Galvanized Angle Steel Transmission Tower

The galvanized angle steel transmission tower is a spatial lattice structure composed of angle steel members connected by bolts, featuring triangular or quadrilateral cross-sectional design. This truss-based construction achieves the structural advantage of "light weight and high rigidity," effectively dispersing loads through component combinations while significantly reducing wind resistance compared to solid structures.

Our galvanized angle steel transmission towers are engineered to withstand wind loads, ice loads, and conductor tension across diverse weather conditions. With customizable heights from 10m to 200m and voltage ratings from 10kV to 1100kV, these towers serve power transmission, telecommunication, and renewable energy applications worldwide.

Project Cooperation Cases

Philippines 110kV Rural Grid Renovation Project

A local Philippine power engineering contractor cooperated with us for rural grid upgrading, placing an order for 320 sets of 110kV customized galvanized angle steel transmission tower. Considering the local tropical high-temperature, rainy and high-salt climate, we optimized the galvanized layer thickness and upgraded the overall wind-resistant structure. All towers passed local power department acceptance after delivery. The whole project was finished and put into operation on schedule, greatly improving local power supply stability. The client finally signed a yearly long-term procurement framework agreement with our factory.

Specifications

Maotong Company Strength

Maotong Power operates as a world-leading tower structure solutions provider, focusing on R&D and manufacturing of galvanized angle steel transmission tower, communication towers, and new energy support structures. The company has accumulated 25 patents covering core areas including tower structural design.

Annual production capacity exceeds 60,000 tons of transmission towers, serving leading clients including State Grid and China Southern Power Grid. A patented "Positioning Device for Tubular Steel Structure Processing" has increased production efficiency by 20%, reducing single-piece processing time to 15 minutes while lowering manual intervention risks by over 50%.

Every product undergoes rigorous inspection throughout the production process—from steel cutting to galvanizing. Our quality control system is fully traceable, and we welcome customer factory inspections. On-site inspection records confirm that random thickness and hardness tests consistently meet standards.

Global Reach

With reliable product quality and responsive after-sales service, Maotong Power serves clients across 30+ provinces in China and exports to Australia, the Americas, Europe, Africa, and Asia, including countries along the Belt and Road Initiative. We have maintained a strong track record in State Grid and China Southern Power Grid tenders for years, and have established a leading position in ultra-high-voltage transmission line towers.

Hot-Dip Galvanizing Process

Hot-dip galvanizing is the industry-standard corrosion protection for transmission towers. The process begins with acid pickling to remove mill scale and rust from the steel surface, followed by water rinsing to eliminate acid residues. The cleaned angle steel is then dipped into a flux solution, preheated to 85–125°C, and immersed in a molten zinc bath at approximately 435–436°C.

During immersion, the zinc metallurgically bonds with the steel, forming a uniform, dense coating layer typically 30–86 microns thick depending on steel thickness. The coated components are then water-cooled, passivated in a chromium-free solution, and finished to remove any zinc spurs or ash. This process delivers corrosion resistance that extends service life to over 50 years, even in aggressive atmospheric conditions.

FAQ

Q1: What materials are used for galvanized angle steel transmission tower?

A1: We use Q235B/A36 and Q355B/A572 grade carbon structural steel. Full material inspection reports are provided with every shipment.

Q2: Can you customize tower dimensions and design?

A2: Yes. We provide full design customization based on your project requirements—including height, voltage rating, structural type, wind load specifications, and site conditions.

Q3: What after-sales support can you offer?

A3: We provide long-term quality warranty and professional technical support. For quality problems caused by our factory production, we offer free replacement and remedial solutions.