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ProductsWe are a manufacturing enterprise specializing in profile fabrication and advanced steel processing, with established scale and strong capabilities. Currently, we employ over 100 staff and boast a highly skilled service team. Leveraging years of experience in profile processing and a dedicated R&D team, we continuously develop photovoltaic mounting systems that offer high reliability and cost-effectiveness. In addition to providing customers with standardized PV mounting products, we also deliver comprehensive system design and related services.
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About UsGuojian (Tianjin) Iron & Steel Co., Ltd. was established in November 2020 with a registered capital of RMB 50 million. Located in Jinghai District, Tianjin, the company has an annual production capacity of 420,000 metric tons. We are a manufacturing enterprise specializing in the production of structural steel products and the deep processing of steel materials.
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SupportA scientifically sound management system and state-of-the-art production equipment enable us to deliver higher-quality services to our customers.
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BlogWith a considerable scale and strong capabilities, we currently employ over 100 staff and boast a highly skilled service team. We continuously research and develop photovoltaic mounting systems that offer high reliability and cost-effectiveness.
Support
Providing design and services for photovoltaic mounting systems to clients.
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GUOJIAN
FAQ
Providing design and services for photovoltaic mounting systems to clients.
Three key points require close attention: First, foundation construction must be tailored to the site topography and load calculations; in mountainous areas, unstable pile foundations should be avoided, while coastal installations must incorporate robust wave-resistant anchoring. Second, regarding angle adjustment and locking, once adjustable or tracking brackets have been set, they must be mechanically locked; adjustments are strictly prohibited during high-wind conditions (wind speeds exceeding 20–25 m/s) or blizzard events. Third, routine maintenance entails regular inspections of bracket corrosion, anchor tension (particularly for flexible brackets), and module clamps, to prevent hidden cracks in modules or instability of the mounting structure.
Compared with fixed mounts, manually or electrically adjustable mounts (with seasonally optimized tilt angles) can increase power generation by 5%–10% in mid- and high-latitude regions; single-axis tracking mounts can boost output by 15%–20%, while dual-axis tracking can deliver an increase of 25%–30%. Whether such investments are worthwhile depends on the project scale: for small residential systems, fixed mounts are generally preferred due to their lower cost, whereas for medium- to large-scale ground-mounted plants, the payback period for tracking or adjustable mounts typically ranges from 3 to 5 years, depending on local sunshine duration and electricity prices.
The mainstream materials are carbon steel (with hot-dip galvanizing), aluminum alloy, stainless steel, and polymer materials (carbon fiber/aramid). For typical onshore projects, carbon steel is the preferred choice due to its cost-effectiveness and corrosion resistance; in coastal areas, salt-mist environments, or agrivoltaic applications, aluminum alloy or stainless steel is recommended to enhance corrosion resistance; and for high-altitude applications or scenarios with stringent weight requirements, polymer materials are an option—although more expensive, they offer significant weight-reduction benefits.
Photovoltaic mounting systems are broadly categorized into four main types: fixed mounts, adjustable mounts (manual or motorized), flexible mounts, and tracking mounts (single-axis or dual-axis). Fixed mounts are ideal for small ground-mounted plants or rooftop projects with limited budgets and flat terrain; adjustable mounts are suited to mid- and high-latitude regions, allowing seasonal tilt adjustments to maximize power output; flexible mounts are best for complex terrains such as mountainous areas and agrivoltaic installations, as well as large-span applications; and tracking mounts are most appropriate for large-scale ground-mounted plants in well-lit desert and plain environments, offering the highest energy-generation efficiency but also higher capital costs and more demanding maintenance requirements.
Phone:022-59656011
Email:1372374728@qq.com
Address: No. 2, Expressway Auxiliary Road, Tianyu Science and Technology Park, Jinghai District, Tianjin
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