Overhead Crane Types, Feature and Application - Overhead Crane Manufacturer

Overhead crane, also known as bridge crane, come in various types designed for specific lifting and material handling applications. The choice of an eot cranes type depends on factors such as the weight of the loads to be lifted, the environment, available space, and specific job requirements. Here are some common overhead crane types:

Type 1. Single Girder Overhead Crane:

• Single girder crane have one girder (horizontal beam) supported by end trucks or wheels on either side.
• They are cost-effective and suitable for lighter loads.
• Typically used in workshops, warehouses, and assembly lines.

Type 2. Double Girder Overhead Crane:

• Double girder crane have two girders running parallel, providing increased stability and lifting capacity.
• Ideal for heavy-duty applications and lifting heavier loads.
• Commonly used in steel mills, foundries, and other industrial settings.

Type 3. Monorail Crane:

• Monorail crane consist of a single rail track along which a hoist or trolley can move.
• Ideal for transporting loads along a fixed path within a facility.
• Commonly used in manufacturing and assembly processes.

Type 4. Top-Running Overhead Crane:

• Top-running overhead crane travel on elevated runways, typically attached to the ceiling structure.
• Suitable for maximizing vertical lifting space and covering a large area.
• Used in various industrial applications.

Type 5. Underhung Overhead Crane:

• Underhung crane run on the bottom flange of runway beams, allowing for more precise positioning and less interference with ceiling structures.
• Commonly used in workstations and areas with limited headroom.

Type 6. Workstation Bridge Crane:

• Workstation bridge crane are designed for a specific workstation or production area.
• They offer efficient load handling within a limited space and are often manually operated.

Type 7. Low Headroom Single Girder Overhead Crane:

• These crane are designed for facilities with limited vertical space.
• They are used in workshops, warehouses, and other areas with low headroom constraints.

Type 8. Ladle Overhead Crane:

• Ladle crane are used in steel mills and foundries to handle and pour molten metal from ladles.
• They have specialized features for the safe and precise handling of molten materials.

Type 9. Explosion-Proof Bridge Crane:

• Explosion-proof crane are used in hazardous environments where there is a risk of flammable gases or materials.
• They are designed to prevent the ignition of explosive atmospheres.

Type 10. Electromagnetic Overhead Crane:

• Electromagnetic crane are equipped with magnets or electromagnets for handling loads made of magnetic materials.
• Commonly used in scrapyards, metal recycling, and steel production.

Type 11. Overhead Crane with Hook:

• A standard overhead crane with a hook attachment for lifting various types of loads.
• Versatile and used in a wide range of industries and applications.

Type 12. Grab Bucket Overhead Crane:

• Grab bucket crane are equipped with a bucket or grab attachment for handling loose bulk materials, such as coal, sand, or grain.
• Common in material handling in ports and industrial settings.

Type 13. Insulation Overhead Crane:

• Insulation crane are designed for use in environments where electrical insulation is required to prevent electrical hazards.
• Often used in clean room facilities and sensitive manufacturing processes.

Type 14. Double Trolley Overhead Crane:

• Double trolley crane have two trolleys on the same bridge, allowing for the simultaneous handling of multiple loads.
• Used in applications where efficient handling of multiple loads is essential.

The choice of the overhead crane types depends on your specific material handling needs, the available space, and the weight of the loads you need to move. It's essential to consider these factors and consult with a crane specialist or manufacturer to select the right overhead crane types for your application.

Compare specification and price of different overhead crane types:

Overhead Crane Types	Lifting Capacity(t)	Span(m)	Voltage(V)	Price(USD)
Single Girder Overhead Crane	1~32t	7.5~28.5m	220-480/3/50	$10,000 to $50,000
Double Girder Overhead Crane	5~550t	10.5~35.5m	220-480/3/50	$30,000 to $150,000
Monorail Crane	1~32t	7.5~28.5m	220-480/3/50	$5,000 to $20,000
Top-Running Overhead Crane	1~350t	10.5~31.5m	220-480/3/50	$20,000 to $100,000
Underhung Overhead Crane	0.5~10t	3~15m	220-480/3/50	$15,000 to $80,000
Workstation Bridge Crane	0.05~3t	1~9	220-480/3/50	$3,000 to $15,000
Low Headroom Single Girder Overhead Crane	1~32t	7.5~22.5m	220-480/3/50	$15,000 to $60,000
Ladle Overhead Crane	5~74t	10.5~31.5m	220-480/3/50	$50,000 to $200,000
Explosion-Proof Bridge Crane	1~75t	7.5~31.5m	220-480/3/50	$30,000 to $150,000
Electromagnetic Overhead Crane	5~32t	10.5~31.5m	220-480/3/50	$20,000 to $100,000
Overhead Crane with Hook	5~550t	10.5~35.5m	220-480/3/50	$10,000 to $50,000
Grab Bucket Overhead Crane	5~25t	10.5~34.5m	220-480/3/50	$30,000 to $150,000
Insulation Overhead Crane	5~50t	10.5~31.5m	220-480/3/50	$20,000 to $100,000
Double Trolley Overhead Crane	(2.5+2.5)~(200+200)t	10.5~35.5m	220-480/3/50	$40,000 to $180,000

Please note that these are rough estimates and can vary widely based on your specific requirements, location, and market conditions. To get an accurate overhead crane price, it's best to contact eot cranes manufacturer - Dongqi Crane and request a quote tailored to your needs. 

Comparing Overhead Crane Types: Single Girder vs. Double Girder

When comparing overhead crane types, such as single girder and double girder crane, several factors should be considered to determine which one is more suitable for a specific application. These factors include load capacity, lifting height, cost, maintenance, and the overall requirements of the intended operation. Here's a comparison of single girder and double girder eot cranes:

1. Load Capacity:

• Single Girder Crane: Single girder crane are typically designed for lighter loads, typically ranging from 1 to 20 tons. They are suitable for small to medium-sized operations.
• Double Girder Crane: Double girder crane are built to handle heavier loads, often ranging from 5 to 200 tons. They are a better choice for heavy-duty applications.

2. Lifting Height:

• Single Girder Crane: These crane are usually used in applications where the lifting height is not excessively high, such as in warehouses and manufacturing facilities.
• Double Girder Crane: Double girder crane provide more lifting height capacity and are suitable for operations that require lifting materials to significant heights, like in steel mills or shipyards.

3. Span and Runway Length:

• Single Girder Crane: Single girder crane typically have a shorter span and require less runway length, making them a good choice for facilities with limited space.
• Double Girder Crane: Double girder crane require a longer span and more runway length. They are better suited for larger facilities with ample space.

4. Cost:

• Single Girder Crane: Single girder crane are generally more cost-effective in terms of initial purchase price and installation costs. They are a budget-friendly choice for smaller operations.
• Double Girder Crane: Double girder crane are more expensive due to their heavier construction and larger load capacities. However, they can be a cost-effective choice for heavy-duty applications in the long run.

5. Maintenance:

• Single Girder Crane: Single girder crane are usually easier to maintain because they have fewer components. Maintenance costs tend to be lower compared to double girder crane.
• Double Girder Crane: Double girder crane may require more maintenance due to their more complex structure and additional components. However, they are built to withstand heavier usage.

6. Application:

• Single Girder Crane: Suitable for light to moderate use in industries like warehousing, automotive, and light manufacturing.
• Double Girder Crane: Ideal for heavy-duty applications, including steel manufacturing, shipbuilding, and construction.

7. Safety:

• Safety considerations are critical for both overhead crane types. Regular inspections, operator training, and adherence to safety protocols are essential for safe operation.

Overhead Crane Operation and Maintenance

Overhead Crane Operation:

• Certified Operators: Ensure that crane operators are properly trained and certified to operate the specific overhead crane types in use. Training should cover safe operation, load handling, and emergency procedures.
• Pre-Shift Inspection: Before using the crane, conduct a pre-shift inspection to check for any visible damage, malfunctions, or safety hazards. Pay attention to hoist chains, wires, brakes, hooks, and control systems.
• Clear Communication: Establish clear communication between the operator and ground personnel, including hand signals or radios, to ensure safe load handling and movement.
• Load Capacity: Never exceed the crane's rated load capacity. Consult load charts or capacity plates to determine the maximum allowable load.
• Load Attachment: Secure the load properly, use appropriate slings or hooks, and ensure the load is evenly distributed to prevent imbalance.
• Safe Speed: Operate the crane at safe and controlled speeds. Avoid sudden starts or stops, and keep the load close to the ground when traveling.
• Overhead Clearance: Be mindful of the overhead clearance, and avoid hitting the crane's hook or load on obstructions or structures.
• Avoid Swing: Minimize load swing by moving it slowly and smoothly. Use taglines if necessary to control load movement.
• Emergency Stop: Know how to use the emergency stop button in case of an emergency or malfunction. Ensure the button is easily accessible.
• No Riders: Never allow unauthorized personnel to ride on the crane or hoisted loads.
• Weather Conditions: Adjust crane operation in adverse weather conditions, such as high winds or rain, to maintain safe operation.

Overhead Crane Maintenance:

• Regular Inspections: Schedule routine inspections by qualified personnel. Daily, weekly, monthly, and annual inspections are common depending on crane usage.
• Lubrication: Lubricate moving parts as recommended by the manufacturer. Proper lubrication ensures smooth operation and prolongs the crane's life.
• Track and Wheels: Check the crane's track and wheels for wear and proper alignment. Ensure that the wheels are in good condition and move freely.
• Electrical Components: Regularly inspect and maintain electrical components, such as wiring, switches, and control systems. Address any issues promptly.
• Wire Rope or Chain: Inspect the wire rope or chain for signs of wear, corrosion, or damage. Replace any worn or damaged parts immediately.
• Brakes: Ensure that the brakes are functioning correctly to prevent unintended movement.
• Load Testing: Periodically conduct load testing to verify the crane's load capacity and safe operation.
• Documentation: Maintain thorough records of maintenance and inspections, including dates, findings, and actions taken.
• Manufacturer Guidelines: Follow the manufacturer's guidelines for maintenance and keep the operator's manual readily available.
• Emergency Repairs: Address any identified issues or problems promptly and suspend crane operations until necessary repairs are completed.

Safety is paramount when operating eot cranes. Regular training, inspections, and maintenance are essential to prevent accidents and ensure a safe working environment. Consult with crane manufacturers, industry experts, and regulatory bodies for specific guidelines and best practices regarding your specific eot cranes types and application.

Overhead crane security protection system:

An overhead crane security protection system is a set of safety and security measures designed to protect personnel, equipment, and the surrounding environment during the operation of eot cranes. These systems help prevent accidents, minimize risks, and enhance the safe use of eot cranes. Here are some key components and features of an eot cranes security protection system:

• Emergency Stop Systems: Emergency stop buttons or switches are installed at various locations on the crane and in the control room. These allow operators to quickly halt crane movements in case of an emergency.
• Overload Protection: Load cells or load limit devices are used to prevent overloading. If the load exceeds the crane's rated capacity, these devices trigger an alarm or stop the crane operation.
• Anti-Collision Systems: These systems use sensors, lasers, or cameras to detect obstacles or other crane in the vicinity. If a collision risk is detected, the system can stop crane movement or issue a warning.
• Zone Control: eot cranes security systems can include geofencing and zone control features. Operators may be restricted from moving the crane into certain zones, which are defined as dangerous areas.
• Anti-Sway Systems: To reduce load sway during crane movements, anti-sway systems are used. These systems employ mathematical algorithms and feedback control to stabilize the load.
• Safe Speed Monitoring: Safety systems monitor the crane's speed and alert or intervene if the crane exceeds preset speed limits.
• Limit Switches and End Stops: Limit switches are placed at both ends of the crane's travel path to prevent the crane from traveling too far and hitting the end stops.
• Collision Avoidance Alarms: Alarms and warning signals, such as lights and sirens, alert personnel to the crane's movement, especially when the crane is in motion.
• Safety Training: Comprehensive safety training for crane operators and maintenance personnel is a fundamental part of the security protection system. Training ensures that operators are well-versed in safe crane operation and maintenance.
• Regular Inspections and Maintenance: Periodic inspections and maintenance are crucial to ensure that safety systems and crane components are in working order.

It's important to customize the security protection system to meet the specific needs and challenges of your facility and the overhead crane types in use. Consult with crane manufacturers, safety experts, and relevant industry standards to implement the most effective security protection system for your particular application.