Guojian (Tianjin) Steel Co., Ltd. is a manufacturing enterprise based in the Tianjin steel production hub, specializing in Ground‑Mount Solar Mounting System. We operate multiple CNC punching and hot-dip galvanizing lines, handling the entire production process in-house—from raw material leveling and cutting to punching, bending, and anti-corrosion surface treatment. We serve a wide range of projects, including utility-scale power plants, mountainous PV installations, and "fishery-PV" or "pasture-PV" hybrid systems. Our technical team provides customized layout plans and structural verification reports based on project-specific data such as geographic coordinates, wind and snow loads, and terrain slope. Through long-standing partnerships with major steel mills, we maintain cost-effective raw material procurement and substantial inventory across various specifications, ensuring rapid shipment of standard products. Every batch undergoes dimensional spot checks and load verification before leaving the factory and comes with comprehensive material reports and certificates of conformity. We offer a 10-year structural warranty and on-site technical guidance to ensure the long-term reliability of your power plant project.
Our ground-mounted racking systems are constructed from high-strength Q235B/Q355B structural steel and feature a hot-dip galvanized finish with a coating thickness of ≥65μm. They offer exceptional resistance to corrosion, UV radiation, and weathering, making them suitable for long-term use in harsh environments—including saline-alkali, humid, and high-temperature conditions. With a design service life exceeding 30 years, these systems significantly reduce long-term maintenance costs for power plants.
We offer three main categories of Ground‑Mount Solar Mounting System—fixed, adjustable, and single-axis tracking—allowing for flexible selection based on project latitude, terrain, and return-on-investment requirements. Fixed systems offer low costs and high stability; adjustable systems allow for seasonal tilt angle modifications to boost power generation by 5%–8%; and tracking systems follow the sun's altitude angle in real-time, increasing power output by up to 15%–25%. We comprehensively meet the unique needs of various power plant projects.
Every mounting system design undergoes professional structural calculations based on local basic wind pressure, snow load, and seismic intensity. Key components—such as main uprights, crossbeams, and diagonal braces—are validated through finite element analysis, ensuring resistance to severe typhoons (exceeding Beaufort scale 12) and snow loads up to 50 cm thick. Connection points feature a reinforced design using Grade 8.8 high-strength hot-dip galvanized bolts, guaranteeing the structure's stability and reliability even in extreme weather conditions.
The Ground‑Mount Solar Mounting System utilizes a modular, pre-assembled design. Components undergo all manufacturing processes—including punching, bending, and galvanizing—at the factory, eliminating the need for on-site welding or secondary processing; rapid assembly is achieved simply through bolting. Installation time per unit is reduced by over 60% compared to traditional welding methods. Supported by standardized installation manuals and on-site technical guidance, the power plant construction cycle is significantly shortened, facilitating earlier grid connection and power generation.
Guojian Steel operates a modern 50,000 m² production facility equipped with multiple CNC punching, bending, and hot-dip galvanizing lines. We independently manage the entire process—from raw material leveling and cutting to punching, bending, and hot-dip galvanizing—without relying on external contract manufacturers. This full-chain control ensures consistent quality at every stage and eliminates intermediate trading steps, offering superior price competitiveness for the same quality and allowing customers to enjoy the cost-effectiveness of direct factory sourcing.
Our technical team boasts over a decade of experience in PV mounting system design. We provide complimentary, tailored mounting solutions and structural load calculation reports based on project-specific meteorological data, module specifications, array layouts, and terrain conditions. For complex terrains—such as mountainous areas, water surfaces, or agrivoltaic sites—we offer diverse foundation options, including driven piles, screw piles, and concrete ballast blocks, ensuring a perfect match between the mounting system and the site while maximizing land resource utilization.
Every batch of mounting structures undergoes three stages of quality inspection before leaving the factory: incoming raw material verification (material composition, thickness, and galvanization coating), in-process inspections (dimensional accuracy and hole position tolerances), and final product inspection (load-bearing sample testing and surface quality). All products are supplied with material certificates, galvanization test reports, and certificates of conformity. We also provide comprehensive after-sales support, including 24-hour technical response, on-site installation guidance, and a product quality warranty of up to 10 years, ensuring a worry-free purchasing experience for every customer.
Address
No. 2, Expressway Auxiliary Road, South Area of High-tech Industrial Park, Zitai Economic and Technological Development Zone, Tianjin, China
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