Overhead cranes, also known as bridge cranes or EOT cranes, are highly efficient and safe lifting solutions. They are versatile in handling a variety of materials and loads, making them ideal for use in industries such as manufacturing, warehousing, metal smelting, metal fabrication, precast concrete production, and more. With extensive experience in the material lifting and handling industry, our team can help you choose and specify the most suitable overhead bridge crane system to enhance your operational efficiency and safety.
Overhead Crane Types: For General Lifting Tasks
We offer a wide range of overhead bridge crane solutions tailored for general lifting tasks in workshops, warehouses and other industrial facilities. Our overhead cranes for sale come in different types and configurations: single girder, double girder, top running, and underhung crane system.
Double Girder Overhead Crane
Double girder over head crane for sale features two parallel bridge girders with a hoist trolley running on rails attached to the top of the girders. This type of crane is more robust and can handle heavier loads compared to single girder cranes. Here are the various models of double girder overhead cranes we offer:
AQ-QD General Double Girder Overhead Crane
- Designed for Heavy-Duty Tasks: Handles high lifting capacities and demanding applications.
- Stronger Structure: More robust than single girder overhead cranes, suitable for larger loads.
- Ideal for Large Facilities: Perfect for heavy industrial plants, large-scale warehouses, and production areas needing high performance and reliability.
AQ-QDX European Standard Double Girder Crane
- Built to European Standards: Meets strict European design criteria.
- Frequency Conversion Technology: Ensures smooth, stable operation with precise control.
- Efficient and Low Maintenance: Reduces maintenance needs and improves operational efficiency, suitable for consistent performance and safety.
AQ-LH Double Girder Overhead Electric Hoist Crane
- Compact and Lightweight: Requires less building clearance and exerts less wheel pressure.
- Cost-Effective Solution: Suitable for facilities with space and budget constraints.
- Medium-Duty Applications: A3 and A4 work duty, less heavy-duty compared to other types of double girder bridge cranes, but good for applications needing space efficiency and affordability.
AQ-NLH European Standard Electric Hoist Crane
- Compact and Lightweight Design: Features an attractive design and reduced dead weight.
- Frequency Conversion Technology: Provides smoother operation.
- Higher Work Duty Capability Than AQ-LH Model: Can handle A5 work duty and even higher, making it efficient for more rigorous tasks compared to AQ-LH hoist bridge crane.
Single Girder Overhead Crane
Single girder overhead crane machine consists of one main bridge girder supported on two end trucks with a hoist that moves along the girder. This type of crane is ideal for light to medium-duty lifting operations and is often used in workshops, warehouses, and small manufacturing facilities. Take a look at the different models of single girder overhead cranes we provide:
AQ-LD General Single Girder Overhead Crane
The AQ-LD single girder bridge crane for sale offers a cost-effective solution for light-duty lifting tasks. Its key features include:
- Versatility: Suitable for various small to light-duty lifting operations.
- Simplicity: Designed with straightforward mechanics for easy use.
- Low Maintenance: Simple design ensures minimal maintenance requirements.
AQ-HD European Standard Single Girder Crane
The AQ-HD European standard overhead bridge crane for sale incorporates advanced technology to enhance lifting operations. The European standard overhead cranes are suitable for manufacturing, assembly lines, and maintenance facilities, where precision and safety are paramount.
- Advanced Features: Includes frequency conversion and double-speed lifting mechanisms.
- Precision and Control: Ensures smooth and accurate lifting, improving stability.
AQ-LX Underhung Crane
The AQ-LX underhung bridge cranes (also known as an underslung overhead crane) are designed to be suspended from the building’s roof structure:
- Space Efficiency: Operates on the bottom flange of the runway beam, making it an excellent solution for facilities with limited headroom or where there are no supporting columns for a top running overhead crane system.
- Light duty applications: Suitable for small to light duty lifting operations, handling loads up to 10 tons.
Other Types of Overhead Cranes: For Specific Lifting Tasks
Beyond overhead cranes for general lifting applications, we provide specialized over head cranes to address specific lifting requirements in unique and challenging environments.
Explosion Proof Cranes
These cranes are specifically designed for operation in hazardous environments such as chemical plants, coal mines, and factories handling explosive and flammable substances.
Built to stringent safety standards, explosion proof cranes are equipped with special components including explosion-proof hoists, explosion-proof motors, electrical enclosures, and more that prevent sparks and ensure safe operations.
Metallurgical Overhead Cranes
Tailored for the metallurgical industry, these cranes are used in various stages of steel production, such as transporting molten metal, handling hot steel, or moving heavy steel coils.
Key types of steel mill cranes we offer include ladle cranes for transporting molten metal, charging cranes for loading furnaces with raw materials, billet handling cranes for moving billets and blooms with specialized tools like clamps or magnets, and slab handling cranes for lifting and transporting heavy steel slabs using magnetic or hydraulic tongs, etc.
Magnetic Overhead Cranes
Ideal for handling magnetic ferrous metal products, the magnetic overhead cranes are equipped with powerful magnets for lifting and transporting steel ingots, section steel, pig iron blocks, steel scraps, and other magnetic materials.
They are extensively used in steel mills, scrap yards, and material handling facilities where efficient and safe magnetic lifting is essential.
Grab Overhead Cranes
Designed for bulk material handling, grab bridge cranes come with specialized grab buckets for lifting and moving loose materials such as sand, gravel, coal, and grain.
They are widely used in warehouses and industrial plants where continuous and efficient bulk material handling is required.
Overhead Crane Specifications
Our comprehensive range of over head bridge cranes, whether for general lifting or specific lifting tasks, is available in various specifications to suit different lifting requirements. Explore the different specifications of our overhead cranes below to find the ideal solution for your needs.
Single Girder Overhead Crane Specifications
| Technical Parameter of AQ-LD General Type Single Girder Overhead Crane | |||||
| Capacity | t | 10 | 16 | 20 | 25 |
| Span | S(m) | 7.5~31.5 | 7.5~31.5 | 7.5~31.5 | 7.5~25.5 |
| Lifting height | m | 9~30 | 9~30 | 9~30 | 9~30 |
| Lifting speed | m/min | 7（0.7/7） | 3.5（0.35/3.5） | 3.3（0.33/3.3） | 3（0.3/3） |
| Trolley speed | m/min | 20(30) | 18 | 14 | 16 |
| Crane speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) |
| Work duty | A3~A4 | A3~A4 | A3~A4 | A3~A4 | |
| Track type | P24 P30 | P30 P38 | P38 P43 | P38 P43 | |
| Technical Parameter of AQ-LX Single Girder Underhung Crane | ||||
| Capacity | t | 3 | 5 | 10 |
| Span | S(m) | 3~22.5 | 3~22.5 | 3~22.5 |
| Lifting height | m | 6~30 | 6~30 | 9~30 |
| Lifting speed | m/min | 8（0.8/8） | 8（0.8/8） | 7（0.7/7） |
| Trolley speed | m/min | 20(30) | 20(30) | 20(30) |
| Crane speed | m/min | 20(30) | 20(30) | 20(30) |
| Work duty | A3~A4 | A3~A4 | A3~A4 | |
| Technical Parameter of AQ-HD European Type Single Girder Overhead Crane | |||||
| Capacity | t | 10 | 12.5 | 16 | 20 |
| Span | S(m) | 7.5~28.5 | 7.5~28.5 | 7.5~28.5 | 7.5~28.5 |
| Lifting height | m | 6~18 | 6~18 | 6~18 | 6~18 |
| Lifting speed | m/min | 0.8/5 | 0.66/4 | 0.66/4 | 0.53/3.4 |
| Trolley speed | m/min | 2~20 | 2~20 | 2~20 | 2~20 |
| Crane speed | m/min | 3~30 | 3~30 | 3~30 | 3~30 |
| Work duty | A5 | A5 | A5 | A5 | |
| Track type | P30 | P30 | P30 P38 | P30 P38 | |
Double Girder Overhead Crane Specifications
| Technical Parameter of AQ-QDX European Standard Double Girder Overhead Crane | |||||||
| Capacity | t | 5 | 10 | 16 | 20 | 32 | 50 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~18 | 6~18 | 6~18 | 6~18 | 6~16 | 6~16 |
| Lifting speed | m/min | 1.07~10.7 | 0.81~8.1 | 0.73~7.3 | 0.58~5.8 | 0.49~4.9 | 0.4~4 |
| Trolley speed | m/min | 3.3~33 | 3.3~33 | 3.2~32 | 3.2~32 | 3.36~33.6 | 2.9~29 |
| Crane speed | m/min | 6.8~68 | 6.8~68 | 5.4~54 | 5.4~54 | 5.6~56 | 5.4~54 |
| Work duty | A3~A5 | A3~A5 | A3~A5 | A3~A5 | A3~A5 | A3~A5 | |
| Track type | P38 | P38 P43 | P43 | P43 | QU70 | QU80 | |
| Capacity | t | 75 | 100 | 160 | 200 | 250 | 320 |
| Span | S(m) | 10.5~31.5 | 13~31 | 13~31 | 13~31 | 13~31 | 13~31 |
| Lifting height | m | 6~24 | 6~24 | 6~24 | 6~20 | 6~20 | 6~24 |
| Lifting speed | m/min | 0.37~3.7 | 0.32~3.2 | 0.25~2.5 | 0.24~2.4 | 0.21~2.1 | 0.2~2 |
| Trolley speed | m/min | 2.92~29.2 | 2.9~29 | 2.65~26.5 | 2.5~25 | 2.5~25 | 2.4~24 |
| Crane speed | m/min | 4.8~48 | 5.26~52.6 | 4.67~46.7 | 5.2~52 | 5.2~52 | 4.15~41.5 |
| Work duty | A3~A5 | A3~A5 | A3~A5 | A3~A5 | A3~A5 | A3~A5 | |
| Track type | QU100 | QU100 | QU120 | QU120 | QU120 | QU120 |
| Technical Parameter of AQ-QD General Type Double Girder Overhead Crane | |||||||
| Capacity | t | 5 | 10 | 16 | 20 | 32 | 50 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~16 | 6~16 | 6~16 | 6~16 | 6~18 | 6~16 |
| Lifting speed | m/min | 11.5 | 8.5 | 7.9 | 7.2 | 6 | 6 |
| Trolley speed | m/min | 37.2 | 37.4 | 40.1 | 40 | 37 | 31.3 |
| Crane speed | m/min | 70.6 | 70.6 | 74.3 | 75.1 | 64.9 | 58.5 |
| Work duty | A3~A7 | A3~A7 | A3~A7 | A3~A7 | A3~A7 | A3~A7 | |
| Track type | P38 | P38 P43 | P43 | P43 | QU70 | QU80 | |
| Capacity | t | 75 | 100 | 125 | 160 | 200 | 250 |
| Span | S(m) | 10.5~31.5 | 13~31 | 13~31 | 13~31 | 13~31 | 13~31 |
| Lifting height | m | 6~20 | 6~20 | 6~20 | 6~22 | 6~20 | 6~20 |
| Lifting speed | m/min | 3.9 | 3.1 | 3.9 | 3.5 | 2.6 | 2.2 |
| Trolley speed | m/min | 31.3 | 33.6 | 33 | 40 | 32 | 32 |
| Crane speed | m/min | 61 | 61.8 | 62.3 | 68 | 48 | 50 |
| Work duty | A3~A7 | A3~A7 | A3~A7 | A3~A7 | A3~A7 | A3~A7 | |
| Track type | QU100 | QU100 | QU100 | QU120 | QU120 | QU120 |
| Capacity | t | 300 | 350 | 400 | 450 |
| Span | S(m) | 13~31 | 13~31 | 13~31 | 13~31 |
| Lifting height | m | 6~24 | 6~24 | 6~24 | 6~24 |
| Lifting speed | m/min | 2.4 | 2.2 | 2.6 | 2.1 |
| Trolley speed | m/min | 28 | 28 | 31 | 27 |
| Crane speed | m/min | 42 | 42 | 45 | 42 |
| Work duty | A3~A7 | A3~A7 | A3~A7 | A3~A7 | |
| Track type | QU120 | QU120 | QU120 | QU120 |
| Technical Parameter of AQ-LH Model Electric Hoist Double Girder Bridge Crane | |||||
| Capacity | t | 5 | 10 | 16 | 20 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~30 | 9~30 | 9~30 | 9~30 |
| Lifting speed | m/min | 8（0.8/8） | 7（0.7/7） | 3.5（0.35/3.5） | 3.3（0.33/3.3） |
| Trolley speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) |
| Crane speed | m/min | 20(43) | 20(43) | 20(43) | 20(43) |
| Work duty | A3~A4 | A3~A4 | A3~A4 | A3~A4 | |
| Track type | P30 | P30 P38 | P38 | P38 P43 | |
| Capacity | t | 25 | 32 | 40 | 50 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 9~24 | 9~24 | 9~20 | 9~20 |
| Lifting speed | m/min | 3（0.3/3） | 3（0.3/3） | 2.3（0.23/2.3） | 1.8（0.18/1.8） |
| Trolley speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) |
| Crane speed | m/min | 20(43) | 20(43) | 20(43) | 20(43) |
| Work duty | A3~A4 | A3~A4 | A3~A4 | A3~A4 | |
| Track type | P43 | P43 | P43 QU70 | P43 QU70 |
| Technical Parameter of AQ-NLH European Standard Electric Hoist Overhead Crane | |||||
| Capacity | t | 5 | 10 | 16 | 20 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~18 | 6~18 | 6~18 | 6~18 |
| Lifting speed | m/min | 0.8/5 | 0.8/5 | 0.66/4 | 0.53/3.4 |
| Trolley speed | m/min | 2~20 | 2~20 | 2~20 | 2~20 |
| Crane speed | m/min | 3~30 | 3~30 | 3~30 | 3~30 |
| Work duty | A5 | A5 | A5 | A5 | |
| Track type | P30 | P30 P38 | P38 | P38 P43 | |
| Capacity | t | 32 | 50 | 63 | 80 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~18 | 6~18 | 6~18 | 6~18 |
| Lifting speed | m/min | 0.6/2.6 | 0.4~2.4 | 0.4~2.4 | 0.4~2.4 |
| Trolley speed | m/min | 2~20 | 2~20 | 2~20 | 2~20 |
| Crane speed | m/min | 3~30 | 3~30 | 3~30 | 3~30 |
| Work duty | A5 | A5 | A5 | A5 | |
| Track type | P43 | P43 QU70 | QU70 | QU80 |
Applications of Bridge Cranes in Our Customer Projects
Machinery Manufacturing: Handling Heavy Components in Uzbekistan
We supplied two double girder overhead traveling cranes to a major machinery manufacturing facility in Uzbekistan. These cranes are used to lift various components throughout the manufacturing process, enhancing operational efficiency and handling capabilities.
- Load Capacity: 10 tons
- Span: 33 meters
- Lifting Height: 9 meters
- Work Duty: A5
Metal Fabrication: Handling Steel Coils in Nigeria
Our company recently completed the installation and commissioning of two double girder bridge cranes at a metal fabrication plant in Nigeria. These cranes are designed specifically for handling steel coils and other metal materials, providing reliable performance for heavy-duty lifting and material handling tasks.
- Load Capacity: 25 tons and 16 tons
- Span: 17.5 meters
- Lifting Height: 8 meters
- Work Duty: A5
Precast Concrete Production: Lifting Precast Concrete Components in Uzbekistan
We provided both a single girder and a double girder bridge overhead travelling crane to a concrete production facility in Uzbekistan. These cranes are used for lifting precast concrete components, facilitating efficient production and handling.
- Load Capacity: 10 tons (single girder), 20 tons (double girder)
- Span: 12 meters
- Lifting Height: 9 meters
- Work Duty: A3
Mining: Lifting Crushing Equipment for Repair in Chile
We equipped a mining service company in Chile with a double beam bridge girder crane for lifting and repairing crushing equipment. Additionally, we provided a steel structure shed to support the crane and expand the work area. This upgrade significantly improved work efficiency and reduced manual labor.
- Load Capacity: 32 tons
- Span: 14 meters
- Lifting Height: 10 meters
- Work Duty: A5
These are just a few examples of our customers’ project applications. We are dedicated to providing bridge crane solutions for a wide range of industries, including shipbuilding and maintenance, automotive, aerospace, paper and pulp, mold manufacturing, logistics and warehousing, waste management and recycling, and more. Our goal is to enhance lifting efficiency and safety across various sectors. Contact us today to find the ideal overhead bridge crane solution for your needs!
Reasons to Choose Aicrane Overhead Cranes
When selecting an overhead crane manufacturer or supplier, you may want to seek a company that not only offers high-quality equipment but also provides comprehensive support and service. Here’s why Aicrane stands out as a top choice among overhead crane companies:
Custom Solutions
As leading overhead bridge crane manufacturers, we specialize in providing tailored solutions for electric overhead traveling cranes. Our team of professional engineers and project consultants works closely with clients to thoroughly discuss their lifting needs and budget. Based on this comprehensive evaluation, we offer the most suitable solutions, ensuring that each piece of equipment meets the specific requirements of the project.
Guaranteed Production Quality
We are committed to delivering high-quality overhead crane equipment. Utilizing advanced production technology and adhering to strict quality control standards throughout the manufacturing process, Aicrane ensures that every crane meets high industry standards and performs reliably under demanding conditions. As a reputable bridge crane supplier, our production quality is unmatched.
One-on-One Order Follow-Up
Our dedicated customer service representatives provide personalized support by tracking the progress of each order. We offer regular updates on equipment production, coordinate shipping schedules, and manage installation preparations to ensure that the equipment is produced and delivered to the customer’s site on time. This level of detail sets us apart as a top choice among bridge crane manufacturers.
Comprehensive Installation And Training
Aicrane provides a range of installation and training services tailored to customer requirements:
- Online Guidance: We offer remote support to assist with installation and setup.
- On-Site Assistance: For more complex overhead crane installation, our experts can provide hands-on support at the customer’s location.
- Operator Training: We provide comprehensive training for operators, covering equipment operation, maintenance, and troubleshooting to ensure safe and efficient use.
Ongoing After-Sales Service and Support
Our after-sales team conducts regular follow-ups to monitor the performance and maintenance of the equipment, ensuring continuous support and customer satisfaction. As a trusted overhead crane factory, we stand by our commitment to providing exceptional after-sales service, making us a preferred choice among bridge crane companies.
In a word, selecting Aicrane as your overhead crane supplier means working with a company that focuses on quality, customization, and customer support. Whether you need light duty overhead cranes for small workshops or heavy duty overhead cranes for large manufacturing facilities, Aicrane provides the right solutions to make sure your lifting operations are effective, safe, and successful.
Key Components of Overhead Crane Systems
Understanding the key components of overhead bridge crane systems is crucial for selecting the right crane, ensuring proper maintenance, and achieving optimal performance. Take a look at the fundamental components of overhead crane systems and their functions.
Bridge
The bridge is the primary structure of an overhead crane that spans the width of the area to be serviced. It consists of two main parts:
- Bridge Girder: This is the main horizontal beam that carries the load. It can be a single or double girder, depending on the overhead crane capacity and application. Double girder bridges are typically used for heavier loads and provide greater lifting heights.
- End Trucks: Attached to the ends of the bridge girder, end trucks are equipped with wheels that run on the crane rails. They allow the bridge to move horizontally along the length of the rails.
Hoist and Trolley
The hoist is the component responsible for lifting and lowering the load. It is mounted on the bridge girder, and can be a single hoist or double hoist overhead crane. The hoist typically includes:
- Lifting Mechanism: This consists of a motor, gearbox, and drum or chain that raises and lowers the load.
- Load Chain or Wire Rope: This is the part of the hoist that directly supports the load. Chains are used in chain hoists, while wire ropes are used in wire rope hoists.
- Brake System: The brake system ensures the hoist can hold the load securely in place. It includes a motor brake and a load brake, which work together to prevent accidental movement.
The trolley moves along the bridge girder and supports the hoist. It is powered by an electric motor, allowing for precise control and smooth movement along the bridge girder.
Controls
The control system manages the crane’s operations and includes:
- Control Panel: This is the central hub where operators can control the crane’s movements. It can be a pendant control station attached to the crane or a wireless remote control.
- Drive System: The drive system includes the motors and gearboxes that power the crane’s movements, including the bridge, trolley, and hoist.
Crane Rails
Crane rails are the tracks on which the crane moves. They are installed on the building’s structure and must be aligned precisely to ensure smooth operation. There are different types of crane rails, including:
- Standard Rails: Commonly used for light to medium-duty applications.
- Wide Rails: Used for heavy duty bridge cranes, providing greater support and stability.
End Stops and Limit Switches
End stops and limit switches are safety features that prevent the crane from moving beyond its operational limits:
- End Stops: These are physical barriers placed at the ends of the crane rails to prevent the crane from running off the rails.
- Limit Switches: These are electrical devices that automatically stop the crane when it reaches its maximum or minimum travel limits.
Electrical and Safety Systems
Electrical systems power the crane and include various safety features:
- Power Supply: Overhead cranes are typically powered by an electric supply, with wiring that needs to be properly insulated and maintained.
- Safety Sensors: These include overload sensors, emergency stop buttons, and safety interlocks to ensure safe operation.
Structural Supports
The structural supports of industrial overhead cranes include:
- Columns: These vertical supports hold up the crane rails and bridge. They must be robust and securely anchored to the building’s foundation.
- Supports and Braces: Additional structural elements provide stability and prevent the crane from swaying or tipping.
FAQs for Overhead Cranes
- Routine Inspections: Daily or weekly checks for visible issues and general condition.
- Periodic Inspections: More thorough inspections by qualified personnel, usually performed quarterly or semi-annually.
- Annual Inspections: Comprehensive inspections that comply with regulatory requirements and ensure the crane meets all safety standards.
- Routine Maintenance: Monthly or quarterly maintenance tasks, such as lubrication and minor adjustments.
- Scheduled Servicing: Semi-annual or annual servicing by a qualified technician, including detailed inspections and necessary repairs.
- Emergency Servicing: As needed, when issues or breakdowns occur.
- Pre-Operation Check: Inspect the crane for any issues before use, including checking load limits, controls, and safety devices.
- Controls Familiarization: Understand the crane’s control system, whether manual, remote, or cab-operated.
- Load Handling: Position the crane correctly, attach the load securely, and operate smoothly to lift, move, and lower the load as required.
- Safety Procedures: Follow safety protocols, such as avoiding overloading, maintaining clear communication with others, and ensuring the work area is clear.
- Post-Operation: Conduct a final check and ensure the crane is properly parked and secured.
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- Structure: The crane consists of a bridge (single or double girder) supported by runway beams, allowing it to move along the length of the workspace.
- Hoist Mechanism: The hoist, mounted on the bridge, lifts and lowers the load using a motor-driven drum and wire rope or chain.
- Trolley System: The hoist is mounted on a trolley that moves horizontally along the bridge.
- Controls: The crane is operated using controls that direct the hoist and trolley movements, allowing precise positioning of the load.
View this page https://aicraneliftingsolution.com/overhead-cranes/how-does-an-overhead-crane-work/ to learn more about how an overhead crane work.
- Pendant Control: Operation from a control panel attached to the crane.
- Remote Control: Wireless operation using a handheld device for flexibility and convenience.
- Cab Control: Operation from an enclosed cabin mounted on the crane, providing a clear view and precise control.
- Crane Type and Size: Large overhead cranes with higher capacities require more power.
- Operational Needs: Features such as frequency conversion and high-speed lifting may affect power consumption.
- Local Electrical Standards: Compliance with local electrical codes and regulations is necessary.