Dead End Four Leg Tower

The Dead End Four Leg Tower is a pipe tower type that withstands horizontal conductor tension in transmission lines. It is installed at the ends of strain sections. It bears the full mechanical tension of the entire line section. Compared with traditional angle steel dead‑end towers, this four‑leg pipe tower has lower wind drag and a more compact structure. These features give it clear advantages in windy coastal areas and urban peripheral lines. Qingdao Hongyuanfeng Power Equipment Co., Ltd. manufactures Dead End Four Leg Towers using Q355B high‑strength steel pipes. Wall thickness is calculated per horizontal tension and thickened accordingly. The tower uses flanged bolt connections throughout. The entire tower receives hot‑dip galvanizing with a zinc coating of at least 86μm. This meets GB/T 2694‑2018 national standards. Each tower is equipped with strain insulator strings and jumper systems. When a line break occurs, this tower limits the fault to the section between two Dead End Four Leg Towers. This stops the fault from spreading further.

Our Dead End Four Leg Towers range from 20 meters to 50 meters in height. They cover voltage levels from 110kV to ±1100kV. The maximum horizontal tension design value ranges from 50kN to 150kN. Maximum wind speed capacity is 35 m/s, and earthquake resistance is grade 8. The nominal height is customizable per terrain conditions. The horizontal span is typically 250 meters to 550 meters. The main material is Q355B high‑strength steel pipe. All components are assembled with flanged connections for fast on‑site installation. Standard delivery takes 15‑20 days. Our production facility includes 6 sets of 1250A automatic submerged arc welders and 4 large laser cutting machines. Monthly production capacity for pipe towers is 1,000‑1,500 tons.

Qingdao Hongyuanfeng Power Equipment Co., Ltd. started operations in 2019. Our factory is located in Beiguan Industrial Park, Jiaozhou, Qingdao. The facility covers 151 mu and employs approximately 120 workers. We hold 14 patents, 2 registered trademarks, and 3 administrative licenses. We have passed quality management, environmental management, and occupational health and safety certifications. We are recognized as a "High‑tech Enterprise" and a "Qingdao Specialized and Sophisticated SME". Our certified quality inspectors monitor every batch from raw material arrival to finished product shipping. We strictly follow GB/T 2694‑2018 throughout production. We perform 100% inspection before packing and accept third‑party inspections. Our strong production scheduling system ensures timely delivery. We coordinate production, quality control, packing, and shipping in one unified plan.

Our Dead End Four Leg Towers have been used in many provincial power grid projects across China. In coastal areas with strong winds, these towers effectively reduce wind load effects due to their low drag and compact structure. We supplied towers for the Jiuquan 500kV DC project and the Qinghai‑Shandong 500kV DC project. Our products have proven reliable through years of operation. The Dead End Four Leg Tower solves the problem of handling high line tension in areas with limited land and strict landscape requirements. We provide complete export technical documentation and project support. We produce according to customer technical drawings with a minimum order of 10 tons. Custom sample development for large items takes 7‑10 days.

Hongyuanfeng provides complete service. Before the sale, our technical team connects with customers. We study project conditions, provide planning, and handle drawing discussions. We provide reasonable quotes and support tender technical queries. During production, we share real‑time progress updates. We coordinate loading, shipping, and logistics. We communicate installation conditions in advance. After the sale, we offer a 2‑year warranty. We can send technicians to guide on‑site installation and solve technical issues. We also conduct regular follow‑up visits.