Product Description
BATCH HOT DIP GALVANIZING LINE
High-Performance Solution for Power Transmission Towers & Substation Structures
Product Overview

Our Batch Hot Dip Galvanizing (HDG) Line is specifically engineered for the heavy-duty requirements of the power industry. It provides superior corrosion protection for lattice towers, steel poles, and cross-arms. Designed to handle large-scale structural steel, this production line ensures a thick, uniform zinc coating that meets international quality standards including ASTM A123, ISO 1461, and AS/NZS 4680.
Industry Aliases: Power Tower Galvanizing Plant, Lattice Tower Zinc Coating Line, Structural Steel HDG Production System, Transmission Tower Galvanizing Equipment.
Power transmission tower components (such as angle steel, plates, and cleats) require heavy-duty and long-dimension handling. Below are the standard technical specifications optimized for the tower industry:
ParameterStandard RangeApplications / NotesKettle Dimensions
L: 9m – 15m | W: 1.5m – 2.2m | D: 2.5m – 3.5m
Standard & Extra-long Tower Segments
Annual Capacity
30,000 to 100,000 Tons
Scalable for Medium to Mega Projects
Heating Source
Natural Gas / LPG / High-Speed Burners
Optimized for Thermal Efficiency
Temp. Control
440°C – 460°C (Accuracy ±1°C)
Minimizes Zinc Ash & Dross Formation
Automation Level
PLC Automated / Semi-Automated
Precise lifting and dipping crane control
A complete hot-dip galvanizing production line for power towers consists of advanced pre-treatment, high-efficiency heating, and strict environmental control systems:
Pickling Tanks: Heavy-duty PP/FRP tanks designed to remove rust and scale from structural steel efficiently
Fluxing Station: Optimized flux solution balance to enhance zinc adhesion and minimize "black spots" or dross formation
Enclosed Pre-treatment Room: Fully enclosed layout combined with an acid mist scrubber, ensuring a safe, odor-free workshop environment
HDG Galvanizing Kettle: Fabricated from premium low-carbon, low-silicon steel plate (XAR or equivalent boiler plate) for a significantly extended service life
Furnace & Pulse Burners: High-velocity pulse firing burner system ensures uniform heat distribution, preventing localized overheating of the kettle
Automated Heavy-Duty Cranes: Specialized heavy cranes programmed for large-angle dipping and lifting to achieve optimum zinc drainage on lattice structures
Quenching & Passivation Tanks: Immediate cooling and surface passivation to prevent white rust and maintain a bright appearance
Zinc Fume Enclosure & Filtration: Fully enclosed "smoke-collecting" hood that captures up to 99% of zinc fumes during the dipping process, filtered through a pulse jet bag filter system
Optimized for Tower Geometry: Engineered lifting and dipping angles drastically reduce zinc consumption and eliminate zinc "icicles" on angle steel joints
Outstanding Thermal Efficiency: Intelligent furnace pressure control and high-density lining cut fuel consumption by 10% to 15% compared to traditional plants
Global Turnkey Project Delivery: Full-lifecycle capability including plant layout design, custom equipment manufacturing, on-site installation, commissioning, and professional process training
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Q: What is the ideal kettle size for a transmission tower galvanizing line?A: For standard lattice towers, a kettle length of 12 to 14 meters, a width of 1.6 to 1.8 meters, and a depth of 3 meters is the industry standard, allowing flexible double-dipping for extra-long tower segments
Q: Does your galvanizing equipment comply with global environmental regulations?A: Yes, all our HDG lines feature fully enclosed pre-treatment rooms and advanced pulse bag filter systems to meet the strictest international environmental and emission standards