Qingdao BEST Steel Structure Co., Ltd. is one of the leading manufacturers and suppliers of angle steel transmission towers in China. With abundant experience, Our factory offer high quality products made in China with competitive price. Welcome to contact us for customized service and OEM service.
As a core load-bearing infrastructure for power grid construction, the angle steel transmission tower is a lattice steel structure product made of high-quality carbon angle steel as the main component. It is specially designed to provide aerial erection support for high-voltage, extra-high-voltage and ultra-high-voltage power transmission cables and supporting electrical components, serving as key equipment to ensure the stable transmission of long-distance, large-capacity electric power. It is widely applicable to power transmission projects in various landforms and complex environments.
The tower adopts national standard high-quality carbon angle steels Q235 and Q355, all sourced from qualified large-scale steel mills and certified by State Grid Corporation of China and China Southern Power Grid. The overall tower body is treated with standardized hot-dip galvanizing anti-corrosion technology, undergoing refined processing through multiple procedures including pickling, fluxing, galvanizing and cooling. The coating is uniform, compact and highly adhesive, enabling long service life and reducing the full life cycle operation and maintenance costs.
Product Parameter(specification)
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Height |
From 10M-120M or according to customer's requirement |
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Color |
Original zinc silver or painted according to customer's requirement |
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Shape |
According to design drawings |
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Material |
Normally Q235B/A36,Yield Strength≥235MPa |
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Q235, Q355B/A572,Yield Strength≥355MPa, Q420, Yield Strength≥420MPa |
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Tolerance of the dimension |
According to customers requirement |
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Surface treatment |
Hot-dip-galvanized, or any other standard by client's requirement |
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Joint of Poles |
Slip joint, flanged connected |
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Standard |
ISO9001:2008 |
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Length of per section |
Within 13M once forming |
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Welding Standard |
GB50661-2011/AWS(American Welding Society)D 1.1 |
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Production Process |
Incoming material test and inspection - raw material cutting and holes punching - connecting parts processing - mounting parts tack and welding - surface treatment by hot dip galvanizing - final inspection and packaging |
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Packages |
Packing with protective material or according to customer's requirement |
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Durability |
The Angle Steel Transmission Towers can last More than 30 years according to installing environment |

Product characteristics and application
High-Quality & Durable Material: The angle steel transmission tower takes national standard Q235 and Q355 high-quality carbon angle steels as its core components. All main materials are selected from large qualified steel mills and have passed qualification verification, featuring stable mechanical properties and high tensile and compressive strength. The lattice assembly structure ensures uniform stress distribution and resistance to external forces such as strong winds, temperature deformation and slight geological disturbances, guaranteeing overall structural stability.
Excellent Anti-Corrosion Performance: The entire tower body adopts standardized hot-dip galvanizing anti-corrosion technology, going through multiple processes including pickling, fluxing, hot-dip galvanizing and cooling. The coating is uniform, compact with strong adhesion and no missing plating, which reduces the full life cycle operating cost.
Convenient & Efficient Installation: All angle steel components are processed by CNC equipment for cutting, punching and bending, with small dimensional errors and accurate bolt hole alignment. Key modules are trial-assembled before delivery to eliminate on-site hole reaming and part modification. Adopting modular prefabrication and bolt splicing mode, on-site welding is not required, which not only shortens the construction period but also facilitates transportation and hoisting in inaccessible areas, featuring low construction difficulty and high implementation efficiency.
Adaptable to Diverse Needs: The tower height, load capacity, crossarm length and structural inclination can be flexibly adjusted according to actual engineering requirements. It supports the erection of single-circuit, double-circuit and multi-circuit transmission lines, perfectly matching project requirements of different voltage levels and terrain conditions.

Production details and product qualification
Welding procedures and quality control are implemented throughout the entire product production flow. Compliant welding processes such as manual arc welding and submerged arc welding are adopted, with welding materials precisely matched to the base metal. Welds feature a smooth appearance free of cracks, blowholes and slag inclusions. Ultrasonic non-destructive testing is carried out on critical welds to ensure the strength of welded joints meets standards and eliminate potential risks of structural fracture under stress. Hot-Dip Galvanizing Anti-Corrosion Treatment. The product surface is treated with hot-dip galvanizing anti-corrosion technology in strict accordance with standardized anti-corrosion procedures. It undergoes refined processing through multiple steps including pickling, water washing, fluxing, drying, hot-dip galvanizing and cooling. The coating is uniform, compact and free of missing plating, providing long-term protection against salt spray, acid rain and ultraviolet erosion. Assembly Trial-Assembly and Factory Inspection. Factory trial-assembly is conducted on key modules before delivery to verify the overall verticality, diagonal deviation and bolt alignment accuracy, ensuring hassle-free on-site installation. A factory qualification certificate is issued only after all inspection items are qualified, accompanied by a complete quality inspection report to realize full-process quality traceability.

Commitment to Quality, Safety, and Compliance:
We operate under the ISO 9001:2015 quality management system and adhere to the GB 50661-2011 standard for steel structure welding, ensuring process stability, work quality, and full traceability. The company is also certified with ISO 45001 (Occupational Health and Safety) and ISO 14001 (Environmental Management), reflecting our commitment to safety, health, and environmental protection throughout all operations.
Why choose Angle Steel Transmission Towers from Qingdao BEST Steel Structure Co., Ltd.?
With years of deep cultivation in the manufacturing of angle steel transmission towers, our company takes full-chain quality control, precise customization and high cost-effectiveness as our core competitiveness. We reject homogeneous shortcomings and become a preferred partner for power grid engineering projects with robust strength.In terms of material selection, we adopt national standard Q235 and Q355 angle steels from reputable large steel mills. Each batch of raw materials undergoes dual testing of mechanical properties and chemical compositions, eliminating inferior base materials from the source to ensure the tower body meets both strength and durability standards.
The entire manufacturing process is carried out with CNC equipment, and the deviations of hole positions and dimensions are strictly controlled within the standard range. Trial assembly of key modules is completed before delivery, achieving zero rework during on-site installation and greatly improving construction efficiency.Adopting standardized hot-dip galvanizing technology, the coating is uniform and free of dead corners, featuring excellent salt spray resistance and aging resistance. It is adaptable to harsh environments such as coastal areas, alpine regions and mining areas, with outstanding anti-corrosion and quality retention performance.
Enquire to us today and establish partnership with one of the most trustworthy and reliable steel tower supplier in China.
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