In the vast and dynamic landscape of maritime engineering, crane ships stand as giants, orchestrating the construction, installation, and maintenance of some of the world’s most complex offshore projects. China, a global leader in this field, boasts an impressive fleet of these behemoths, each equipped with cutting-edge technology and unparalleled lifting capacities.

This in-depth guide delves into the world of China’s crane ships, exploring their history, technological advancements, and the pivotal roles they play in offshore oil and gas operations, wind turbine installations, and large-scale infrastructure projects. You will discover the remarkable capabilities of vessels like the Lanjing, with its 7,500 tonnes lifting capacity, and the Huaxia Kunpeng 01, designed for the precise installation of offshore wind turbines.

Readers can expect to gain insights into the operational specifics of these vessels, including their advanced crane systems, state-of-the-art navigation and safety features, and the strategic importance they hold in China’s maritime and energy sectors. Whether you

Sanhang Xiang’an – Chinese crane ship boasts intelligent …

Vessel Review: Sanhang Xiang’an – A Chinese Crane Ship with Advanced Capabilities

Overview

The Sanhang Xiang’an is a state-of-the-art crane ship built in 2024, showcasing China’s advancements in marine engineering and offshore construction. Here is a detailed guide to its features and capabilities.

Vessel Specifications

• Length: 186 meters[4][5]
• Width: 48 meters[4][5]
• Depth: 13.5 meters[4][5]
• Gross Tonnage: 37,704 tons[1]
• Capacity: Designed to accommodate up to 100 people[5]

Classification and Registration

• Classification Society: CCS (China Classification Society)[5]
• Registration: Registered in China[2]

Design and Construction

• The Sanhang Xiang’an is a self-propelled Dynamic Positioning (DP) crane ship, highlighting its ability to maintain precise positioning even in harsh marine conditions.
• The vessel underwent a successful trial voyage, demonstrating its operational readiness and capabilities[5].

Crane and Lifting Capabilities

• The ship is equipped with a large marine engineering crane, which is a key feature for its offshore construction and marine engineering tasks.
• The crane boasts variable amplitude boom capabilities, enhancing its versatility and precision in lifting operations[4].

Intelligent Systems

• The Sanhang Xiang’an is integrated with advanced intelligent systems, which include sophisticated control and monitoring technologies.
• These systems enable efficient and safe operations, particularly in complex offshore environments.

Operational Capabilities

• Offshore Construction: The vessel is designed for various offshore construction tasks, including the installation and maintenance of offshore structures.
• Dynamic Positioning: Its DP system allows the ship to maintain a fixed position and heading, which is crucial for precise operations in the open sea.
• Marine Engineering: The ship’s crane and other equipment are tailored for marine engineering projects, such as lifting heavy loads and performing complex marine tasks.

Safety and Crew Accommodations

• The vessel is designed with safety and crew comfort in mind, featuring accommodations for up to 100 people.
• Advanced safety features and emergency response systems are integrated to ensure the well-being of the crew during operations.

Conclusion

The Sanhang Xiang’an represents a significant milestone in China’s maritime engineering capabilities, combining advanced technology, robust construction, and high operational efficiency. Its intelligent systems, large lifting capacities, and self-propelled DP capabilities make it a versatile and reliable asset for offshore construction and marine engineering projects.

USCG Instructs Owners of Chinese STS Cranes to Take …

U.S. Coast Guard Directive on Chinese STS Cranes: A Comprehensive Guide

Introduction

The U.S. Coast Guard has issued a new directive, MARSEC Directive 105-5, addressing significant cybersecurity concerns related to ship-to-shore (STS) cranes manufactured in China. This guide provides an in-depth look at the directive, the reasons behind it, and the implications for U.S. port infrastructure.

Background and Context

• Dominance of Chinese STS Cranes: Chinese-made STS cranes, particularly those from Shanghai Zhenhua Heavy Industries (ZMPC), dominate the global market, accounting for nearly 80% of the STS cranes at U.S. ports[1][3][5].
• Previous Directives and Actions: The new directive follows a previous MARSEC Directive issued in February 2024, which was part of a broader initiative by President Joe Biden to protect U.S. port infrastructure from cyber threats linked to China[1][3][5].

Cybersecurity Concerns

• Remote Access Vulnerabilities: These cranes are designed to be controlled, serviced, and programmed from remote locations, which makes them susceptible to exploitation. This vulnerability, combined with intelligence on China’s interest in disrupting U.S. critical infrastructure, poses a significant threat to the maritime components of the national transportation system[1][3][5].
• Suspicious Device Installations: Recent reports have highlighted the discovery of suspicious modems installed on some of these cranes, fueling fears of potential spying and interference with port operations[1][4].

MARSEC Directive 105-5

• Security-Sensitive Information: The directive contains security-sensitive information and is not available to the general public. Owners and operators of Chinese-made STS cranes must contact their local Coast Guard Captain of the Port or District Commander to obtain a copy[1][3][4].
• Additional Cyber Risk Management Requirements: This directive outlines additional cyber risk management actions beyond those specified in the previous MARSEC Directive 105-4. It emphasizes the need for immediate action to prevent potential security incidents in the national transportation system[1][3][5].

Implications and Actions

• Coordination with Other Agencies: The Coast Guard has consulted with various agencies, including the Department of State, Department of Defense, Department of Transportation, and the Cybersecurity and Infrastructure Security Agency (CISA), to establish the revised guidelines[3][4].
• Tariffs and Economic Impact: In response to these security concerns, the U.S. Trade Representative has imposed a 25% tariff on Chinese-made STS cranes for orders placed after May 2024, although exceptions have been made for orders placed prior to this date and delivered by 2026. The American Ports Association has criticized this move, citing increased costs without clear alternatives[1][4].
• Initiatives to Reshore Crane Manufacturing: President Biden has initiated efforts to reshore crane manufacturing capability in the United States, allocating billions of dollars in infrastructure funding for port upgrades to replace foreign-manufactured cranes with American-made ones[1][5].

Recommendations and Compliance

• Immediate Action Required: Port and terminal operators, crane owners, and other involved parties must take immediate action to comply with the new directive. This includes disabling modems and communications capabilities on the cranes and implementing additional security measures to prevent unauthorized access[1][4][5].
• Training and Resources: The Department of Homeland Security and CISA have launched a new cybersecurity training platform to help port operators improve their security measures. However, it has been noted that only a fraction of private operators have utilized these services, leaving many ports at risk[4].

Future Steps and Strategies

• Enhanced Cybersecurity Measures: The Coast Guard and other agencies are working to bolster cybersecurity at U.S. harbors through initiatives like the Control Environment Laboratory Resource (CELR) platform. This platform aims to enhance the Coast Guard’s capabilities to secure maritime infrastructure and serve as a training and research hub[3].
• Three-Tiered MARSEC System: The MARSEC system employs a three-tiered framework for identifying and responding to security risks, ensuring quick action and enhanced communication between stakeholders[5].

This directive and the associated actions underscore the U.S. commitment to protecting its critical infrastructure and maintaining maritime security in the face of evolving cyber threats.

China’s newest large crane vessel deploys on first project

China’s Newest Large Crane Vessel: An In-Depth Guide

Introduction

China has recently introduced several advanced large crane vessels, each designed to tackle complex offshore construction and installation projects. This guide focuses on one of the latest and most sophisticated of these vessels, the Huaxia Kunpeng 01, highlighting its features, capabilities, and applications.

Vessel Overview

• Builder and Owner: The Huaxia Kunpeng 01 was built by Shanghai Zhenhua Heavy Industries and is owned by Huaxia Financial Leasing.
• Dimensions: The vessel measures 195 meters in length, 49.8 meters in width, and has a maximum draught of 12 meters and a depth of 16 meters.
• Accommodation: It can accommodate up to 100 personnel, making it suitable for extended offshore operations.

Design and Construction

• Compliance: The vessel is designed and built in compliance with China Classification Society rules, allowing for unlimited navigation areas.
• Materials: It features all-steel construction, ensuring durability and strength.
• Bow Design: The vessel has a streamlined bow and rounded corners and keels, enhancing its stability and maneuverability.
• Anchoring System: Equipped with DP2 and eight-point anchoring systems, enabling installation works in various weather conditions and water depths of up to 100 meters.

Propulsion and Environmental Compliance

• Engines: Powered by engines that comply with IMO Tier III NOx emission standards, ensuring environmentally friendly navigation over long distances.
• Navigation Performance: The vessel does not require tugs and barges for maneuvering and positioning, thanks to its improved navigation performance.

Crane and Lifting Capabilities

• Main Crane: Features a main double-hook, heavy-duty deck crane mounted at the stern with a 360-degree rotation capability and a maximum lifting capacity of 5,000 tonnes.
• Lifting Height: Boasts one of the tallest lifting heights among Chinese-built crane vessels, making it ideal for large-capacity offshore wind turbines and other heavy structures.
• Deck Load: The vessel can transport up to 8,000 tonnes of assorted cargo, allowing for the simultaneous transport of multiple offshore wind turbine sets.

Operational Capabilities

• Offshore Wind Turbine Installation: Primarily built for the transport and installation of large-capacity offshore wind turbines.
• Other Applications: Suitable for construction of cross-strait steel bridges, installation of offshore oil and gas platform modules, and salvage of large sunken vessels.
• Foundation Construction: Capable of carrying out various forms of foundation construction for large offshore wind turbines with a single capacity of 15 MW and above.

Safety and Support Features

• Forward Flight Deck: Includes a forward flight deck for efficient crew transfers and resupply via helicopter, equipped with a Leon International meteorological data system to ensure safe helicopter operations.
• Lifeboat: Onboard space is available for a lifeboat for use in evacuations.

Market and Operational Prospects

• Market Application: The vessel has a broad market application prospect, contributing significantly to offshore clean energy development, ocean power strategies, and deep-sea operations.
• Future Projects: Construction of a sister vessel has begun, indicating a continued commitment to advancing offshore construction capabilities.

Conclusion

The Huaxia Kunpeng 01 represents a significant advancement in offshore construction technology, offering unparalleled lifting capacity, advanced safety features, and versatility in various offshore projects. Its capabilities make it a leader in the field of offshore wind power and large-scale marine construction.

Joint Investigation into CCP-Backed Company Supplying …

Joint Investigation into CCP-Backed Company Supplying Cranes to U.S. Ports: Key Findings and Implications

Introduction

A joint investigation by several House committees has uncovered significant concerns regarding Chinese-built cargo cranes deployed at various U.S. ports. The investigation, focused on Shanghai Zhenhua Heavy Industries (ZPMC), a state-owned Chinese manufacturer, reveals potential national security risks associated with these cranes.

Discovery of Unauthorized Communications Equipment

• Cellular Modems: The investigation found multiple cellular modems installed on ZPMC ship-to-shore (STS) crane components at U.S. seaports. These modems were not included in the equipment contracts between U.S. ports and ZPMC.
• Server Room Modem: An additional cellular modem was discovered in a server room at one of the U.S. ports, which houses the firewall and networking equipment for the STS cranes.
• Unexplained Installations: Port officials were unable to determine why these modems were installed, as they were not requested by the ports.

Security Concerns

• Potential for Spying: The presence of these unauthorized modems has raised concerns that the cranes could be used for surveillance or intelligence gathering by the Chinese government.
• FBI Findings: In 2021, the Federal Bureau of Investigation (FBI) discovered intelligence gathering equipment on a vessel delivering ZPMC cranes to the Port of Baltimore, further exacerbating these concerns.
• Proximity to PLA Facilities: Many of the ZPMC cranes were built in an area adjacent to a shipyard where the People’s Liberation Army Navy’s most advanced warships are constructed, including aircraft carriers and destroyers.

Involvement of Other Companies

• ABB: The investigation also involves the Swiss company ABB, as many operational components manufactured by ABB are shipped to China, stored for several months, and then installed on U.S.-bound port equipment by ZPMC engineers.

Scope and Impact

• Dominance in U.S. Ports: ZPMC accounts for nearly 80 percent of the STS cranes in use at U.S. maritime ports, highlighting the extensive reach and potential vulnerability.
• Operational Functions: While some of the modems were used for legitimate operational functions such as remote monitoring and maintenance tracking, others were installed without any clear purpose or request from the ports.

Political and Administrative Response

• Congressional Inquiry: The House committees have requested detailed information from ZPMC regarding its engagement with the Chinese Communist Party (CCP) and any instructions or requests received from the CCP.
• Biden Administration Concerns: The findings have fueled concerns within the Biden administration about the potential security risks posed by these Chinese-made cranes.

Conclusion

The joint investigation has revealed significant security concerns related to Chinese-built cargo cranes at U.S. ports. The unauthorized installation of cellular modems and the close ties between ZPMC and the CCP have raised alarms about potential surveillance and intelligence gathering activities. These findings underscore the need for stringent oversight and security measures to protect U.S. national security interests.

Huge Crane-Laden Ship Wrecks in Taiwan Just Weeks …

Incident Overview of the Crane-Laden Ship Wreck in Taiwan

Introduction

A significant maritime incident occurred in Taiwan involving a China-registered heavy-lift vessel, which had a history of recent accidents. Here is a detailed guide to the incident.

Background of the Vessel

• The vessel in question is a China-registered heavy-lift ship.
• It had been involved in a previous accident just two weeks prior to the wreck.

Previous Accident

• The vessel was previously involved in an accident at Taiwan’s Keelung Port.
• During this incident, the vessel caused damage, although specific details of the damage are not specified.

The Wreck Incident

Location and Timing

• The vessel ran aground along the coast of Taiwan.
• This incident occurred just weeks after the previous accident at Keelung Port.

Circumstances of the Wreck

• The vessel, laden with heavy cranes, encountered difficulties that led to it running aground.
• The exact causes of the wreck, such as weather conditions, navigational errors, or mechanical failures, are not detailed in the available information.

Impact and Aftermath

Immediate Consequences

• The wreck resulted in significant disruption to maritime operations in the area.
• There were concerns about the safety of the crew and the potential environmental impact.

Response and Recovery Efforts

• Authorities and salvage teams were likely involved in assessing the situation and planning recovery operations.
• Details on the specific actions taken, such as towing the vessel to a safe area or removing the cranes, are not provided.

Safety and Regulatory Implications

Investigation

• An investigation into the incident would be conducted to determine the root causes of the wreck.
• Regulatory bodies and maritime safety authorities would scrutinize the vessel’s operations, safety protocols, and the actions of the crew.

Safety Protocols Review

• The incident highlights the need for a thorough review of safety protocols and practices on board heavy-lift vessels.
• Gaps in safety measures, if identified, would be addressed to prevent similar incidents in the future.

Environmental Concerns

Potential Environmental Impact

• The wreck of a heavy-lift vessel, especially one carrying cranes, poses risks to the marine environment.
• Authorities would monitor the situation to ensure there are no oil spills or other environmental hazards.

Conclusion

The wreck of the China-registered heavy-lift vessel in Taiwan underscores the importance of stringent safety measures and rigorous maintenance in the maritime industry. It also highlights the need for prompt and effective response mechanisms in the event of such incidents to mitigate their impact.

U.S. Moves Forward with Sweeping Tariffs on China …

U.S. Tariffs on Chinese-Made Port Cranes: An In-Depth Guide

Introduction

The U.S. has implemented sweeping tariff increases on a wide range of Chinese goods, including ship-to-shore (STS) cranes used in American ports. This move is part of the Biden Administration’s efforts to counter China’s unfair trade practices and address national security concerns.

Tariff Details

Scope of Tariffs

The tariffs cover a broad spectrum of Chinese goods, including:
– Semiconductors
– Steel and aluminum products
– Electric vehicles and their batteries
– Permanent magnets
– Medical products such as gloves, facemasks, and syringes[1][4].

Tariff Rates and Implementation

• The tariff rate on Chinese-made STS cranes has been increased to 25% effective in 2024.
• Tariffs on other goods, such as steel and aluminum, will increase to 25% in 2024, while semiconductors will see a tariff rate increase to 50% by 2025[1][4].

Exclusions

• Contracts for STS cranes executed prior to May 14, 2024, and cranes that enter the U.S. prior to May 14, 2026, are excluded from the tariffs. This exclusion aims to mitigate the immediate financial impact on U.S. ports that had already placed orders for these cranes[1][3].

Impact on U.S. Ports

Financial Burden

• The American Association of Port Authorities (AAPA) estimated that the tariffs would result in an additional $131 million in unexpected costs for U.S. ports, given the number of cranes already on order from Chinese manufacturers[1][3][5].

Operational Concerns

• Port officials argue that the tariffs could raise costs for port operators or delay critical port infrastructure investments. The AAPA emphasized that there are currently no U.S. manufacturers of STS cranes, making the tariffs ineffective in promoting domestic manufacturing without causing significant harm to U.S. ports[1][2][3].

Security Concerns

Cybersecurity Threats

• Accusations against Chinese-manufactured cranes, particularly those from Shanghai Zhenhua Heavy Industries (ZPMC), include the presence of cellular modems that could enable remote control and espionage. Reports from the U.S. House of Representatives subcommittee highlighted these threats, prompting the Biden administration to order a review and grant the U.S. Coast Guard new authorities for cybersecurity and port operations[1][3].

Mitigation Measures

• The U.S. Coast Guard has been advised to disassemble any connections of ZPMC cranes to cellular modems or other methods of connection, absent an existing contractual obligation. The Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency is also set to issue guidance on installing operational technology monitoring software for cranes[3].

Efforts to Reshore Manufacturing

Domestic Manufacturing Initiatives

• The Biden administration is working to reshore a portion of the STS crane manufacturing to the U.S. An agreement with PACECO Corp., a U.S.-based subsidiary of Japan’s Mitsui E&S Co., aims to relaunch U.S. manufacturing capabilities for cranes after an absence of over 30 years. Additionally, Konecranes, a Finnish-based port equipment manufacturer, is establishing a supplier network including U.S. steel to build STS cranes in the United States[1].

Long-Term Solutions

• The AAPA and port officials are urging the Biden administration and Congress to consider long-term alternatives, including legislation to build up a domestic crane manufacturing sector and introducing financial incentives to encourage U.S. ports to buy cranes from non-adversarial countries[2][3].

Industry Reaction

Port Authorities’ Response

• Port authorities, terminal operators, and industry groups have pushed back against the tariff on STS cranes. The AAPA has sent letters to the U.S. Trade Representative urging reconsideration of the tariff, citing potential negative outcomes such as harm to port efficiency, strained supply chains, increased consumer prices, and a weaker U.S. economy[2][3].

Ongoing Negotiations

• Port officials continue to work with stakeholders to find exemptions or modifications to the tariffs. For example, Port Houston is seeking to exempt the eight cranes it ordered in July from the tariffs, which could otherwise add $28.5 million in costs[2].

Conclusion

The implementation of tariffs on Chinese-made STS cranes is a complex issue that balances economic and national security concerns. While the tariffs aim to counter China’s unfair trade practices and address cybersecurity threats, they also pose significant financial and operational challenges for U.S. ports. Ongoing efforts to reshore manufacturing and find long-term solutions are crucial in mitigating these impacts and ensuring the competitiveness and security of U.S. port operations.

Chinese-made port cranes in US included ‘backdoor …

Overview of the Security Risks Posed by Chinese-Made Port Cranes in the US

Introduction

A recent congressional examination conducted by the House Select Committee on China and the House Homeland Security Committee has uncovered significant security vulnerabilities associated with Chinese-made port cranes in US ports. Here is a detailed guide outlining the key findings and implications of this investigation.

Key Findings of the Congressional Investigation

Presence of Technological Backdoors

• The investigation revealed that Chinese-made ship-to-shore cranes, manufactured by Shanghai Zhenhua Heavy Industries Company Limited (ZPMC), contain technological backdoors. These backdoors include cellular modems that were not requested by US ports or included in the contracts[1][3][5].

Purpose and Impact of the Modems

• These cellular modems were intended for the collection of usage data on certain equipment but constitute a significant backdoor security vulnerability. They could potentially allow access to the machines, bypass firewalls, and disrupt port operations[1][3][5].

Unauthorized Installations

• The modems were installed without the knowledge of port authorities and beyond the scope of contracts with ZPMC. Technicians at the ports believed these modems were for diagnostic purposes, but they created an obscure method for information collection[1][3][4].

Security and National Security Implications

Cybersecurity Vulnerabilities

• The presence of these modems and the potential for remote access by ZPMC or other Chinese entities pose significant cybersecurity risks. This could allow the Chinese government to exploit and manipulate US maritime equipment and technology[1][3][5].

National Security Threats

• Given China’s national-security laws that mandate companies to cooperate with state intelligence agencies, the access granted to ZPMC could be extended to other PRC government entities. This poses a substantial risk to US national security, particularly in the context of potential conflicts over Taiwan[2][3][5].

Dominance of ZPMC in the Global Market

Market Share and Influence

• ZPMC dominates the global market share of ship-to-shore (STS) port cranes, accounting for roughly 80% of the STS cranes operational in the US. This dominance adds to the PRC’s broader maritime infrastructure control and creates cybersecurity and national security vulnerabilities for the US and its allies[3][5].

Contractual Agreements

• US ports have entered into multimillion-dollar contracts with ZPMC that do not prohibit or limit unauthorized modifications or access to equipment and technology. These contracts allow critical internal components to be sent to ZPMC for installation without oversight from the original manufacturers[1][3][5].

Recommendations and Future Actions

Severing Connections and Enhancing Security

• The committees recommend that US ports sever the connections between ZPMC cranes and cellular modems and install operational technology monitoring software. The Department of Homeland Security (DHS) and the US Coast Guard are advised to prioritize closing security gaps, particularly at strategic seaports like Guam[3].

Domestic Production and Diversification

• To mitigate these risks, the US is working to start domestic production of ship-to-shore cranes in collaboration with Japanese heavy industrial companies. This initiative aims to ensure a reliable supply of critical hardware without reliance on Chinese manufacturers[1].

Executive and Legislative Actions

• The Biden-Harris administration has announced an Executive Order to strengthen maritime cybersecurity, fortify the supply chain, and strengthen the US industrial base. A $20 billion investment into US port infrastructure over the next five years is also planned to address these security concerns[3].

Conclusion

The investigation highlights the critical need for enhanced cybersecurity measures and reduced reliance on Chinese-manufactured equipment in US ports. The presence of backdoor modems in Chinese-made port cranes poses significant risks to both the integrity of port operations and national security. Addressing these vulnerabilities is crucial to ensuring the security and reliability of US maritime infrastructure.

171m Floating Crane Barge 2023 China 3000mt SWL

171m Floating Crane Barge: An In-Depth Guide

Overview

The 171m Floating Crane Barge is a recently built, non-propelled crane barge designed for heavy-lift operations, particularly in marine construction and other heavy-duty applications. Here is a detailed outline of its key features and capabilities.

General Characteristics

Dimensions

• Length: 171 meters
• Beam: 43 meters
• Depth: 14.2 meters

Lifting Capacity

• The barge has a significant lifting capacity of 3000 metric tons (MT) Safe Working Load (SWL), making it suitable for handling large and heavy loads.

Design and Construction

Build Details

• Year Built: 2023
• Location: China
• This modern construction ensures the barge is equipped with the latest technology and design principles for optimal performance.

Propulsion

• Non-Propelled: The barge is not self-propelled and requires external assistance, such as tugs, for movement.

Operational Capabilities

Lifting Operations

• With a lifting capacity of 3000 MT SWL, this barge can handle a wide range of heavy loads, including large modules, heavy equipment, and construction materials.
• The crane system is designed for precision and reliability, making it ideal for complex lifting tasks.

Working Conditions

• The barge is suited for operations in various marine environments, including harbors, coastal areas, and offshore sites, though it may require sheltered waters for optimal stability.

Safety and Stability

Stability Features

• While specific stability details are not provided, it is crucial for any floating crane barge to have robust stability measures to ensure safe operations. This typically includes a low center of gravity and a wide beam to prevent excessive rolling.

Crew and Accommodation

Crew Requirements

• Although the specific crew requirements are not detailed, a barge of this size and capability would typically require a skilled crew including crane operators, engineers, and support staff.

Accommodation

• The barge likely includes accommodations for the crew, such as living quarters, galley, sanitary facilities, and control rooms, though specific details are not provided.

Maintenance and Support

Maintenance Needs

• Regular maintenance is essential for the crane and other critical systems to ensure continuous operation. This includes routine checks on the crane, propulsion systems (if applicable), and other mechanical components.

Support Services

• Given its size and complexity, the barge may require periodic dry-docking for major maintenance and repairs. Support services such as spare parts supply and technical assistance are also crucial.

Applications

Marine Construction

• The 171m Floating Crane Barge is well-suited for marine construction projects, including the installation of heavy modules, jetties, monopiles, and other large marine structures.

Heavy Lifting

• Its high lifting capacity makes it ideal for heavy lifting tasks in various industries, such as oil and gas, wind energy, and general heavy engineering projects.

Offshore Operations

• The barge can be used in offshore environments for tasks like the installation of offshore platforms, wind turbines, and other heavy marine equipment.

In summary, the 171m Floating Crane Barge is a powerful and versatile asset for any organization involved in heavy-lift marine operations. Its significant lifting capacity, modern design, and suitability for various marine environments make it an invaluable tool for complex construction and engineering projects.

10 Massive Crane Ships Operating at the Sea

Guide to Massive Crane Ships Operating at Sea

Introduction

Crane ships are powerful ocean-going vessels equipped with massive cranes designed to handle heavy loads, particularly in offshore environments. These vessels are crucial for various maritime operations, including construction, salvaging, and the installation of offshore facilities.

Types of Crane Ships

Regular Crane Vessels

Regular crane vessels operate on a standard monohull design, similar to conventional cargo ships. These vessels offer a high degree of flexibility as their cranes are able to rotate, enhancing their versatility during lifting operations. Typically, these cranes have a lifting capacity of around 2,500 tons.

Semi-Submersible Crane Vessels

Semi-submersible crane vessels are designed to offer greater stability and are often used for heavy lift operations. These vessels can submerge their hulls to a certain depth, allowing them to lift and place heavy loads with precision. Examples include the SSCV Sleipnir and the Saipem 7000, which boast lifting capacities of up to 10,000 tons per crane.

Sheerleg Crane Vessels

Sheerleg crane vessels are characterized by their fixed-position cranes, which do not rotate. These vessels are often used for specific heavy-lift tasks and are known for their high lifting capacities. An example is the Hyundai-10000, which has a maximum lifting capacity of 10,000 tons.

Notable Massive Crane Ships

SSCV Sleipnir

• Lifting Capacity: Each of its two revolving cranes has a capacity of 10,000 tons.
• Notable Features: First crane vessel powered by LNG, eight thrusters for high speed, and a record lift of 15,300 tons in the Leviathan Gas field.
• Operator: Heerema Marine Contractors.

SSCV Thialf

• Lifting Capacity: Approximately 14,200 tons.
• Notable Features: Two cranes, used for various offshore construction jobs.
• Operator: Heerema Marine Contractors.

Saipem 7000

• Lifting Capacity: Two revolving cranes with a capacity of 7,000 tons each.
• Notable Features: Semi-submersible design, advanced ballasting technology, and accommodation for over 700 crew members.
• Operator: Saipem.

Zhen Hua 30

• Lifting Capacity: 12,000 tons with a revolving capacity of 7,000 tons.
• Notable Features: Length of 297.6 meters and beam of 58 meters, built 27 years ago.
• Flag: Chinese.

Hyundai-10000

• Lifting Capacity: 10,000 tons.
• Notable Features: Largest shear-leg floating crane in the world, built by Hyundai Heavy Industries in 2015.
• Dimensions: 182 meters in length, 70 meters in width, and 11 meters in depth.

Asian Hercules III

• Lifting Capacity: 5,000 tons.
• Notable Features: Self-propelled sheerleg crane vessel, dimensions of 106 meters in length and 52 meters in width.
• Operators: Boskalis/Asian Lift.

Operations and Capabilities

Construction and Installation

Crane ships are essential for the construction and installation of offshore platforms, wind farms, and other marine infrastructure. They can lift and place heavy modules and structures with precision, even in deepwater environments.

Salvage and Decommissioning

These vessels are also used for salvaging sunken vessels and decommissioning offshore structures. Their heavy-lift capabilities make them ideal for such complex and heavy-duty operations.

Offshore Wind Farms

Crane ships play a critical role in the installation of offshore wind farms, including the execution of foundations, assembly of jackets, towers, and wind turbines.

General Lifting Operations

They are versatile and can perform various lifting operations in rivers, sheltered waters, and open sea. This includes cargo handling, naval construction, and general construction tasks.

Technological and Design Features

Stability and Balance

Crane ships often feature advanced stability systems, including active heave compensation (AHC) and active balance stabilizers. These systems ensure the stability of the vessel and the crane during lifting operations, even in rough seas.

Moonpool and Subsea Lifting

Many crane ships have a moonpool, a central opening that allows for subsea lifts with less dynamic effort. This feature is particularly useful for operations involving deepwater lifting.

High-Traction Winches

These vessels are equipped with high-traction winches capable of working with high-modulus fiber cables, further enhancing their lifting capabilities.

Conclusion

Crane ships are indispensable assets in the maritime industry, particularly for offshore operations. Their advanced designs, high lifting capacities, and specialized features make them suitable for a wide range of tasks, from construction and installation to salvage and decommissioning. Understanding the different types and capabilities of these vessels is crucial for optimizing maritime operations and ensuring the safe and efficient handling of heavy loads at sea.

Crane vessel sets record

Since the specific website https://shipsmonthly.com/news/crane-vessel-sets-record/ is not accessible in the provided search results, the following guide will be based on the most relevant and detailed information available from the other sources regarding the record-breaking crane vessel, particularly the SSCV Sleipnir.

Guide to the SSCV Sleipnir and Its Record-Breaking Lifts

Introduction

The SSCV Sleipnir, operated by Heerema Marine Contractors, is currently the world’s largest semi-submersible crane vessel. It has been involved in several record-breaking offshore lifts since its entry into service in 2019.

Vessel Specifications

General Characteristics

• Length: 220 meters
• Width: 102 meters
• Accommodation: Up to 400 people[2][3]
• Power: 12 engines, each rated at 8 MW, capable of running on low sulphur marine gas oil (MGO) or liquified natural gas (LNG)[2][3]

Crane Capabilities

• Main Cranes: Two Huisman revolving turret cranes, each with a 10,000 tonne capacity. The total lifting capacity is 20,000 tonnes when operating in tandem.
• Lifting Radius: Each crane can lift 10,000 tonnes at a radius of 48 meters, 7,000 tonnes at 62 meters, and 4,000 tonnes at 82 meters. The maximum radius is 102 meters[2][3]
• Auxiliary Hoist: Capable of lifting 2,500 tonnes to a radius of 60 meters[2][3]
• Maximum Lifting Height: 175 meters above the sea[2][3]

Record-Breaking Lifts

Tyra TEG Module Lift

In October 2022, the Sleipnir set a world record for the heaviest crane lift ever undertaken at sea by lifting the TotalEnergies’ Tyra TEG module, which weighed 17,000 tonnes. This module, part of the Tyra II gas field redevelopment project, is equivalent in weight to two Eiffel Towers. The installation was completed ahead of schedule, thanks to good weather conditions[1][3].

Brent Alpha Jacket Lift

In July 2020, Sleipnir set another record by lifting the Shell’s Brent Alpha jacket, weighing 10,100 metric tons, from the UK North Sea and delivering it to Norway for recycling[2].

Leviathan Natural Gas Project

Sleipnir also set a world record by lifting a 15,300 ton module for the Leviathan Natural Gas project in Israel, marking the largest energy project in the country[2].

Operational Capabilities

Versatility

The Sleipnir can operate in both shallow and ultra-deep waters, making it ideal for installing or removing jackets, topsides, and other offshore equipment. Its dual-fuel engines allow for sustainable operations almost anywhere[2].

Efficiency

The vessel’s ability to perform massive lifts reduces the amount of offshore work needed, increasing efficiency in offshore operations. For example, the Tyra TEG module installation was completed in just six hours after years of planning[1].

Engineering and Design

Cranes

The cranes on the Sleipnir are mounted on the world’s largest bearings, with a diameter of 30 meters. These cranes have overcome significant engineering challenges to achieve their record-breaking lifts[2].

Propulsion and Power

The vessel is powered by 12 engines, each capable of producing 8 MW of power. This setup allows the Sleipnir to stay on station for a month or cross the Atlantic, enhancing its operational flexibility[2].

Conclusion

The SSCV Sleipnir is a technological marvel in the field of offshore heavy lifting, setting multiple world records and demonstrating its capability to handle enormous structures at sea. Its advanced design, powerful cranes, and sustainable operation make it a key asset in the offshore energy and construction sectors.

Frequently Asked Questions (FAQs)

What is the dominance of Chinese crane manufacturers in the global and U.S. markets?

Chinese crane manufacturers, particularly Shanghai Zhenhua Heavy Industries (ZPMC), hold a significant dominance in both the global and U.S. markets for ship-to-shore (STS) cranes. ZPMC produces nearly 80% of the STS cranes used in U.S. ports and dominates about 70% of the global market share. This dominance is largely due to China’s access to cheap labor and heavily subsidized steel, which allows ZPMC to sell its cranes at competitive prices. Additionally, ZPMC benefits from economies of scale and the vertical integration of its production chain, further reducing costs and increasing efficiency.

How do Chinese-made cranes pose a potential security risk to U.S. ports?

Chinese-made cranes, particularly those manufactured by ZPMC, pose several potential security risks to U.S. ports. These cranes can be controlled, serviced, and programmed from remote locations, which makes them vulnerable to exploitation. The presence of communications equipment such as cellular modems, found in some of these cranes, raises concerns that they could be used for surveillance or infrastructure sabotage. There are also worries that China could capture information about materials being shipped in or out of the country, potentially compromising U.S. military operations and national security.

What role do subsidies play in the competitiveness of Chinese crane manufacturers?

Subsidies play a crucial role in the competitiveness of Chinese crane manufacturers. China’s steel industry, which is a key raw material for crane production, is heavily subsidized by the government. These subsidies include cheap loans, tax breaks, land grants, and other forms of support, which lower the production costs and market prices of Chinese steel. This subsidized steel makes it cheaper and more attractive for crane manufacturers like ZPMC to use, enabling them to produce cranes at lower costs and sell them at competitive prices globally.

How are Chinese-made cranes integrated into the U.S. maritime sector, and what are the implications?

Chinese-made cranes are deeply integrated into the U.S. maritime sector, particularly in the loading and unloading of cargo containers from ships to docks. These cranes are essential for facilitating commercial activity, international trade, and military logistical operations. However, their widespread use raises significant concerns. In the event of a conflict or if the functionality of these cranes is compromised, it could disrupt commercial activity and have far-reaching implications for the U.S. economy and national security. The reliance on these cranes also underscores the vulnerability of U.S. critical infrastructure to potential exploitation by China.

What steps are being taken to address the security concerns associated with Chinese-made cranes at U.S. ports?

To address the security concerns associated with Chinese-made cranes at U.S. ports, several steps are being taken. The U.S. government has announced new cyber-risk management requirements for owners and operators of Chinese-made container cranes. These requirements include contacting the local Coast Guard Captain of the Port to obtain copies of Maritime Security Directive 105-4, which outlines specific cyber risk management actions. Additionally, there are efforts to replace existing Chinese-made cranes with those produced by U.S.-based or allied companies, such as PACEO Corp., a U.S. subsidiary of Japanese Mitsui E&S. This move aims to reduce China’s ability to spy on America’s domestic supply chains and enhance national security.