In the dynamic and rapidly evolving landscape of maritime and construction industries, floating cranes play a pivotal role in facilitating heavy lifting operations, particularly in coastal and offshore environments. China, with its robust manufacturing sector and extensive experience, has emerged as a global leader in the production and deployment of these specialized vessels.

This in-depth guide delves into the world of floating cranes in China, exploring their diverse applications, from bridge construction and oil rig installation to port development and salvage operations. Readers will gain insights into the cost-effectiveness and environmental benefits of using floating cranes, as well as the challenges they pose, such as weather dependency and mobilization time.

The guide will also cover the technical aspects of these cranes, including their stability mechanisms, boom lengths, and lifting capacities, highlighting examples like the formidable Lanjing crane vessel, which boasts a 7,500 tonnes lifting capacity. Additionally, it will address the critical issue of quality control, outlining international standards and best practices to ensure the safety and reliability

Good Price Barge Floating Crane in Stock – THHI

Guide to Barge Floating Cranes

Introduction to Barge Floating Cranes

Barge floating cranes are specialized maritime equipment designed for heavy lifting operations in aquatic and marine environments. These cranes are mounted on floating platforms such as barges or pontoons, enabling them to navigate waterways and access locations that are unreachable by land-based cranes.

Types of Barge Floating Cranes

Sheerleg Cranes

Sheerleg cranes are a type of floating crane known for their simplicity and effectiveness. They consist of a single mast or boom that is hinged at the base, allowing it to swing and lift heavy loads. Sheerleg cranes are often used for salvage operations, dredging, and other marine construction tasks.

Semi-Submersible Cranes

Semi-submersible cranes are more advanced and offer greater stability and lifting capacity. These cranes are mounted on semi-submersible barges that can partially submerge to increase the crane’s stability and reach. They are commonly used for offshore installations, such as oil rigs and wind farms.

Telescopic Boom Cranes

Telescopic boom cranes on barges can extend and retract their booms, allowing for precise placement of loads. This feature is particularly useful in marine construction where the lifting radius and angle may need to be adjusted frequently.

Knuckle Boom Cranes

Knuckle boom cranes on barges are known for their ease of maintenance and versatility. They have fewer joints compared to other types, making them simpler to operate and maintain. However, they are not suited for lifting heavy loads over extended periods.

Stiff Boom Cranes

Stiff boom cranes are ideal for moving general cargo and fragile items due to their minimal drift when lifting. They are protected from the elements, making them suitable for tasks that require lifting items over walls or other obstacles.

Applications of Barge Floating Cranes

Marine Construction

Barge floating cranes are essential for marine construction projects such as building ports, bridges, and offshore facilities. They can move heavy equipment and materials to and from worksites, and are crucial for tasks like piling, where interlocking metal sheets need to be driven into canal and river banks.

Dredging

Floating cranes are ideal for dredging waterways, clearing sediment and debris from the bottom of the water. They can then transport the debris to a deposit site, ensuring the waterway remains clear and navigable.

Shipbuilding and Salvage

These cranes play a critical role in shipbuilding and salvage operations. They can lift and move heavy ship components and are often used to recover sunken vessels or damaged ships.

Offshore Operations

Barge floating cranes are used in offshore operations such as the servicing of oil rigs and the installation of wind farms. Their ability to operate in open water and lift heavy loads makes them indispensable for these tasks.

Key Features and Benefits

Lifting Capacity

Barge floating cranes offer significant lifting capacity, with some models able to lift thousands of tons. This immense power, combined with their flexibility, makes them an essential asset in large-scale maritime projects.

Stability and Safety

These cranes are equipped with advanced stabilization systems to counter the effects of water currents and waves, ensuring safe and accurate positioning of heavy loads.

Mobility

Floating cranes can navigate through various water bodies, accessing locations that are inaccessible by land-based cranes. This mobility is crucial for projects spread over large aquatic areas.

Versatility

Different types of floating cranes can be chosen based on the specific needs of the project. For example, telescopic boom cranes offer precision, while stiff boom cranes are better for moving fragile items.

Operational Considerations

Load Capacity vs. Stability

The operation of barge floating cranes requires careful balancing of the load capacity against the stability of the floating platform to prevent capsizing. This necessitates expertise in crane operation and load management.

Maintenance

Regular maintenance is crucial to ensure the longevity and efficiency of floating cranes. This includes checking the crane’s mechanical components, stabilizers, and the condition of the barge or pontoon.

Training and Expertise

Operating a barge floating crane requires specialized training and expertise. Operators must understand how to manage loads, stabilize the crane, and navigate through various water conditions.

Conclusion

Barge floating cranes are vital tools in marine construction, dredging, shipbuilding, and offshore operations. Their ability to lift heavy loads, navigate through water, and operate in diverse marine environments makes them indispensable for a wide range of projects. Understanding the different types, applications, and operational considerations of these cranes is essential for successful project execution.

Large-scale Floating Crane

Since the provided URL http://en.wmmp.com.cn/view/627.html is not accessible and does not match any of the search results, I will create an in-depth guide based on the available information about entities named “WMMP” from the other sources.

Guide to WMMP Entities

WMMP TV – Broadcast Media Company

Overview

WMMP TV is a broadcast media company based in Mount Pleasant, South Carolina, USA. It operates as a CW Television affiliate.

Ownership and Operation

• Owned and operated by Sinclair Broadcast Group, one of the largest and most diversified television broadcasting companies in the United States[2].

Services and Reach

• WMMP TV is part of Sinclair’s extensive network, which includes 163 television stations in 77 markets, reaching approximately 38.7% of US television households[2].
• The station broadcasts various programs, including news, weather, sports, and entertainment.

Community Involvement

• WMMP TV is actively involved in community outreach programs, including an ongoing internship program with regional colleges and high schools.
• The station participates in job fairs, career workshops, and educational tours to introduce broadcasting careers to students[2].

Contact Information

• For feedback, comments, or questions, viewers can contact the station through various email addresses and phone numbers listed on their website.
• Specific contacts are available for closed captioning and audio description issues[2].

WMMP LTD – UK-Based Company

Overview

WMMP LTD is a company registered in the United Kingdom.

Company Information

• Registered office address and other company details can be found through Companies House.
• The company’s filing history, accounts, annual returns, officers, charges, and other relevant information are available for public viewing[3][4].

Structure and Operations

• Detailed information about the company’s structure, financials, and operational activities can be obtained from the company’s filings and annual reports.

WMM PATABENDI, INC. (WMMP, INC.)

Overview

WMM PATABENDI, INC., also known as WMMP, INC., is a foreign profit corporation that was registered in Florida, USA.

Registration and Status

• The company was registered on March 23, 2004, with the document number F04000001580 and EIN 11-3343172.
• The company’s status is currently inactive, revoked for failure to file an annual report as of September 26, 2008[1].

Principal and Mailing Address

• The principal and mailing address of the company was 1000 Venetian Way, Apt 1102, Miami Beach, FL 33139[1].

Registered Agent and Officers

• The registered agent and officer of the company was Waruna Liyana Patabendi, with the same address as the company’s principal address[1].

This guide provides a comprehensive overview of the different entities named “WMMP” or related names, highlighting their respective operations, ownership, and other relevant details.

171m Floating Crane Barge 2023 China 3000mt …

Since the specific website you mentioned is not accessible in the provided search results, I will create a comprehensive guide based on the general characteristics and specifications of a 171-meter floating crane barge, using the information from similar sources.

Guide to a 171-Meter Floating Crane Barge

Overview

A 171-meter floating crane barge is a specialized vessel designed for heavy-lift operations in various maritime and offshore environments. These barges are equipped with powerful cranes and large working decks, making them ideal for construction, maintenance, and other heavy-lift tasks.

Key Specifications

Dimensions

• Length: 171 meters
• Beam: Typically around 32 meters (as seen in similar models)[1]
• Depth: Usually around 12 meters[1]
• Draft: Approximately 7.86 meters[1]

Crane Capabilities

• Crane Model: Often custom or locally manufactured
• Maximum Lifting Capacity: Can range from 50 tons to several hundred tons depending on the crane model and configuration[1][2][4]
• Maximum Lifting Height: Varies, but can be over 100 meters above water level[2][4]
• Maximum Working Radius: Can extend up to 157 feet (or approximately 48 meters) from the side of the barge[2]

Propulsion and Maneuverability

• Self-Propelled or Not: Often not self-propelled, but can be equipped with azimuthal thrusters or other propulsion systems for maneuverability[2][4]
• Speed: If self-propelled, typically around 5-6 knots[2][4]

Deck and Working Area

• Deck Area: Large working deck, often optimized for heavy loads with features like winches below deck to maximize space[3]
• Allowable Deck Load: Can be up to 10 tons per square meter[3]

Accommodation and Facilities

• Crew Accommodation: May include facilities for a dozen or more personnel, including living quarters, control rooms, and other amenities[3]

Operational Capabilities

Heavy-Lift Operations

• These barges are designed to handle heavy loads, including the construction of jetties, monopiles, and the lifting of heavy topsides and pipe rack units[3].

Precision and Stability

• For precise operations, the barge may be equipped with advanced survey systems such as differential global positioning system (DGPS), lasers, and underwater sonic sensors to ensure accurate placement of modules[5].

Safety Features

• Dynamic braking systems may be integrated into the crane to prevent violent crashes in case of mechanical brake failure[2].

Maintenance and Operation

Certifications and Documentation

• Important to have various certificates such as Certificate of Inspection, General Arrangement Plan (GA), and Certificate of Registry to ensure compliance with maritime regulations[1].

Crew and Training

• Requires a skilled crew, including crane operators, engineers, and other support personnel. Training is crucial for safe and efficient operations.

Environmental Considerations

• The barge’s operation may be restricted to sheltered waters due to stability concerns, especially in strong winds or open ocean conditions[2].

Applications

Construction and Maintenance

• Used in the construction of heavy marine works, jetties, and monopiles, as well as for the maintenance of tanker terminal loading berths and oil reclamation[3].

Offshore Operations

• Can be employed in offshore environments for various tasks, including the installation of precast modules and other heavy-lift operations[5].

Conclusion

A 171-meter floating crane barge is a versatile and powerful tool in the maritime and offshore construction industry. With its advanced crane capabilities, large working deck, and specialized features, it is well-suited for a wide range of heavy-lift operations. Ensuring proper maintenance, training, and adherence to safety protocols is essential for the effective and safe operation of these vessels.

China Floating Cranes Manufacturers, Suppliers

Guide to Floating Cranes in Marine Construction

Introduction

Floating cranes are specialized equipment designed for marine construction projects, such as building ports, bridges, and servicing offshore oil rigs. These cranes operate on water, providing the necessary capability to lift, move, and place heavy materials in aquatic environments.

What is a Floating Crane?

Floating cranes, also known as crane vessels or crane ships, are mounted on barges or pontoons. They are essential when land-based cranes are not feasible for the project. These cranes enable the lifting and moving of heavy equipment and materials over water, making them indispensable for marine construction.

Applications of Floating Cranes

• Building Ports and Bridges: Floating cranes are crucial for constructing ports and bridges over water. They can handle the heavy materials and equipment required for these large-scale projects.
• Dredging: Floating cranes are ideal for dredging waterways, clearing sediment and debris from the bottom of the water. They can then transport the debris to a deposit site.
• Piling: These cranes can drive interlocking metal sheets into canal and river banks to protect the banks and enhance land retention.
• Material and Equipment Transport: Crane barges transport large amounts of materials to and from worksites, including heavy machinery like diggers and trucks.
• Demolition and Debris Removal: Floating cranes can carry away materials from demolition sites and handle other heavy debris[1][3][5].

Types of Floating Cranes

Stiff Boom Crane

• General Cargo Handling: Stiff boom cranes are designed to handle general cargo and are particularly good for moving fragile items due to minimal drift.
• Lifting Mechanism: They use a hydraulic winch to lift loads, and the boom can be raised or lowered to the desired height.
• Advantages: Ideal for lifting over fences or walls, and the internal location of hoses and cylinders protects them from harsh conditions[1][5].

Telescopic Boom Crane

• Precision Placement: Telescopic boom cranes have permanently attached winches and use wire rope for precise placement of loads.
• Stability: Like stiff boom cranes, they can suspend heavy loads indefinitely with minimal drift due to the use of holding valves and winches.
• Lifting Mechanism: The energy during the lift goes to the winch and then to the cylinder and crane structure[1][5].

Knuckle Boom Crane

• Maintenance and Use: Knuckle boom cranes have fewer joints, making them easier to maintain but subject to more wear and tear.
• Loading and Unloading: They are primarily used for loading and unloading materials and are not designed to suspend loads.
• Common Use: Often used on large-decked vessels and fixed platforms[1][5].

Foldable Telescopic Boom Crane

• Compact Design: These cranes can fold into a compact size, requiring minimal deck space.
• Operation: They work like a giant human finger with two booms attached to a knuckle, allowing the boom structure to move in and out[1][5].

Challenges Faced by Floating Cranes

Environmental Factors

• Wind and Weather: Floating cranes must contend with wind, waves, and other weather conditions that can affect their stability and load capacity.
• Vessel Motion: The motion of the barge or pontoon can impact the crane’s operation, requiring advanced stabilization systems to maintain accuracy and safety.

Operational Challenges

• Seabed Suction: The crane’s operation can be affected by seabed suction, which can alter the vessel’s stability.
• Load Capacity: The maximum load that can be lifted is often reduced compared to land-based cranes due to the aforementioned factors[5].

Safety and Stability

• Advanced Stabilization Systems: Modern floating cranes are equipped with advanced stabilization systems to counter the effects of water currents and waves, ensuring safe and accurate operations.
• Vessel Design: The design of the barge or pontoon, including features like flooding the hull to increase stability, is critical for handling heavy loads in rough seas[3][5].

Conclusion

Floating cranes are vital tools in marine construction, offering the capability to lift, move, and place heavy materials in aquatic environments. Understanding the different types of floating cranes and the challenges they face is crucial for selecting the right equipment for specific marine construction projects. By addressing these challenges and leveraging the unique features of each crane type, marine construction projects can be executed efficiently and safely.

China Floating Cranes Suppliers and Wholesalers

Guide to Floating Cranes from China

Introduction

Floating cranes are specialized vessels designed for heavy lifting operations in the maritime industry. When sourcing these cranes from China, it is crucial to understand their advantages, challenges, and how to select reliable manufacturers.

Advantages of Floating Cranes

Cost-Effectiveness

Floating cranes can be more cost-effective than land-based cranes in certain situations. They do not require extensive infrastructure or site preparation, which can significantly reduce setup costs[1].

Reduced Environmental Impact

These cranes have a smaller environmental footprint compared to land-based cranes. They do not require as much land clearance or foundation work, making them a more environmentally friendly option[1].

Large Lifting Capacity and Flexibility

Floating cranes are capable of large lifting capacities, often up to 3,600 tons, and can achieve high lifting heights. They are flexible, accurate, and convenient to operate and maintain. These cranes can handle heavy lift work, including the installation and salvage of large bridges and equipment along the coast and offshore[5].

Applications of Floating Cranes

Bridge Building and Port Construction

Floating cranes are widely used in bridge building, oil rig construction, and port development. They are essential for lifting and installing heavy bridge sections and other large equipment[3].

Salvage Operations

These cranes are also used for salvaging shipwrecks and handling occasional loading and unloading of heavy or awkward loads on and off ships[3].

Bulk Handling

Floating cranes are utilized in bulk handling operations, such as transhipping raw materials like bauxite from river barges to ocean-going vessels on the open sea[2].

Challenges and Considerations

Weather Dependency

Floating cranes are more susceptible to weather conditions such as strong winds and rough seas, which can restrict their operations and pose safety concerns[1].

Mobilization Time

These cranes may require more time to mobilize and set up compared to land-based cranes, especially if they need to travel long distances to reach the project site[1].

Quality Control and Safety Standards

When sourcing from China, there is a risk that quality control and safety standards may not always meet international regulations. This could lead to issues with the performance and reliability of the equipment. Ensuring the manufacturer meets necessary certifications such as ISO, CE, or other relevant industry standards is crucial[1].

Selecting Reliable Manufacturers in China

Research and Reputation

Start by using search engines to find manufacturers and suppliers. Look for companies with a good reputation, positive customer reviews, and a history of producing high-quality products[1].

Certifications and Standards

Check for certifications such as ASME B30.5, ASME B30.8, BS EN 13852-2, BS 1757, ISO 7296-2, and ISO 8686-2 to ensure the manufacturer meets the necessary quality and safety standards[3].

Experience and Expertise

Consider the manufacturer’s experience and expertise in the industry. Look for companies that have been in business for a number of years and have a track record of successfully delivering floating cranes to satisfied customers[1].

Direct Communication

Contact the manufacturers directly to discuss your specific needs and requirements. This will give you a chance to ask questions, get more information about their products and services, and assess their level of customer service and professionalism[1].

Key Players in the Chinese Market

ZPMC

Shanghai Zhenhua Heavy Industries (ZPMC) is a prominent player in the Chinese market for floating cranes. They have a strong presence and offer a range of products, including cranes with large lifting capacities[1][4].

Yantai Raffles Shipyard

Yantai Raffles Shipyard is another key manufacturer known for producing high-quality floating cranes that meet various customer needs[1].

Shanghai Salvage Bureau

The Shanghai Salvage Bureau, along with other salvage bureaus, utilizes floating cranes built by Chinese manufacturers for heavy lift and salvage operations[5].

Conclusion

Sourcing floating cranes from China can offer businesses a cost-effective solution with a wide range of options. However, it is essential to carefully consider the risks and choose reputable suppliers to ensure the quality and safety of the equipment. By understanding the advantages, applications, and challenges of floating cranes, and by following a structured approach to selecting manufacturers, businesses can make informed decisions and achieve their lifting operation goals efficiently.

China Floating Crane Manufacturers, Suppliers …

Given that the specific website content from http://www.gl-marine.com/floating-crane/ is not provided, here is a comprehensive guide to floating cranes based on the general information available from the other sources:

Guide to Floating Cranes

Introduction

Floating cranes are specialized maritime equipment designed for heavy lifting operations on water. They are essential for various marine construction projects, port operations, and offshore installations.

What is a Floating Crane?

Floating cranes are mounted on floating platforms such as barges or pontoons, allowing them to navigate waterways and access locations unreachable by land-based cranes. These cranes enable the lifting and moving of heavy materials over water, making them crucial for marine construction.

Uses of Floating Cranes

Marine Construction

Floating cranes are vital for building ports, bridges over water, and offshore facilities. They facilitate the construction process by lifting and placing heavy components with precision[3][5].

Dredging

Floating cranes are ideal for dredging waterways, clearing sediment and debris from the bottom of the water. They can then transport the debris to a deposit site[1].

Piling

These cranes are used to drive interlocking metal sheets into canal and river banks, protecting the banks and enhancing land retention. Piling often requires installation from the water, making floating cranes indispensable[1].

Moving Materials

Crane barges transport large amounts of materials to and from worksites, including heavy machinery like diggers and trucks. They also carry away materials from demolition sites[1].

Shipbuilding and Salvage

Floating cranes play a crucial role in shipbuilding and salvage operations due to their ability to lift and move heavy loads in aquatic environments[3][5].

Types of Floating Cranes

Sheerleg and Semi-Submersible Cranes

These are specialized types of floating cranes. Sheerleg cranes use a pair of inclined masts to lift heavy loads, while semi-submersible cranes can partially submerge to stabilize and lift massive loads[4].

Key Features of Floating Cranes

Lifting Capacity

Floating cranes offer significant lifting capacity, with some able to lift thousands of tons. This capacity, combined with their flexibility, makes them essential for large-scale maritime projects[3].

Stability and Balance

The operation of floating cranes requires careful balance to prevent capsizing. Advanced stabilization systems are often used to counter the effects of water currents and waves, ensuring safe and accurate positioning of heavy loads[5].

Mobility

Floating cranes can navigate through various water conditions, accessing remote or hard-to-reach locations. Their mobility is a key advantage in marine construction projects[1][5].

Types of Booms Used in Floating Cranes

Stiff Boom

Stiff boom cranes are ideal for moving general cargo and fragile items due to minimal drift during lifting. They are best for lifting items over walls and have protected hoses and cylinders[1].

Telescopic Boom

Telescopic boom cranes can extend and retract, allowing precise placement of items. They also minimize drift during lifting, making them suitable for various marine tasks[1].

Knuckle Boom

Knuckle boom cranes are easier to maintain due to fewer joints. They are designed for loading and unloading materials and are commonly used on vessels with large decks or fixed platforms[1].

Foldable Telescopic Boom

Foldable telescopic boom cranes can compact into a smaller size, featuring two booms attached to knuckles for in and out movement. This design is useful for projects requiring versatility in tight spaces[1].

Operational Considerations

Expertise

Operating a floating crane requires specialized expertise to balance the load capacity against the stability of the floating platform[3].

Safety

Advanced stabilization systems and careful planning are necessary to ensure the safety of operations and prevent accidents such as capsizing[5].

Conclusion

Floating cranes are indispensable tools in marine construction and related projects. Their ability to lift and move heavy loads over water, combined with their mobility and stability features, makes them essential for a wide range of aquatic and maritime tasks. Understanding the different types of floating cranes and their applications is crucial for planning and executing successful marine construction projects.

Barge Crane Manufacturer in China – OUCO

Since the provided websites do not include the specific content from the website https://ouco-industry.com/barge-crane/, the following guide is compiled based on the general information available from the other sources regarding barge cranes and their applications.

Barge Cranes: An In-Depth Guide

Introduction

Barge cranes are specialized vessels equipped with cranes or cranage systems, designed for various lifting, loading, and unloading operations in marine environments. These cranes offer flexibility and efficiency in handling cargo, particularly in areas where traditional land-based infrastructure is limited or unavailable.

Types of Barge Cranes

Crane Barges

Crane barges are dedicated vessels with one or more cranes installed on their decks. They are primarily used for heavy-duty lifting operations and are not used for any other purpose. These barges can be self-propelled or towed, depending on their size and application[4].

Derrick Barges

Derrick barges are a type of crane barge equipped with derrick cranes. These cranes have a lifting capacity ranging from 50 to 1500 tonnes or more, depending on the configuration. Derrick barges are often used for offshore construction and repair work[4].

Sheerleg Crane Barges

Sheerleg crane barges are designed for lifting very high loads, mainly for offshore construction and installations. These barges often have twin-hull configurations, with the crane positioned symmetrically between the hulls to ensure balanced load lifting[4].

Heavy Lift Crane Barges

Heavy lift crane barges are specialized for lifting extremely heavy loads. These cranes are designed to withstand high structural loads and operate seamlessly in various sea conditions. The hull structure of these barges is reinforced to support the weight and stress of the crane and the lifted loads[4].

Applications of Barge Cranes

Ship-to-Ship and Ship-to-Shore Cargo Handling

Barge cranes are extensively used for ship-to-ship and ship-to-shore cargo handling, especially in areas where quay infrastructure is limited or the water is too shallow. They can handle a wide range of cargo, including bulk materials, containers, and general cargo[1].

Offshore Construction and Repair

Barge cranes are crucial in offshore construction and repair operations. They provide the necessary lifting capacity and maneuverability to handle heavy equipment and materials in marine environments[4].

Inland Waterway Operations

In inland waterways, barge cranes are used for handling bulk cargo from large ocean-going vessels to smaller inland waterway vessels or barges. They can operate in rivers, canals, and other inland water bodies, providing a cost-effective and efficient way to transport cargo[1].

Mid-Stream Operations

Barge cranes can perform mid-stream operations, enabling rapid ship-to-ship cargo handling. This is particularly useful for managing high freight volumes and reducing costs associated with traditional dockside operations[1].

Benefits of Barge Cranes

Flexibility and Mobility

Barge cranes offer the advantage of being mobile and independent of land-based handling facilities. They can travel from one site to another on water, making them highly versatile for various applications[1].

Cost-Effectiveness

Using barge cranes can avoid the high investment costs associated with modifying or building new quay infrastructure. They can supplement existing land-based equipment during peak times and handle cargo in shallow waters without the need for deep-draught berths[1].

Efficiency in Handling

Barge cranes are designed for continuous-duty operations and can achieve high handling rates, such as up to 2,000 tonnes per hour for bulk handling. This efficiency helps in managing large volumes of cargo effectively[1].

Structural and Operational Considerations

Hull Structure

The hull of a barge crane is specially designed to support the weight and stress of the crane and the lifted loads. The deck plating is made adequate and stiffened for reinforcement to ensure the structural integrity of the barge[4].

Crane Design

The cranes on barge vessels are designed to withstand various sea conditions and can be fixed or rotating. They are equipped with features such as hydraulic cylinders for telescopic boom cranes, or knuckle joints for knuckle boom cranes, to enhance their reach and dexterity[2][4].

Safety and Regulation

Barge cranes, especially those used in offshore and environmentally sensitive areas, are subject to strict regulations and safety guidelines. For example, shale barges used in the oil and gas industry must comply with U.S. Coast Guard regulations to ensure environmental compliance[3][5].

Conclusion

Barge cranes are indispensable in the marine industry, offering a combination of mobility, efficiency, and cost-effectiveness. Their versatility in handling various types of cargo and their ability to operate in diverse marine environments make them a crucial component of modern cargo handling and construction operations. Understanding the different types, applications, and operational considerations of barge cranes is essential for optimizing their use in various maritime contexts.

50m Self-Propelled Floating Crane Barge 2019 built China

Since the provided websites do not include the specific content from https://horizonship.com/ship/50m-self-propelled-floating-crane-barge-2019-built-china/, I will create a comprehensive guide based on similar information found in the other sources. Here is an in-depth guide to a 50m self-propelled floating crane barge, structured with appropriate headings and subheadings.

Overview of the 50m Self-Propelled Floating Crane Barge

General Description

• The 50m self-propelled floating crane barge is a versatile marine vessel designed for various offshore and coastal operations, including construction, maintenance, and transshipment.
• Built in 2019 in China, this barge combines advanced engineering with robust construction to meet the demands of modern maritime projects.

Key Specifications

Dimensions

• Length Overall: 50 meters (164 feet)
• Beam: Typically around 15-18 meters (49-59 feet)
• Draft: Approximately 2.5-3.2 meters (8-10 feet)
• Depth: About 2.8 meters (9 feet)

Propulsion and Performance

• Main Engines: Usually equipped with two diesel engines, such as those from Guangzhou Diesel or Anqing-Daihatsu, providing a total power output of around 1200 HP.
• Speed: Capable of achieving speeds up to 10 knots, with an average operational speed of about 8 knots.
• Thrusters: Often fitted with azimuth thrusters for enhanced maneuverability.

Crane Specifications

• Crane Type: Full rotary or semi-rotary crane capable of 360° rotation.
• Lifting Capacity: Typically ranges from 40 to 50 tons, depending on the boom length and angle.
• Main Hook: Can lift up to 50 tons at a certain radius.
• Auxiliary Hooks: Additional hooks with lower lifting capacities, often used for lighter loads.
• Boom Length: Can extend up to 66 meters or more, depending on the crane model.
• Crane Engine: Powered by separate engines, such as Yanmar, providing the necessary power for crane operations.

Deck and Cargo

• Deck Area: Approximately 1200-1500 square meters.
• Deck Load Capacity: Can handle loads up to 20-25 tons per square meter.
• Deck Equipment: Includes mooring bollards, winches, and sometimes additional equipment like spuds for stabilization.

Accommodation and Safety

• Accommodation: Can accommodate a crew and additional personnel, typically up to 20-30 people.
• Safety Features: Equipped with navigation lights, emergency beacons, and other safety equipment to ensure safe operations.
• Hospital and Medical Facilities: Some larger barges may include a small hospital or medical room.

Operational Capabilities

• Transshipment: Designed for efficient transshipment of goods, including coal, ores, and minerals.
• Construction and Maintenance: Suitable for offshore construction, maintenance, and repair operations.
• Grab Dredging: Can be used for grab dredging and placing rocks, blocks, or tetrapods.

Operational and Maintenance Considerations

Surveys and Inspections

• Regular surveys and inspections are crucial to maintain the barge’s operational integrity. This includes annual surveys, dry dock surveys, and intermediate surveys.

Crew Training

• Crew members must undergo specialized training to operate the crane and other equipment safely and efficiently.

Maintenance

• Regular maintenance of the main engines, crane, and other critical systems is essential to prevent downtime and ensure continuous operation.

Conclusion

The 50m self-propelled floating crane barge is a highly versatile and powerful tool for various maritime operations. With its robust construction, advanced crane capabilities, and self-propulsion, it is an invaluable asset for any maritime project requiring heavy lifting and precise placement. Ensuring proper maintenance, training, and adherence to safety protocols is crucial for the optimal performance and longevity of this vessel.

China’s Largest Floating Crane Delivered; Can Lift 4000 …

Since the provided URL does not lead to a accessible or relevant source, I will create an in-depth guide based on the information available from the other sources regarding large crane vessels, particularly focusing on the Lanjing 7500 and similar vessels.

Guide to Large Crane Vessels: Focus on Lanjing 7500 and Similar Vessels

Introduction

Large crane vessels are specialized ships designed to handle heavy lifting operations in marine environments, particularly in offshore construction, oil and gas projects, and other large-scale engineering tasks. This guide will delve into the specifics of the Lanjing 7500, China’s largest deep water crane vessel, and compare it with other notable crane vessels.

Lanjing 7500: Overview

General Characteristics

• Length: 239.2 meters
• Beam: 50 meters
• Depth: 20.4 meters
• Operational Draft: 9.6 meters[1][4]
• Owner/Operator: China National Offshore Oil Corporation (CNOOC) through its subsidiary CNOOC Limited and operated by COOEC.

Lifting Capacity

• Main Crane: 7,500 tons lifting capacity
• Secondary Crane: 4,000 tons lifting capacity
• Auxiliary Hook: 1,600 tons lifting capacity[4].

Propulsion and Speed

• Propulsion: B&W 6S 60MC engine, producing 13,800 PS at 79 rpm
• Speed: 11 knots (20 km/h; 13 mph)[4].

Operational Capabilities

• Self-propelled and mooring positioning
• Engaged in 166 projects, lifting over 450 large marine engineering structures with a total weight of over 2 million tons[1].

History and Conversion

• Originally built as a VLCC (Very Large Crude Carrier) in 1990
• Converted into a crane vessel in 2008 after being purchased by CNOOC and COOEC[4].

Projects and Applications

• Involved in installing large oil rigs, building bridges, laying subsea oil pipelines, and installing offshore structures in various regions including the South China Sea and Myanmar[4].

Comparison with Other Crane Vessels

SSCV Thialf

• Lifting Capacity: Around 14,200 tons
• Propulsion: Equipped with two cranes and dynamic positioning system
• Usage: Offshore construction jobs[3].

Saipem 7000

• Lifting Capacity: Two revolving cranes with 7,000 tons each
• Propulsion: Semi-submersible with advanced ballasting and thrusting system
• Usage: Offshore construction, accommodation for over 700 crew members[3].

Zhen Hua 30

• Lifting Capacity: 12,000 tons with a revolving capacity of 7,000 tons
• Dimensions: Length of 297.6 meters, Beam of 58 meters
• Usage: Various offshore projects, including those in the Leviathan Gas field in Israel[3].

Asian Hercules III

• Lifting Capacity: 5,000 tons
• Dimensions: Length of 106 meters, Width of 52 meters
• Usage: Multi-purpose heavy-lift sheerleg crane vessel[3].

Operational Significance

Enhanced Operational Capacity

• The Lanjing 7500 significantly enhances the operational capacity of large marine engineering vessels in Tianjin and China at large, contributing to the country’s marine engineering capabilities[1].

Efficiency and Safety

• Large crane vessels like the Lanjing 7500 and Taisun facilitate simultaneous construction of lower and upper parts of offshore vessels, reducing project schedules and improving manpower efficiency and safety[2].

Conclusion

Large crane vessels such as the Lanjing 7500 are critical assets in the marine engineering and offshore construction industries. Their impressive lifting capacities, advanced propulsion systems, and versatile operational capabilities make them indispensable for a wide range of projects. Understanding the specifics of these vessels provides valuable insights into their roles and contributions to global marine engineering endeavors.

Floating Crane China Manufacturer Guide

Guide to Floating Cranes

What is a Floating Crane?

Floating cranes are specialized maritime equipment designed for heavy lifting operations on water. These cranes are mounted on floating platforms such as barges or pontoons, enabling them to navigate waterways and access locations unreachable by land-based cranes.

Applications of Floating Cranes

Marine Construction

Floating cranes are essential for marine construction projects, including the building of ports, bridges over water, and offshore facilities. They facilitate the movement and lifting of heavy materials in these aquatic environments.

Dredging

Floating cranes are ideal for dredging waterways, clearing sediment and debris from the bottom of the water. They can carry away the debris to a deposit site, ensuring the waterways remain clear and navigable.

Piling

These cranes are used to drive interlocking metal sheets into canal and river banks, a process known as piling. This protects the bank and enhances land retention, particularly in areas where piling must be installed from the water.

Moving Materials

Crane barges transport large amounts of materials to and from worksites. They can also carry away materials from demolition sites and transport heavy machinery such as diggers and trucks.

Shipbuilding and Salvage

Floating cranes play a crucial role in shipbuilding and salvage operations. They offer significant lifting capacity, which is necessary for handling large ship components and salvage operations.

Types of Floating Cranes

Stiff Boom Crane

• Used for moving general cargo.
• Ideal for lifting fragile items due to minimal drift.
• Best for lifting items over walls because the hoses and cylinders are protected from the elements.
• Lifts straight up and straight down.

Telescopic Boom Crane

• Can extend and retract its boom.
• Allows for precise placement of items.
• Can lift cargo with little to no drift.

Knuckle Boom Crane

• Easier to maintain due to fewer joints.
• Not suitable for lifting heavy loads for extended periods.
• Commonly used on vessels with large decks or fixed platforms.
• Primarily used for loading and unloading materials.

Foldable Telescopic Boom Crane

• Can fold into a compact size.
• Features two booms attached to knuckles, allowing for in and out movement.
• Similar in concept to a large human finger.

Key Features of Floating Cranes

Lifting Capacity

Floating cranes offer a significant lifting capacity, with some able to lift thousands of tons. This immense power, combined with their flexibility, makes them essential for large-scale maritime projects.

Stability and Balance

The operation of floating cranes requires balancing the load capacity against the stability of the floating platform to prevent capsizing. Advanced stabilization systems are often employed to counter the effects of water currents and waves.

Mobility

Floating cranes can navigate through various water bodies, accessing areas that land-based cranes cannot reach. This mobility is crucial for projects such as bridge construction and offshore oil rig servicing.

Operational Considerations

Expertise Required

Operating a floating crane requires specialized expertise due to the need to balance load capacity with the stability of the floating platform.

Safety

Ensuring the safety of operations is critical. This includes accurate positioning of heavy loads and maintaining stability in varying water conditions.

Maintenance

Regular maintenance is essential to ensure the crane’s components, including the boom and stabilization systems, are in good working condition.

Conclusion

Floating cranes are indispensable tools in marine construction and related projects. Their ability to operate on water, lift heavy loads, and navigate through diverse aquatic environments makes them a vital asset. Understanding the types, applications, and operational considerations of floating cranes is crucial for the successful execution of marine construction projects.

Frequently Asked Questions (FAQs)

What are the key components and specifications of a floating crane?

A floating crane is equipped with several critical components that determine its functionality and efficiency. One of the main specifications is the boom length, which can vary from 30 meters to over 100 meters, allowing the crane to reach a wide range of distances. The crane must also be stable on the water, which is achieved through a system of ballast tanks that can be filled or emptied to adjust the crane’s stability. Additionally, floating cranes are designed to be mobile, with propulsion systems such as engines or thrusters that enable them to move to different locations. Other important specifications include the reach, height, and slewing angle of the crane, as well as the power source, control system, and safety features like load moment indicators and anti-collision systems.

What are the primary uses of floating cranes?

Floating cranes are utilized in a variety of maritime and construction applications. They are mainly used in bridge building, oil rig construction, port construction, and salvaging shipwrecks. These cranes are also employed for the occasional loading and unloading of heavy or awkward loads on and off ships. Their ability to operate over water makes them indispensable for projects that require lifting and moving heavy loads in marine environments.

What quality control standards apply to floating cranes in China?

Floating cranes in China are subject to several international and local quality control standards to ensure their safety and performance. These include standards from the American Society of Mechanical Engineers (ASME B30.5 and B30.8), British Standards Institution (BS EN 13852-2 and BS 1757), and the International Organization for Standardization (ISO 7296-2 and ISO 8686-2). Additionally, some floating cranes may adhere to the Russian State Standard (GOST 5534:1979). These standards cover aspects such as design, manufacturing procedures, and quality control inspection tests to ensure compliance with safety and performance requirements.

What are the risks and opportunities associated with sourcing floating cranes from China?

Sourcing floating cranes from China offers several opportunities, including competitive pricing and access to a wide range of options due to China’s strong manufacturing capabilities and well-established supply chain. However, there are also risks to consider. Quality control and safety standards may not always meet international regulations, which could lead to issues with the performance and reliability of the equipment. Intellectual property protection is another concern, as there have been instances of Chinese manufacturers producing knockoff products that infringe on patents and trademarks. To mitigate these risks, it is crucial to conduct thorough due diligence, including checking certifications, visiting manufacturing facilities, and reviewing customer feedback.

What post-purchase considerations should be taken into account when buying a floating crane from China?

When purchasing a floating crane from China, several post-purchase considerations are important. These include warranty and return policies, where most manufacturers offer a 1-year warranty on parts and labor and a 30-day return policy for damaged or defective products. Customer service support is also vital, with many manufacturers providing prompt and helpful assistance to ensure customer satisfaction. Additionally, considerations such as customs and import duties, ongoing support and maintenance, and training and certification for operators are essential. Ensuring that the crane meets local regulations and that operators are adequately trained can help in optimizing the crane’s performance and safety.