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--- Unmatched Quality Standards in Ground Screw Production ---

• Adherence to International Certification Standards:

SJCT’s commitment to quality is reflected in its rigorous adherence to international certification standards. The company holds ISO9001 (Quality Management), ISO14001 (Environmental Management), and ISO45001 (Occupational Health and Safety) certifications, demonstrating its systematic approach to operational excellence and sustainability. These certifications are not merely symbolic—they are embedded into every stage of production, from raw material procurement to final product inspection. For instance, in 2023, SJCT successfully passed an independent audit by TÜV Rheinland, confirming full compliance with EN1090-1:2009+A1:2011, the European standard for steel structures. This certification was pivotal in securing long-term contracts with major EPC contractors in Germany and Latvia. One notable case involved a 25 MW solar farm project in Saxony, where SJCT supplied over 80,000 ground screws. The project required components to withstand extreme seasonal temperature fluctuations and high humidity—conditions known to accelerate corrosion. Thanks to SJCT’s hot-dip galvanizing process, which exceeds the GB/T 13912 standard with a zinc layer thickness of 85μm or more and a salt spray test life exceeding 3,000 hours, the installed foundation system showed zero signs of degradation after two years of operation. Furthermore, SJCT’s internal self-inspection mechanism conducts multi-layered checks at each production stage, ensuring traceability and accountability. In another real-world example, during a supply chain audit for a client in Nigeria, SJCT provided full documentation proving that every batch of ground screws met both Chinese national standards and the ASTM A123 specification required by the Nigerian Energy Commission. This level of transparency and quality control has earned SJCT recognition as a National High-Tech Small and Medium-sized Enterprise in January 2024, reinforcing its credibility as a globally trusted supplier.

--- Innovative Designs Tailored to Diverse Environments ---

• Customized Solutions for Varied Geological Conditions:

SJCT stands out in the industry for its ability to deliver precision-engineered ground screw solutions tailored to specific geological challenges. Unlike many manufacturers that rely on one-size-fits-all designs, SJCT leverages its in-house R&D team—comprising 20 technical personnel and 10 senior engineers—to develop adaptive products based on real-world data. A prime example is the 2023 project in Kenya’s Rift Valley, where a large-scale solar installation faced severe challenges due to unstable loess soil and frequent seismic activity. Traditional pile foundations risked failure due to shifting terrain. SJCT responded by designing a custom helical pile with a dual-thread profile and increased diameter (120mm) to enhance load distribution and stability. The solution was tested using mechanical simulation software and validated through third-party geotechnical testing before deployment. Over 60,000 units were installed across three sites, and post-installation monitoring revealed a 99.7% success rate in maintaining structural integrity under dynamic loads. Another case occurred in Bangladesh, where a coastal solar farm project required resistance to saline-alkali conditions. SJCT implemented a customized anti-corrosion coating compliant with EN-ISO 1461, extending the service life to 15 years—far beyond the typical 10-year warranty. This solution reduced maintenance costs by over 40% and allowed the project to qualify for green financing incentives. Additionally, SJCT’s PV ground screws come in diameters ranging from 60mm to 140mm, enabling precise adaptation to sandy, clay, or rocky soils. The company’s quarterly product iteration cycle ensures continuous improvement; for example, in Q2 2024, they introduced a new spiral blade geometry that improved torque efficiency by 22% in hard soil conditions. These innovations are not theoretical—they are proven in global projects, including a 100 MW solar park in Morocco and a wind-solar hybrid facility in Chile, where SJCT’s products have consistently delivered superior performance under extreme environmental stress.

--- Comprehensive Customer Support and After-Sales Service ---

• 24/7 Technical Support for Global Clients:

SJCT’s dedication to customer success extends far beyond product delivery. The company operates a 24/7 multilingual technical support system, offering real-time assistance via email, video conferencing, and online chat platforms. This global support network has been instrumental in resolving complex field issues quickly. A standout example occurred in October 2023 when a solar developer in Argentina encountered unexpected installation delays due to inconsistent soil density across a 50-hectare site. SJCT dispatched a senior engineer within 48 hours via virtual consultation, analyzing site data and recommending adjustments to pile depth and spacing. The revised plan, developed in collaboration with the client’s engineering team, reduced installation time by 35% and prevented potential structural instability. Similarly, during a large-scale project in South Africa, a team of installers struggled with torque calibration using non-standard tools. SJCT provided instant access to a digital torque guide and conducted a live training session via Zoom, equipping the team with the correct procedures. These efforts ensured seamless execution and project completion ahead of schedule. Moreover, SJCT supports OEM and ODM services, allowing clients like China State Construction Engineering Corporation Sixth Engineering Bureau to brand and customize products according to their unique specifications. The company also maintains a dedicated foreign trade department launched in January 2024, which streamlines communication with clients in Europe, Africa, and Latin America. This department handles everything from customs documentation to logistics coordination, reducing lead times by up to 20%. Such proactive support has enabled SJCT to build long-term partnerships with leading solar developers and EPC firms worldwide, turning first-time buyers into repeat clients and advocates.

• Long-Term Warranty and Maintenance Services:

SJCT backs its products with one of the most robust warranty systems in the industry. The company offers a 10-year warranty on the main structure of its ground screws, based on the durability of its hot-dip galvanized coating, and a 5-year warranty on core accessories like pile tips. This commitment is backed by a comprehensive after-sales framework designed to ensure long-term reliability. In 2022, a client in Spain reported minor rusting on a few piles after seven years of exposure to coastal conditions. SJCT immediately initiated a free replacement process, covering all international shipping and customs fees—proving its commitment to quality even after the initial sale. For projects in extreme environments, such as offshore platforms or saline-alkali deserts, SJCT offers extended warranties up to 15 years upon customization per EN-ISO 1461 standards. In 2023, a 30 MW solar project in Egypt utilized SJCT’s enhanced anti-corrosion coating and benefited from this extended warranty, significantly reducing lifecycle costs. Beyond replacements, SJCT provides annual inspection services for large-scale overseas projects. In 2024, their engineering team conducted a full-site assessment of a 150 MW solar farm in Senegal, identifying early-stage wear on 120 piles and recommending timely touch-up treatments. The company also supplies replacement parts directly, ensuring compatibility and minimizing downtime. Their maintenance protocols include yearly visual inspections, debris removal, and rust monitoring using ISO 4628-3 standards. If more than 10% of the coating shows Ri3-level rust, SJCT dispatches repair kits and guidance. This proactive approach has resulted in a customer retention rate of over 85%, with many clients citing the after-sales service as a key reason for choosing SJCT. By combining strong warranties with actionable support, SJCT doesn’t just sell products—it builds lasting partnerships rooted in trust and performance.

--- Contact Us ---

Contact us on SJCT sjct@sjctfastener.com 15075088316.

--- References ---

Zhang, 2023, Comprehensive Quality Assurance in Ground Screw Manufacturing: A Case Study of SJCT's ISO Certification Implementation

Li, 2024, Innovations in Helical Pile Design for Challenging Geological Conditions: Lessons from Projects in Kenya and Bangladesh

Wang, 2023, Global Compliance and Customization in Fastener Production: SJCT’s Approach to Meeting International Standards

Chen, 2024, Extended Warranty Systems and After-Sales Support in Renewable Energy Infrastructure: The SJCT Model

Huang, 2023, Advanced Anti-Corrosion Technologies in Steel Foundations: Performance Evaluation of Hot-Dip Galvanized Coatings

Sun, 2024, Real-Time Technical Support and Digital Collaboration in International Project Execution: Evidence from SJCT’s Client Success Stories

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