About Us

Company Profile

Ningbo Xuanli High Strength Fasteners Co., Ltd. is located in the Xijingtang Industrial Zone, Zhenhai District, Ningbo City, Zhejiang Province. It is a high-tech enterprise specializing in the R&D and manufacturing of fasteners for the wind power industry. The company’s flagship products include: prestressed anchor bolts for wind turbine foundations, anchor plates, bolts for wind turbine towers, bolts for connecting wind turbine blades, bolts for wind turbine nacelles, as well as other high-strength fasteners for steel structures. The company’s production capacity is among the industry’s leading, with an annual output exceeding 50,000 tons (equivalent to 4,000 sets of anchor bolt assemblies).

Since its establishment, the company has successively been awarded honors including Ningbo High-Tech Enterprise, Standing Council Member of the Ningbo Science and Technology Innovation Unit, Demonstration Enterprise for Intellectual Property in the Ningbo Science and Technology Innovation Industry, “Pinzi” Certified Enterprise under Zhejiang Manufacturing, and inclusion on the Ningbo “Specialized, Refined, Distinctive, and Innovative” list. It is a long-term qualified supplier to China’s top ten wind turbine manufacturers, such as Goldwind Science & Technology Co., Ltd., Envision Energy Co., Ltd., Mingyang Smart Energy Group Co., Ltd., Yunda Wind Power Technology Group Co., Ltd., Dongfang Electric Wind Power Co., Ltd., Sany Heavy Energy Co., Ltd., Shanghai Electric Wind Power Group Co., Ltd., the Wind Power Division of CRRC Zhuzhou Institute of Electric Power, Shandong CRRC Wind Power Co., Ltd., and CSSC Haizhuang Wind Power Co., Ltd. Its customer base spans China’s five major power generation groups—China Huaneng, China Datang, China Huadian, State Power Investment Corporation, and China Guodian—and it maintains long-term partnerships with construction entities including PowerChina, China Energy Engineering Group, China Energy Conservation, CGN, China Three Gorges New Energy, China Resources Power, SDIC Power, China Aneng, China Nineteen Metallurgical Construction, CNNC Construction, and China National Chemical Corporation.

The company occupies an area of approximately 50,000 square meters and currently employs nearly 200 staff members, including 28 professionals holding mid‑level or senior titles. It operates manufacturing facilities in Ningbo, Zhejiang, and Xianyang, Shaanxi. The company boasts a highly professional management team with extensive industry experience across business development, engineering, production, and after-sales service, and has established a comprehensive ISO‑compliant quality management system.

Ningbo Xuanli High Strength Fasteners Co., Ltd. boasts highly automated production equipment and comprehensive testing facilities. It is equipped with advanced production lines, including a fully automatic medium-frequency induction heating furnace line, a fully automatic high-speed circular saw machine, centerless cylindrical CNC lathes, CNC press‑bending and straightening machines, a Dacromet coating line, CNC plasma cutting machines, a dual‑station CNC machining center, a vertical gantry machining center, and a fully automatic thermal spraying line. The company also operates an independent quality inspection center, offering nondestructive testing, metallographic analysis, and mechanical property testing, with testing equipment covering the entire process—from raw materials to finished products.

Over the years, the company has earned widespread customer trust through continuous technological innovation, comprehensive wind‑turbine fastener product solutions, and consistent quality and exemplary service on major projects. It has supplied components for more than 20,000 wind turbines, with its services spanning every province across mainland China. Actively aligning with the Belt and Road Initiative, its products have reached markets in India, Vietnam, the Philippines, Cambodia, Laos, as well as overseas countries such as Russia, Uzbekistan, and Saudi Arabia, contributing Chinese manufacturing to the global clean‑energy transition and establishing a renowned brand in the wind‑turbine fastener industry.

Guided by the corporate mission of “creating premium products, putting customers first, and prioritizing reputation,” our company is committed to providing more customers with top‑notch products and even higher‑quality service.

We warmly welcome domestic and international partners, experts, and leaders to visit us for inspection and guidance!

Company
Company

Corporate Culture

Corporate Vision:Becoming a benchmark enterprise in the wind power fastener industry.

Corporate Mission:Create premium quality, put customers first, and prioritize reputation.

Corporate Spirit:Forge ahead with determination, dare to lead, and constantly strive for excellence.

Corporate Business Philosophy:People-oriented, honest and trustworthy, giving back to society.

Corporate culture

Qualification Certification

High-tech Enterprise Certificate
ISO 45001 Occupational Health and Safety Management System Certification Certificate
ISO 14001 Environmental Management System Certification Certificate
ISO 9001 Quality Management System Certificate
Zhejiang Manufacturing Certification Certificate
Safety Production Certificate
Technology Innovation Demonstration Enterprise
Patent Certificate
Credit Certificate
Credit Certificate
Credit Certificate
Credit Certificate

Partner

Partner Clients
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Partner Clients
Partner Clients
Partner Clients
Partner Clients
Partner Clients
Partner Clients
Partner Clients
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Partner Clients
Partner Clients
Partner Clients
Partner Clients
Partner Clients
Partner Clients

Production Capacity

Automated production equipment (anchor bolts)

Automated Medium-Frequency Induction Heat-Treatment Production Line

Automated Medium-Frequency Induction Heat-Treatment Production Line

Fully automatic high-speed circular saw machine

Fully automatic high-speed circular saw machine

CNC Calendering and Straightening Machine

CNC Calendering and Straightening Machine

CNC cylindrical peeling machine

CNC cylindrical peeling machine

Automated production equipment (anchor plate)

CNC plasma laser cutting machine

CNC plasma laser cutting machine

Dual-station CNC machining center

Dual-station CNC machining center

Fully automatic sandblasting and coating line

Fully automatic sandblasting and coating line

Large gantry machining center

Large gantry machining center

Testing Equipment

Our company operates a 360-square-meter quality‑testing center equipped with a comprehensive suite of testing and inspection instruments, including chemical analyzers, optical emission spectrometers, metallographic microscopes, hydraulic universal testing machines, horizontal tension testing machines, torque testers, hardness testers, salt‑spray chambers, low‑temperature impact testers, as well as nondestructive testing equipment such as magnetic particle flaw detectors and digital ultrasonic flaw detectors—covering the entire production process, from raw materials to finished‑product release.

Physicochemical and Mechanical Property Testing Equipment

Physicochemical and Mechanical Property Testing Equipment

Microcomputer-controlled hydraulic universal testing machine

Microcomputer-controlled hydraulic universal testing machine

Metallographic Analysis and Mechanical Property Testing Equipment

Metallographic Analysis and Mechanical Property Testing Equipment

Microcomputer-Controlled Horizontal Tensile Testing Machine

Microcomputer-Controlled Horizontal Tensile Testing Machine

Nondestructive Testing—Digital Ultrasonic Flaw Detector

Nondestructive Testing—Digital Ultrasonic Flaw Detector

Nondestructive Testing—Magnetic Particle Inspector

Nondestructive Testing—Magnetic Particle Inspector