Selling Safe and Efficient Cranes: Overhead Cranes

2023-02-03 17:20:11

Understanding Overhead Bridge Cranes

Yuantai can provide various tonnage overhead crane lifting equipment, 10 ton bridge crane, 50 ton overhead crane, 100 ton overhead bridge crane, and so on. If the lifting capacity is below 20 tons and the working class is not too high, we recommend choosing a 1-20 ton single girder overhead crane. If the lifting capacity exceeds 20 tons, or you need a higher working duty crane, we recommend choosing a 20-550 ton double girder overhead crane. You can choose the appropriate crane according to your own needs if you know the specific parameters such as lifting capacity, span, and working duty required by your working conditions. At the same time, our professional engineers can also provide you with the most suitable overhead crane solution according to your requirements. You can keep in touch with us by email or other means. Contact us for free design drawings and pricing of overhead cranes.

Overhead Bridge Crane for Sale

Overhead bridge cranes come in various types, each designed to suit specific industrial applications, load capacities, and operational environments. The primary types of overhead bridge cranes include:

1. Single Girder Overhead Bridge Crane:

Single Girder Top Running Crane:

This type of crane is designed with a single girder that runs along the top of the runway beams. It's a cost-effective solution for light to moderate lifting capacities.
Suitable for smaller workshops, maintenance areas, and assembly lines.

Single Girder Under Running Crane:

Here, the single girder runs underneath the runway beams, and the hoist is attached to the bottom flange of the girder.
Ideal for situations with limited headroom where the installation of top-running cranes might not be feasible.

2. Double Girder Overhead Bridge Crane:

Double Girder Top Running Crane:

These cranes feature two girders running atop the runway beams, providing increased stability and higher lifting capacities compared to single girder cranes.
Ideal for heavy-duty lifting in applications such as steel mills, automotive, and foundries.

Double Girder Under Running Crane:

Similar to the single girder under running crane, this type involves two girders running beneath the runway beams.
Offers advantages in situations where headroom limitations make top-running cranes impractical.

3. Specialized Overhead Bridge Cranes:

Free Standing Workstation Bridge Crane:

These cranes are designed for specific workstations and are free-standing, not requiring support from the building's structure.
Commonly used in assembly lines and production areas to move materials within a limited space.

Stacker Crane:

Often used in automated warehouses, stacker cranes are designed to handle pallets or containers vertically, accessing and retrieving goods from racks.
Especially suitable for high-density storage facilities and inventory management.

Magnet Crane:

Equipped with magnets to handle ferrous materials, these cranes are commonly used in scrapyards, recycling centers, and metalworking facilities.
Designed specifically for lifting and moving materials that are magnetically attractive.

4. Overhead Bridge Cranes by Power Source:

Electric Overhead Bridge Crane:

Powered by electricity, these cranes offer smooth and precise lifting capabilities, commonly found in manufacturing and heavy industrial settings.
They are highly efficient and allow for controlled movement and positioning of heavy loads.

Pneumatic Overhead Bridge Crane:

Operated using compressed air, these cranes are suitable for environments where electricity may pose safety risks, such as in potentially explosive or hazardous areas.

5. Overhead Bridge Crane Configurations:

Top Running vs. Under Running:

The distinction between top-running and under-running cranes refers to the position of the bridge/girder relative to the runway beams. Top-running cranes have the bridge running on top of the beams, while under-running cranes have the bridge beneath the beams.

Top Running Overhead Bridge Crane

Under Running Overhead Bridge Crane

Each type of overhead bridge crane offers distinct advantages based on load capacity, operational requirements, and environmental conditions, allowing businesses to select the most suitable crane for their specific needs.

Bridge Crane Components | Overhead Crane Parts

Bridge: The bridge is the overhead structure that spans the width of the area and supports the hoist. It typically moves along the runway beams.
Runway Beams: These are the horizontal beams on which the bridge travels. They are securely attached to the building structure and provide support for the entire crane system.
Hoist: The hoist is the lifting component of the crane. It consists of a motor, drum or lift wheel, wire rope or chain, and a hook or lifting attachment. It's used to raise and lower heavy loads.
Trolley: The trolley is a mechanism that moves horizontally along the bridge, allowing the hoist to travel across the width of the area. It is often equipped with wheels that run along the bridge beam.
End Trucks: These are the wheeled components on which the bridge is mounted. They move along the runway beams and provide support and stability for the bridge.
Electrical Controls: These include control panels, limit switches, push-button pendants, and other electrical components that allow an operator to control the crane's movements, such as lifting, lowering, and traversing.
Brakes and Limit Switches: Safety features like brakes and limit switches are installed to ensure the crane stops or operates within specified limits, preventing accidents or overloading.
Bumpers and Buffers: These are safety features often installed at the ends of runway beams or trolleys to absorb impact and minimize damage in case of accidental collision.
Load Block: The load block is the attachment at the end of the hoist line that holds the load securely, often in the form of a hook or other lifting attachments.
Wire Rope or Chain: This is the lifting medium that extends from the hoist to the load block, used for lifting heavy loads.

These components work together to enable the crane to lift, move, and position heavy objects within a specific area. Regular maintenance and inspection of these parts are crucial to ensure the crane operates safely and efficiently.

Bridge Crane Safety

Operator Training and Certification:

Qualified Personnel: Only trained and certified operators should handle bridge cranes. Training programs should cover crane operations, load handling, inspection procedures, and emergency protocols.
Certification Requirements: Operators should possess proper certification based on regulatory standards to ensure they are equipped to manage crane operations safely and efficiently.

Pre-Operational Inspection:

Routine Check-ups: Before each shift, operators must conduct thorough inspections of the crane and its components. This includes checking for any visible damage, loose parts, proper functioning of controls, and adequate lubrication.
Inspection Records: Maintain a record of inspections and repairs, ensuring any issues are addressed promptly.

Load Capacity Adherence:

Load Limit Compliance: Crane operators must adhere to the specified load capacity of the crane. Overloading can lead to accidents and structural damage.
Load Securement: Ensure that the load is properly secured and balanced before lifting to prevent any incidents during transportation.

Safe Operating Practices:

Clear Communication: Effective communication among crane operators, signalers, and ground personnel is crucial. Use standardized hand signals or radio communication to ensure clear instructions.
Avoiding Obstacles: Ensure the path is clear before moving the load. Watch for overhead obstacles or any potential obstructions.
Slow and Steady Movements: Operate the crane smoothly, avoiding sudden jerks or abrupt movements that may lead to swinging loads or structural stress.

Emergency Procedures:

Emergency Stop Mechanisms: Cranes should be equipped with emergency stop buttons or switches to halt operations in case of any imminent danger.
Evacuation Protocols: Have clear evacuation plans in place for personnel in case of emergencies or accidents.

Maintenance and Repairs:

Scheduled Maintenance: Follow a regular maintenance schedule to ensure that the crane components are in optimal working condition.
Prompt Repairs: Address any identified issues immediately to prevent operational risks and maintain safety standards.