200-Ton Electric Heating Hot-Dip Galvanizing Line | 6.7 t/h Capacity | Eco-Friendly Solution for Steel Components

WUXI WONDERY INDUSTRY EQUIPMENT CO., LTD. presents its Electric Heating Linear Environmentally Friendly Hot-Dip Galvanizing Production Line, a modern solution for high-efficiency galvanizing of steel components. This electric hot-dip galvanizing line is ideal for manufacturers seeking a clean energy galvanizing furnace with precise temperature control, low emissions, and consistent output.

The core of this galvanizing production line is a large-capacity zinc pot with internal dimensions of 11m (L) × 1.5m (W) × 2.0m (H) , holding 200 tons of zinc. It achieves a maximum hourly capacity of 6.7 tons, suitable for continuous industrial operation. Unlike gas-fired systems, this electric galvanizing furnace uses 1200 kW of electric heating (expandable to 1500 kW with flux tank heating), eliminating on-site combustion and reducing greenhouse gas emissions.

Key environmentally friendly galvanizing features include:

• An enclosed acid mist treatment room with negative pressure to prevent acid gas leakage.

• A dual-stage acid fume exhaust system (scrubber tower + neutralization tower) with automatic pH control.

• A zinc fume collection system with double-sided suction, bag filter, and water curtain deodorization (110 kW variable frequency).

• Electric heating for the drying tank and fluxing tank, ensuring clean, controllable heat without flue gas.

The line incorporates advanced electric heating control technology, including:

• 18 plate-type heating elements (67 kW each) distributed on both sides and ends of the zinc pot.

• Taiwan Taie SCR zero-position power controllers with soft start function to avoid current surges.

• PID temperature controllers maintaining zinc bath temperature at 438–450°C with ±1°C accuracy.

• A 10-inch touchscreen for real-time monitoring of temperature, power consumption, and three-phase current balance.

Additional features include an online weighing system, fully automatic ferric acid removal equipment for the flux solution, and optional waste acid regeneration equipment (sulfuric acid method) enabling zero-emission recycling of hydrochloric acid.

Total electrical power consumption is approximately 2012 kW. The buyer is responsible for civil works, power supply to control cabinets, and compressed air supply. WUXI WONDERY INDUSTRY EQUIPMENT CO., LTD. provides installation guidance, training materials, and full documentation.

For a zero-emission electric galvanizing line that delivers energy efficiency, environmental compliance, and high throughput, this system is a complete, future-proof solution.

Industry Challenges & Causes

Problem: High Carbon Emissions & Flue Gas. Traditional gas furnaces produce significant $CO_2$ and $NO_x$, making it difficult to meet 2026 environmental compliance.

Cause: Uncontrolled Combustion. Fossil fuel heating lacks the precision required for modern environmental permits.

Problem: Zinc Bath Temperature Fluctuations. Temperature swings lead to uneven coating thickness and excessive zinc dross.

Technical Parameters Table

FAQ

• Q: How does this system handle acid mist?

  A: We use an enclosed acid mist room with negative pressure and a dual-stage scrubber (scrubber + neutralization tower) with automatic pH control.

• Q: Is the heating element replacement difficult?

  A: No, we use 18 independent plate-type heating wires. Individual plates can be maintained without shutting down the entire line.

• Q: Can it be expanded for higher capacity?

  A: Yes, the heating system is expandable to 1500 kW to support faster flux tank heating and increased throughput.