Coil Coating Lines Carbon Coils Continuous Hot-dip Galvanizing Line Wholesale - HiTo Engineering
Product Overview
1) Product overview
Product Features
- HiTo Engineering’s Coil Coating Lines — Continuous Hot‑dip Galvanizing (Carbon Coils) is an integrated production line for coating cold‑rolled low‑carbon steel strip (SPCC/SPCD, JIS G3141) with zinc or aluminum‑based alloys (GI, GA, GF).
Product Value
- Key specs: strip thickness 0.12–2.5 mm, width 700–1550 mm, coating weight 30–300 g/m2, product grades CQ/DQ/G550 (JIS G3302). Line speeds: entry/exit up to 260 m/min, processing up to 200 m/min. Annual capacity range: ~60,000–300,000 MT/Y.
Product Advantages
- Main equipment: uncoiler, welder, storage tank, degreasing/cleaning section, continuous annealing furnace, zinc pot, air knife, skin pass, tension leveler, oiler, shear, recoiler and finishing/straightening units.
Application Scenarios
2) Product features
- Flexible cleaning options including high‑efficiency electrolytic cleaning and combined horizontal/vertical spray modes to improve cleaning efficiency and reduce secondary contamination.
- Combined non‑oxidizing (NOF) and radiant tube heating (RTH) for fast, efficient annealing with precise air‑fuel control and durable insulation materials.
- Protective‑gas cycling spray cooling with variable‑frequency control for rapid, uniform cooling and accurate temperature control before galvanizing.
- Jet‑type ceramic induction heating zinc pot, wet nitrogen furnace nose and circulating zinc pump for uniform alloying, reduced slag and improved surface precision.
- Real‑time coating thickness measurement and air‑knife control, fingerprint‑resistant coating module with fast switching, straightening/finishing units to improve surface/shape quality.
- Advanced automation: vector frequency drives, CPC/EPC correction, field‑bus control, user‑friendly HMI (English), customizable configurations.
3) Product value
- Produces high‑quality, uniform galvanized/galvalume coils meeting modern surface, coating and mechanical property requirements — suitable for demanding end‑uses (e.g., home appliances).
- Energy and cost savings from flue gas waste heat recovery (flue‑gas‑to‑water or waste‑heat steam boiler) and efficient heating systems, lowering operating expenses and improving sustainability.
- Real‑time monitoring and precise process control reduce scrap/rework and improve yield.
- Tailor‑made solutions and global‑level technology at competitive pricing, backed by ongoing specialist support — shorter time‑to‑market for customers.
4) Product advantages
- State‑of‑the‑art, internationally competitive engineering with strong after‑sales and technical support.
- High automation and process precision (thickness monitoring, air‑knife control, CPC/EPC) for consistent coating quality.
- Robust, long‑life components (ceramic induction zinc pot, special refractory materials) minimize maintenance and slag formation.
- Low environmental impact cleaning and efficient heat recovery reduce pollution and energy consumption.
- Flexible, customizable line configurations and English software/HMI for easy integration into international operations.
5) Application scenarios
- Manufacturing of galvanized and galvalume coils for roofing, cladding, building materials and construction panels.
- Production of coated steel for home appliances, electrical cabinets and furniture requiring high surface quality.
- Suppliers and service centers for light‑gauge steel, HVAC components, and general metal fabrication needing coated coils.
- Steel mills or coil processing plants seeking medium to large annual throughput (60k–300k MT/Y) and energy‑efficient continuous galvanizing capability.