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Yancheng ACE Machinery Co., Ltd.
Wind Turbine 5MW-10MW 1st/2nd/3rd Stage Sun Gear Forgings Wholesale

Wind Turbine 5MW-10MW 1st/2nd/3rd Stage Sun Gear Forgings


Planetary Gearbox planetary gears, sun gears, planet carriers, and ring gears are core components of the transmission system in wind turbine generators (primarily used in speed increasers). Their design and performance directly determine the power generation efficiency, reliability, and service life of wind power equipment.
They feature high load-bearing capacity and impact resistance, meeting the high-load requirements of wind power applications.
Structural optimizations include:
Adopting a multi-tooth meshing structure of "ring gear + planet carrier + sun gear," where the load is evenly distributed among multiple planetary gears.
Sun gears, planetary gears, and high-speed shafts are made of high-strength carburized steel such as 18CrNiMo7-6. After carburizing and quenching, the surface hardness reaches HRC58-62, while the core hardness is HRC30-35, balancing surface wear resistance with core toughness to withstand long-term alternating loads and impacts.
Wind power planet carriers and ring gears typically use an "integral forging" process (mostly made of 42CrMoA/42CrMo4) to avoid stress concentration in welded structures.
Some high-power models (above 3MW) adopt a "box structure + reinforcing rib" design, which reduces weight while enhancing rigidity. This ensures the "concentricity error of planetary gear shaft mounting holes is ≤0.02mm," preventing meshing eccentric loads between planetary gears, sun gears, and ring gears, and reducing tooth surface wear.

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  • Material 18CrNiMo7-6
    Weight 150-2500KG
    Diameter Ø150mm-800mm
    Length 500mm-2500mm

About Us

ACE Group is a comprehensive enterprise group focused on the heavy industrial manufacturing sector, serving as a China Wind Turbine 5MW-10MW 1st/2nd/3rd Stage Sun Gear Forgings Manufacturers and Wholesale Wind Turbine 5MW-10MW 1st/2nd/3rd Stage Sun Gear Forgings Factory. Its business spans forging, heat treatment, precision machining, welded structures, and heavy-duty power & free chain spraying production. This integrated layout covers the core production processes of the industrial machinery industry, combining technological strength with large-scale production capabilities.

Core Subsidiaries Details:

Jiangsu ACE Energy Technology Co., Ltd.: The group's core production base, officially commencing operations in November 2025. It occupies 55 acres with a total floor area exceeding 50,018 square meters. The factory is equipped with 3-ton, 5-ton, and 15-ton electro-hydraulic hammers; 1-meter and 1.5-meter vertical ring rolling machines; energy-efficient natural gas heating furnaces; heat treatment resistance furnaces; quenching tanks; induction hardening equipment; machining centers; and other production equipment.
Yancheng ACE Machinery Co., Ltd.: Established in 2019, it occupies 20 acres with a floor area of 13,333 square meters. It possesses an integrated welding-straightening structural steel production line and a precision machining workshop.
Yancheng ACE Surface Treatment Technology Co., Ltd.: Operates a heavy-duty power & free chain large-scale powder coating production line. Focusing on professional surface treatment technology, One-time coating thickness achieves 400μm, providing reliable anti-corrosion and weather-resistant protective performance and appearance optimization solutions, enhancing the group's full life-cycle product services.

ACE Group is supported by a management team of young key members who are experienced in materials, heat treatment, machining, and surface treatment industries. They are well-versed in international and domestic standards, pioneering, and committed to innovation. The subsidiary ACE Machinery has passed TÜV Rheinland ISO 9001 Quality Management System certification, as well as ISO 14001, 45001, and 50001 system certifications. It is recognised as a Specialised, Refined, Unique, and Innovative Enterprise, a National High-Tech Enterprise, and holds a 3A-level enterprise credit rating.

Relying on integrated MES and ERP management systems, the integration of informatisation and industrialisation, data cloud storage, and aiming to build a modern, energy-efficient enterprise, the group maintains a comprehensive inspection system. It possesses inspection tools, non-destructive testing equipment, and qualified personnel, implementing strict controls from material internal quality to appearance and dimensions. All outgoing products undergo 100% inspection, adhering to the business philosophy of pursuing 100% qualified outgoing products and zero customer complaints. A CNAS-standard laboratory will be established to provide scientific testing support for quality control during production and technological R&D, thereby enhancing product quality and technological innovation.

In the future, ACE Group will continue to leverage the technical advantages and industrial synergies of its subsidiaries. Through standardised production, specialised technology, integrated services, and a stringent quality control system, it is committed to providing efficient and reliable industrial manufacturing solutions for global clients, steadily advancing towards becoming a leading comprehensive manufacturing service provider in the industry.

Certificate

  • Enterprise Credit Evaluation AAA
  • 2024 Specialized, Refined, Distinctive, and Innovative Enterprise Certificate
  • 2023 High-Tech Enterprise Certificate
  • ISO50001 Energy Management System
  • ISO 45001 Occupational Health and Safety Management System
  • ISO 14001 Environmental Management System
  • ISO 9001 Quality Management System

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