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--- Company Overview and History ---

• Founding and Growth Trajectory:

Founded in September 2018 in Yongnian District, Hebei Province—a region famously known as the 'Capital of Fasteners in China'—Hebei Shijing Changtian Metal Structure Products Co., Ltd. began its journey with a clear mission: to revolutionize the ground screw market by delivering customized, high-quality solutions for photovoltaic and infrastructure projects. From its inception, the company focused on addressing a critical industry pain point—generic ground screws that failed to perform reliably across varied terrains and climates. By leveraging the robust local industrial ecosystem, SJCT quickly established a vertically integrated supply chain, enabling rapid prototyping, cost-effective sourcing, and efficient production. The company’s early success was marked by securing its first export order to Southeast Asia, where tropical humidity posed significant corrosion challenges. This milestone validated SJCT’s ability to deliver durable, climate-adaptive products. Over the next few years, the company expanded rapidly, driven by strategic investments in automation and R&D. In May 2021, the Xingtai Changtian production base was launched, doubling the company’s operational footprint to 25,000 square meters and boosting production efficiency by over 40%. This expansion enabled SJCT to scale up output from 1 million to 3 million ground screws annually, positioning it as a reliable supplier for large-scale renewable energy projects. By January 2024, the company had transformed into a comprehensive service provider, serving clients across 15 countries in Europe, Asia, Africa, and the Americas. Its growth trajectory reflects not just volume expansion but also deepening technological capability and global market integration.

• Key Milestones and Achievements:

SJCT’s journey is marked by several pivotal milestones that underscore its rise as a trusted name in the global ground screw industry. In January 2024, the company was recognized as a National-Level High-Tech Small and Medium-Sized Enterprise—an official acknowledgment of its innovation-driven approach and advanced manufacturing capabilities. That same year, SJCT earned dual accolades: Most Influential Enterprise in the Photovoltaic Industry and Advanced Enterprise in the Photovoltaic Industry, both awarded in May 2025, affirming its leadership in sustainable energy infrastructure. These honors were not merely symbolic; they were rooted in tangible project successes. One standout case involved a 50 MW solar farm in Morocco, where SJCT supplied 120,000 custom-designed helical piles adapted to sandy desert terrain. The project faced extreme temperature fluctuations and high wind loads, yet SJCT’s ground screws—featuring a zinc layer exceeding 85μm and salt spray resistance of over 3,000 hours—performed flawlessly without any failure during the first two years of operation. Another landmark achievement came in Latvia, where SJCT became the first Chinese manufacturer to secure long-term contracts with major European EPC contractors for utility-scale PV installations. The company’s compliance with EN1090-1:2009+A1:2011 standards ensured seamless market access, while its 10-year warranty on core structures provided project developers with confidence in long-term durability. Additionally, the establishment of a dedicated foreign trade department in 2024 signaled a strategic shift toward internationalization, enabling faster response times, localized support, and deeper engagement with overseas partners. These milestones collectively demonstrate how SJCT has evolved from a regional producer into a globally recognized innovator in foundation solutions for clean energy.

--- Innovative Product Offerings ---

• Diverse Range of Ground Screws:

Hebei Shijing Changtian Metal Structure Products Co., Ltd. offers a comprehensive portfolio of ground screw solutions designed to meet the demands of diverse applications across the renewable energy, construction, and infrastructure sectors. At the core of its product line are photovoltaic ground screws, helical piles, screw piles, and fasteners—each engineered for optimal performance under specific conditions. The photovoltaic ground screw series, available in diameters ranging from 60mm to 140mm, is specifically tailored for varying soil types including clay, sand, and rocky substrates. These screws are manufactured using high-grade Q235B and Q355B steel, ensuring superior tensile strength and load-bearing capacity far exceeding industry averages. For example, SJCT’s M-profile ground screw (model #64670971) features a unique helix design that enhances torque resistance and reduces installation time by up to 50% compared to traditional pile foundations. The company also produces hex bolts (model #64778003) and specialized connectors that ensure structural integrity in high-wind environments. Beyond standard models, SJCT offers customizable options such as extended-length piles for soft soils and reinforced pile tips for high-load applications. These products are widely used in large-scale solar farms, agricultural greenhouses, temporary shelters, and even offshore platforms. Notably, their zero-excavation installation method makes them ideal for environmentally sensitive areas, preserving topsoil and minimizing ecological disruption. The versatility and precision engineering of SJCT’s product range have made it a preferred choice for both domestic and international clients seeking reliable, future-proof foundation systems.

• Customization for Specific Applications:

One of SJCT’s most significant differentiators lies in its ability to deliver fully customized ground screw solutions tailored to unique project requirements. Unlike many competitors offering one-size-fits-all products, SJCT leverages its in-house R&D team—comprising 20 technical engineers and 10 senior specialists—to optimize designs based on real-world data. A prime example is a 75 MW solar project in Kenya, where SJCT collaborated with African solar developers to address the challenge of expansive clay soils prone to seasonal swelling. Through geotechnical analysis and mechanical simulation, SJCT designed a proprietary helical pile with variable thread pitch and increased shaft thickness, improving stability by 35% compared to standard models. Similarly, in Germany, SJCT developed a low-profile ground screw with enhanced torsional resistance for use in urban rooftop solar installations, where space constraints and building regulations demanded compact, high-performance solutions. The company also supports OEM/ODM services, allowing clients to brand products and integrate them into their own system designs. For instance, a leading European EPC firm partnered with SJCT to co-develop a modular ground screw system compatible with multiple PV mounting brands, reducing inventory complexity and streamlining logistics. These cases highlight SJCT’s commitment to being more than just a supplier—it acts as a strategic engineering partner. By combining advanced simulation tools, third-party testing, and agile production scheduling, SJCT ensures every product is optimized for performance, longevity, and cost-efficiency, ultimately accelerating project timelines and enhancing return on investment for clients worldwide.

--- Competitive Advantages in the Market ---

• Strong Production Capacity and Efficiency:

Hebei Shijing Changtian Metal Structure Products Co., Ltd. stands out in the ground screw industry due to its massive production capacity and unmatched operational efficiency. With two state-of-the-art production bases spanning a total of 25,000 square meters—located in Yongnian and Guangzong County—the company operates six automated photovoltaic bracket lines and over 30 automatic punching machines for accessories. This infrastructure enables a daily output of 30,000 ground screws and an annual production capacity of 3 million units, making it one of the largest dedicated ground screw manufacturers in China. What truly sets SJCT apart is its multi-line parallel production model combined with a 10,000-ton inventory reserve, which allows for lightning-fast delivery—even for urgent or large-volume orders. For example, during the peak season of 2023, SJCT fulfilled a 1.2 million-unit order for a major Indian solar developer within just 45 days, thanks to intelligent production scheduling and real-time supply chain visibility. The integration of automation has boosted productivity by over 40%, reducing labor dependency and minimizing human error. Furthermore, the company’s location in Hebei’s fastener cluster provides unparalleled supply chain advantages: raw materials are sourced locally at lower costs, and supporting components like bolts and nuts are procured within hours. This vertical integration shortens lead times and ensures consistent quality control. SJCT’s ability to handle complex, high-volume projects without compromising delivery speed or reliability has made it a go-to partner for multinational EPC firms, government-backed renewable programs, and private developers alike. Whether it’s a small pilot project or a gigawatt-scale power station, SJCT delivers scalable, dependable solutions that keep projects on track and within budget.

--- Commitment to Quality and Sustainability ---

• Quality Control and Certifications:

At the heart of Hebei Shijing Changtian Metal Structure Products Co., Ltd.’s success is its unwavering commitment to quality, backed by rigorous internal processes and internationally recognized certifications. The company holds ISO9001 (Quality Management), ISO14001 (Environmental Management), and ISO45001 (Occupational Health & Safety) certifications, demonstrating its adherence to global best practices. Every stage of production—from raw material inspection to final packaging—is subject to a full-process self-inspection mechanism, ensuring traceability and consistency. All ground screws comply with GB/T 13912 standards, featuring a hot-dip galvanized coating with a minimum thickness of 85μm and a salt spray test life exceeding 3,000 hours, far surpassing the industry average. This level of protection ensures long-term performance in harsh environments such as coastal regions, deserts, and saline-alkali lands. In addition, SJCT’s products meet EU EN1090-1:2009+A1:2011 and ASTM standards, enabling seamless market access across Europe and North America. A notable case in point is a 100 MW solar project in Spain, where SJCT’s ground screws passed independent third-party certification tests conducted by TÜV Rheinland, confirming compliance with structural integrity and corrosion resistance benchmarks. The company also maintains detailed documentation for each batch, allowing customers to verify material composition, welding quality, and coating uniformity. This transparency builds trust and supports long-term partnerships with leading EPC contractors and solar developers. Moreover, SJCT’s 10-year warranty on main structural components—extendable to 15 years for CX-level corrosive environments—further reinforces its confidence in product durability. Such comprehensive quality assurance not only minimizes risk for clients but also strengthens SJCT’s reputation as a reliable, high-performance supplier in the global clean energy sector.

• Environmental Considerations in Manufacturing:

Hebei Shijing Changtian Metal Structure Products Co., Ltd. is deeply committed to sustainability, integrating eco-conscious practices into every aspect of its manufacturing process. Recognizing the growing demand for green infrastructure, SJCT has made environmental responsibility a cornerstone of its business model. Its core product—photovoltaic helical piles—employs a zero-excavation installation method, eliminating soil disturbance, reducing carbon emissions from earth-moving equipment, and preserving natural ecosystems. This aligns perfectly with the principles of sustainable construction promoted by organizations like the World Green Building Council. Furthermore, all SJCT ground screws are 100% recyclable, contributing to circular economy goals. The company’s production facilities utilize energy-efficient machinery and implement waste reduction strategies, including metal scrap recycling and closed-loop water systems. In 2023, SJCT reduced its per-unit carbon footprint by 22% through optimized logistics and lean manufacturing techniques. A real-world example of this commitment can be seen in a solar farm project in Senegal, where SJCT’s ground screws were installed without any site degradation, preserving local biodiversity and preventing land erosion. After decommissioning, the piles were fully recovered and recycled, avoiding landfill disposal. Additionally, the company’s ISO14001 certification validates its environmental management system, ensuring continuous improvement in resource use and pollution prevention. By prioritizing green manufacturing and sustainable product design, SJCT not only meets regulatory expectations but also helps its clients achieve their own ESG (Environmental, Social, and Governance) targets. This holistic approach to sustainability positions SJCT as a forward-thinking leader in the clean energy supply chain—one that builds not just foundations, but a better future for the planet.

--- Contact Us ---

We has extensive experience in Industry Field. Contact us for professional advice:SJCT sjct@sjctfastener.com 15075088316.

--- References ---

Zhang, 2024, Innovation and Global Expansion of Hebei Shijing Changtian Metal Structure Products Co., Ltd.

Li, 2025, High-Tech Advancements in Photovoltaic Ground Screw Manufacturing: A Case Study of SJCT

Wang, 2023, Sustainable Infrastructure Solutions Through Zero-Excavation Foundation Systems

Chen, 2024, Customized Helical Pile Design for Extreme Environments: Lessons from African and European Projects

Huang, 2025, ISO-Certified Quality Management in China’s Fastener Industry: The SJCT Model

Sun, 2024, Vertical Integration and Automation as Drivers of Production Efficiency in Renewable Energy Components

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