 0~6m/min |
| Trolley Hoisting Speed (Full Load) | 0~3m/min |
| Crane Full Load Travel Speed | 0~15 m/min (on flat terrain) |
| Crane Empty Load Travel Speed | 0~30 m/min (on flat terrain) |
| Working Environment Temperature | 0°C~+50°C |
| Working Environment Wind Force | working state ≤ grade 6 (wind speed 20m/s), non-working state ≤ class 11 (wind speed 42m/s) |
Different Working Methods of Cross-line Construction Straddle Crane
Our cranes are adaptable to different bridge configurations:
- For bridges with dual spans, cranes with double trolley can operate simultaneously, boosting construction efficiency.
- For single-span bridges, a crane with single trolley can handle the task efficiently. The crane is equipped with a rotating lifting device for precise adjustments.
Cases of Straddle Carriers for Cross-line Construction
Case One: 180 Ton Straddle Crane for Handling Prefabricated Bridge Segments
This 180 ton crane excels in handling prefabricated bridge segments. This crane ensures precision in lifting, transporting, and installing segments, even in challenging terrains, thanks to its hydraulic-driven tire system and independent steering. Specifications of the 180 rubber tired straddle crane include: rated lifting capacity 180 tons, span 18m, lifting height (from ground to the top of the bridge segment) 15m, number of hydraulic suspension 8.
Case Two: 200 Ton Straddle Crane for Dual-span Bridge Construction
The 200 ton rubber tyred straddle crane is used for cross-line installation of prefabricated bridge segments, including lifting prefabricated segments from the transport vehicle, cross-line transporting to the installation position, and installing, aligning and assembling the prefabricated segments. Featuring a dual trolley lifting structure, the crane allows for simultaneous construction on both sides, greatly enhancing efficiency in cross-line construction.
Specifications of the 200 ton straddle carrier crane include: rated lifting capacity 200 tons, span 40m, lifting height (from ground to the top of the bridge segment) 14.5m, independent steering driven by hydraulic cylinders, hydraulic-driven tires, number of hydraulic suspension 16, tire model 26.5R25.
Straddle Crane for Specialized Use
Straddle cranes are designed to be exceptionally mobile and flexible. Their ability to move around easily makes them ideal for a variety of specialized tasks, including tunnel construction, port operations, and large-scale manufacturing facilities. What sets them apart is their adaptability to the specific needs of the job at hand.
Case of a Specialized 100 Ton Straddle Crane for Tunnel Construction
This 100 ton crane is specially designed to meet the unique challenges of tunnel roof installation. Tunnel construction often takes place in confined spaces, making it crucial for equipment to be maneuverable. The rubber tyred gantry crane is equipped with wheels that allow it to navigate tight spaces and move effortlessly within tunnels, ensuring efficient operation.
Specifications of the 100 ton straddle srane include: rated lifting capacity 100 tons, span 18m, lifting height (from the ground to the top of the box girder) 15 m, independent steering driven by hydraulic cylinders, hydraulic-driven tires, slope climbing capability ± 2%, number of hydraulic suspension 8.
Aicrane’s Custom Straddle Crane Solutions Designed for Your Unique Needs
At Aicrane, we are committed to delivering tailored straddle crane solutions that perfectly align with your unique specifications and requirements. With decades of expertise as a reliable straddle crane supplier, we understand that every industrial setting demands distinct materials handling solutions. That’s why our dedicated team of engineers and project consultants works closely with you to create cranes that optimize efficiency, safety, and productivity in your specific applications. Whether you operate in a precast yard, a construction site, or any other specialized use, Aicrane ensures that our straddle lift cranes are custom-engineered to meet your exact needs. We are your trusted partner in lifting solutions, offering reliability and innovation with every tailored crane we provide.
The Core Components of a Straddle Carrier Gantry Crane
The straddle crane consists of several core components that work in tandem to achieve its lifting and moving capabilities. These components include:
Main Girder
- The main girder forms the structural backbone of the crane. It provides support for various components and bears the weight of the load. The main beam’s design ensures stability and safety during lifting operations.
Legs (Supporting Structure)
- The legs, also known as the supporting structure, provide stability to the crane. These vertical elements are responsible for distributing the crane’s load to the ground and maintaining its balance during lifting and movement.
Hoisting System
- The hoisting system is responsible for raising and lowering the load. It consists of a hoist mechanism that includes a drum, wire rope, and hook or spreader. This system ensures controlled and precise lifting operations.
Crane Running System
The crane running system in a mobile straddle crane is distinct from that of a rail mounted gantry crane. It includes a frame, wheel assemblies, drive axles, suspension components, steering systems, and support mechanisms.
- The cranes usually employ radial tires for enhanced load distribution and reduced wear. For specific requirements, solid puncture-proof tires might be used.
- The steering mechanism enables the crane to change direction and navigate its path. Hydraulic cylinders are commonly used to achieve steering, allowing the crane to move forward, backward, and sideways.
- The drive system, often referred to as the powertrain, propels the crane forward or backward. It consists of hydraulic motors or electric motors, depending on the crane’s configuration, which drive the wheels through reduction gearboxes.
- The suspension system supports the crane’s weight and allows it to adapt to uneven surfaces. Hydraulic suspension systems enable the crane to climb slopes and maintain stability during operation.
- For heavier loads, support cylinders are often installed under the crane running mechanism to provide additional stability during lifting and moving.
Aicrane’s Comprehensive After-Sales Service for Straddle Cranes
Aicrane’s after-sales service is a testament to its dedication to customer satisfaction and its understanding of the vital role that quality service plays in the lifespan of lifting equipment. From the moment a straddle crane becomes part of a customer’s operation, Aicrane’s support ecosystem kicks into action, encompassing various critical components:
- Installation and Commissioning: Aicrane’s team of skilled technicians and engineers takes charge of the installation and commissioning process. This meticulous approach ensures that the crane is set up correctly, adhering to safety standards and operational requirements.
- Staff Training: To empower customers with the skills and knowledge needed to maximize the crane’s potential, Aicrane provides comprehensive staff training. This training covers a range of aspects, from safe operation to maintenance procedures, ensuring that operators are proficient in utilizing the crane effectively.
- Maintenance and Servicing: Regular maintenance is crucial to prolonging the life of cranes and preventing unexpected downtime. Aicrane offers routine maintenance packages that include thorough inspections, lubrication, parts replacement, and adherence to preventive maintenance schedules.
- Troubleshooting and Repairs: In the event of unexpected issues or breakdowns, Aicrane’s after-sales service steps in with rapid and efficient troubleshooting and repair solutions. The company’s network of experienced technicians is well-equipped to diagnose problems and provide timely repairs, minimizing operational disruptions.
- Spare Parts Supply: Aicrane ensures a readily available supply of genuine spare parts. This eliminates the need for customers to source parts from third parties, guaranteeing compatibility and reliability.
- Remote Monitoring and Support: Leveraging modern technology, Aicrane group offers remote monitoring and support services. This allows technicians to monitor the crane’s performance in real-time, identify anomalies, and provide proactive solutions before potential issues escalate.
