Product Description
Logistics & Handling System
The material handling system is the backbone of the turnkey Batch Hot-Dip Galvanizing (HDG) plant. It is designed to ensure seamless, safe, and efficient material flow from the black steel receiving area, through chemical pre-treatment and zinc dipping, to the final inspection and dispatch.
The entire system emphasizes high automation, robust load capacity, and anti-corrosion compliance (especially in the acidic pre-treatment zone).
System Architecture & Core Components
A. Loading & Black Storage Area (Pre-Process Logistics)
This area is dedicated to receiving, sorting, and fixtures clamping (jigging) of the steel structures before entering the process line.
Overhead EOT Cranes (Black Steel Handling): Heavy-duty electric overhead traveling cranes equipped with specialized lifting beams for safe unloading and storage.
Jigging / Racking Stations: Dedicated ergonomic stations with adjustable lifting tables where steel parts are securely wired/clamped onto the galvanizing jigs (crossbeams).
B. Fully Automated Chemical Pre-Treatment Logistics (Enclosed Acid Area)
Crucial Zone: High anti-corrosion requirements.
Automated Crane System (Process Cranes): High-speed, heavy-duty overhead hoists with anti-corrosion coatings/polyurethane belts instead of standard steel wire ropes to withstand acid fumes ($HCl$).
Automatic Transfer Trolleym (Shuttle Cars): Fully automated, floor-running or elevated transport shuttles to move loaded crossbeams horizontally between the loading area and the enclosed pretreatment capsule.
Programmed Dipping Control: PLC-controlled variable speed dipping to optimize degreasing, pickling, rinsing, and fluxing times.
C. Galvanizing Furnace Zone (The Zinc Dip Logistics)
Crucial Zone: High temperature, synchronized speed control.
Furnace Dipping Crane (Furnace Hoist): Special heat-resistant lifting mechanisms designed for precise, multi-angle immersion and extraction from the molten zinc bath ($~450^circtext{C}$).
Zinc Spatter Protection Shields: Integrated with the crane/monorail system to protect logisitics equipment from zinc splashes.
Centrifuge Handling System (Optional): Automated spinner/centrifuge logistics line for small parts (bolts, nuts) to remove excess zinc.
D. Post-Treatment, Unloading & Inspection Logistics
Quenching & Passivation Conveyors: Automated chain conveyors or monorail systems that transfer the galvanized steel from the zinc kettle to the water quenching and passivation tanks.
De-jigging (Unracking) Stations: Specialized lifting equipment to safely unclamp finished goods from the crossbeams.
Crossbeam Return Monorail: An independent, high-speed loop system that automatically returns empty crossbeams back to the Loading Area, closing the logistics cycle.
3. Key Logistics Control Features (Automation & Safety)
4. Turnkey Scope of Supply for Logistics
As your turnkey partner, our scope includes:
Engineering & Simulation: 3D material flow simulation to eliminate bottlenecks before manufacturing.
Equipment Manufacturing: Cranes, hoists, transfer carts, jigs, and structural steel tracking systems.
Electrical & Software: Complete PLC programming, HMI interface, and integration with the plant's MES/WMS.
On-site Installation & Commissioning: Full mechanical/electrical setup and cycle-time optimization.