Galvanized coils must strictly adhere to requirements regarding packaging, loading, securing, moisture protection, and route planning during transportation to ensure product integrity and safe transport.
Packaging Requirements
Galvanized coils should first be wrapped in rust-proof paper, then sealed with plastic film to prevent moisture or rain damage during transport, which could lead to white rust.
Installing inner and outer corner guards and protective plates enhances pressure resistance and impact resistance, preventing coating wear or edge damage.
Outer packaging can use steel straps or plastic strapping to secure the coils firmly, preventing loosening; corrugated cardboard boxes or wooden crates should be used as outer packaging containers when necessary, providing additional protection.
Loading Methods
Horizontal or Longitudinal Loading: When the width-to-outer-diameter ratio of the coil is greater than 0.7, horizontal loading should be used. If the width is less than the vehicle width, horizontal loading should be chosen; if it is greater than or equal to the vehicle width, longitudinal loading should be chosen.
Vertical Loading Restrictions: Only applicable when the width-to-diameter ratio is less than or equal to 0.7, and the bottom support must be stable to prevent rolling or tipping.
According to international standards, narrow steel coils (outer diameter 150~1100mm) with a width-to-diameter ratio greater than 1.0 can also be stacked horizontally.
The bottom edge of the steel coil should be at least 20mm from the bottom plate of the transport vehicle to facilitate forklift operation and reduce bottom friction.
Securing and Binding
Use standard-compliant synthetic fiber strapping, chain binding assemblies, or wire ropes for secure binding.
Wooden pads or support frames should be installed at the bottom and sides to evenly distribute the weight and avoid concentrated stress that could cause beam breakage or deformation.
Transverse support timbers should also be installed inside the shipping container, with vertical pads added between the timbers and the container walls to enhance stability.
The lashing should be able to be tightened again during navigation to ensure effective securing throughout the voyage.
