Wind Turbine Shaft Market – Global Industry Size, Share, Trends, Opportunity, and Forecast, Segmented By Application (Offshore and Onshore), By Type (Main Shaft and Generator Shaft), By Material Type (Metal and Synthetic Composites), By Region and Competition 2021-2031F

Forecast Period	2027-2031
Market Size (2025)	USD 6.11 Billion
CAGR (2026-2031)	7.31%
Fastest Growing Segment	Offshore
Largest Market	Europe
Market Size (2031)	USD 9.33 Billion

Market Overview

The Global Wind Turbine Shaft Market will grow from USD 6.11 Billion in 2025 to USD 9.33 Billion by 2031 at a 7.31% CAGR. A wind turbine shaft is a critical mechanical component that functions as the primary link for transmitting rotational energy from the rotor hub to the gearbox or generator. The market is primarily supported by the escalating global demand for renewable energy sources and stringent government mandates aimed at achieving carbon neutrality, which necessitate the extensive deployment of wind farms. Additionally, the repowering of aging wind infrastructure with efficient units further propels the requirement for durable shafts.

However, the market faces a significant challenge regarding supply chain volatility and fluctuating raw material costs, which can delay manufacturing and inflate production expenses. According to the Global Wind Energy Council, in 2024, the global wind industry installed a record 117 GW of new capacity. Despite this growth, ensuring a stable supply of specialized steel and precision components remains a hurdle that could impede the seamless expansion of the Global Wind Turbine Shaft Market.

Key Market Drivers

The proliferation of offshore wind farm installations acts as a primary catalyst for the market, necessitating the production of larger, high-grade components capable of withstanding harsh marine environments. Offshore turbines generally operate at higher capacities than their onshore counterparts, requiring main shafts that possess superior tensile strength and corrosion resistance to handle increased torque loads. This shift forces manufacturers to adopt advanced metallurgical processes, thereby increasing the value and volume of shaft orders to support these massive structures. According to the Global Wind Energy Council, June 2024, in the 'Global Offshore Wind Report 2024', the global offshore wind sector installed 10.8 GW of new capacity in 2023, highlighting the specific segment's robust contribution to component demand.

Rising investment in sustainable energy projects further accelerates market expansion by securing the capital required for large-scale infrastructure development and technology upgrades. As public and private sectors commit financial resources to meet decarbonization targets, original equipment manufacturers receive the long-term contracts needed to scale production of critical mechanical drivetrains. This steady capital flow directly mitigates risks associated with raw material procurement for shaft fabrication, ensuring that supply chains can meet the requirements of utility-scale projects. According to the International Energy Agency, June 2024, in the 'World Energy Investment 2024' report, global investment in clean energy technologies was set to reach USD 2 trillion in 2024. Additionally, regional developments reflect this momentum; according to WindEurope, in 2024, the European region installed 18.3 GW of new wind capacity during the prior year, sustaining the demand for turbine internals.

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Key Market Challenges

Supply chain volatility and fluctuating raw material costs represent a primary obstacle hindering the expansion of the Global Wind Turbine Shaft Market. Wind turbine shafts are massive, precision-engineered components that require significant quantities of high-grade steel to withstand intense mechanical stress. When the supply of these essential raw materials becomes inconsistent, manufacturers face severe production bottlenecks. These disruptions lead to extended lead times, making it difficult for suppliers to adhere to the strict delivery schedules required by wind farm developers. Consequently, the inability to predict material availability creates logistical inefficiencies that stall manufacturing lines and delay project completion.

Furthermore, price instability regarding industrial metals directly impacts the financial viability of shaft production. As demand for resources rises across various industrial sectors, the competition for specialized steel intensifies, driving up procurement expenses. According to the World Steel Association, in 2024, global steel demand was forecast to rebound by 1.7 percent, reaching a total of 1,793 million tonnes. This aggregate increase in demand sustains high input costs for shaft manufacturers, thereby eroding profit margins and inflating the overall capital expenditure required for wind energy projects. These economic pressures ultimately constrain the market's capacity to scale operations efficiently.

Key Market Trends

The Integration of Condition Monitoring Sensors for Predictive Maintenance is reshaping the market by transitioning maintenance strategies from reactive to proactive. Wind turbine shafts endure immense torque and bending loads, making them susceptible to fatigue cracks and misalignment that can lead to catastrophic drivetrain failures. To mitigate this, operators are increasingly embedding advanced vibration and acoustic emission sensors directly onto the shaft assembly to monitor real-time stress levels and predict remaining useful life. This technological integration secures long-term operational reliability, driving the expansion of comprehensive service agreements. According to Vestas, November 2025, in the 'Interim Financial Report, Q3 2025', the company reported a combined order backlog of EUR 68.2 billion, reflecting the industry's massive commitment to long-term service and maintenance contracts that rely heavily on such predictive technologies.

A Growing Preference for Remanufactured and Refurbished Turbine Shafts is emerging as a sustainable alternative to producing new components for aging fleets. As thousands of turbines approach the end of their design life, operators are prioritizing life-extension strategies that utilize laser cladding and precision machining to restore worn shafts to their original specifications. This approach significantly reduces the carbon footprint associated with manufacturing virgin steel and alleviates the financial burden of full turbine replacement. The market activity surrounding end-of-life assets is quantifying this shift; according to WindEurope, February 2025, in the 'Wind energy in Europe: 2024 Statistics' report, the European region repowered 1.6 GW of wind capacity in 2024, highlighting the substantial volume of aging infrastructure where refurbishment and lifetime extension solutions are becoming increasingly critical.

Segmental Insights

The Offshore segment is projected to be the fastest-growing category in the Global Wind Turbine Shaft Market, driven by the increasing deployment of high-capacity marine wind farms. This expansion is primarily fueled by the demand for larger, high-strength shafts capable of withstanding corrosive environments and supporting heavier turbine loads. Additionally, favorable policy frameworks and renewable energy targets promoted by institutions such as the Global Wind Energy Council are accelerating offshore project development. These factors collectively impel manufacturers to prioritize the production of specialized components suited for the rigorous demands of deep-water energy generation.

Regional Insights

Europe holds a leading position in the global wind turbine shaft market due to comprehensive renewable energy mandates and significant investments in offshore wind infrastructure. The European Green Deal establishes strict carbon reduction goals, compelling member nations to expand wind energy capacity rapidly. This regulatory environment supports a robust industrial ecosystem, hosting major original equipment manufacturers that drive the procurement of essential turbine components. Consequently, the continuous development of large-scale wind projects creates sustained demand for shafts, ensuring Europe remains the primary hub for sector growth and supply chain development within the wind energy industry.

Recent Developments

• In October 2025, Jinlei Technology Wind Industry reported a strong financial performance for the third quarter, attributing its revenue growth to the robust global demand for wind turbine shaft products. The company, a specialized manufacturer of wind power main shafts, highlighted that the continuous expansion of the wind energy industry and the trend towards larger turbine capacities had significantly boosted its order volumes. This performance underscored the increasing reliance of global turbine original equipment manufacturers on specialized shaft suppliers to meet the technical and volume requirements of modern wind power projects.
• In December 2024, Sheffield Forgemasters reported a substantial year-on-year increase in its order intake, driven significantly by its strategic focus on the renewable energy sector. The engineering specialist secured major commercial contracts to manufacture complex forged and cast components for the offshore wind industry, reinforcing its position in the supply chain for critical turbine parts. This surge in orders highlighted the growing market demand for high-quality, large-scale steel components, such as main shafts and rotor hubs, necessary for the deployment of advanced offshore wind farms.
• In March 2024, ZF Wind Power announced the expansion of its manufacturing capabilities with the installation of three serial production lines at its plant in Lommel, Belgium. The company invested in these new lines to produce complete onshore and offshore wind turbine powertrains and gearboxes, responding to the surging European demand for renewable energy infrastructure. The expanded facility was designed to assemble and test integrated drivetrain systems, which include the main shaft, gearbox, and generator, ensuring the delivery of high-performance components required for the growing wind energy market.
• In February 2024, Schaeffler announced its collaboration with the Lindø Offshore Renewables Center (LORC) to utilize the world's most powerful test facility for wind turbine main shaft bearing systems. The company became the first customer to conduct testing at the new Danish facility, which was designed to simulate the extreme forces and torques exerted on the main shafts of future multi-megawatt wind turbines. This initiative allowed the supplier to validate its main shaft bearing technologies under realistic conditions, supporting the development of more reliable and efficient drivetrains for the next generation of large-scale offshore wind turbines.

Key Market Players

• Schaeffler Technologies AG & Co. KG
• Jiangyin Zenkung Forging Co., Ltd.
• Luoyang Yujie Industry & Trade Co. Ltd
• Western Machine Works, LLC
• Broadwind Energy, Inc
• Siemens Gamesa Renewable Energy, S.A.
• Wuxi Solar Wind Energy Technology Co. Ltd
• Liebherr Group
• Altra Industrial Motion Corp
• Sany Group

By Application	By Type	By Material Type	By Region
Offshore and Onshore	Main Shaft and Generator Shaft	Metal and Synthetic Composites	North America Europe Asia Pacific South America Middle East & Africa

Report Scope:

In this report, the Global Wind Turbine Shaft Market has been segmented into the following categories, in addition to the industry trends which have also been detailed below:

• Wind Turbine Shaft Market, By Application:

• Offshore and Onshore

• Wind Turbine Shaft Market, By Type:

• Main Shaft and Generator Shaft

• Wind Turbine Shaft Market, By Material Type:

• Metal and Synthetic Composites

• Wind Turbine Shaft Market, By Region:

• North America
• United States
• Canada
• Mexico
• Europe
• France
• United Kingdom
• Italy
• Germany
• Spain
• Asia Pacific
• China
• India
• Japan
• Australia
• South Korea
• South America
• Brazil
• Argentina
• Colombia
• Middle East & Africa
• South Africa
• Saudi Arabia
• UAE