1.What are the basic packaging requirements?
Use highly waterproof packaging materials, such as polyethylene film (PE), to fully wrap the coil. Ensure the film is intact and the edges are tightly sealed to prevent rain and dew from seeping in.
Add cardboard or metal retaining rings at both ends of the coil core to prevent deformation and foreign matter from entering during transport.
Secure the coil with steel strapping or high-strength strapping to prevent loosening and rolling during transport. Use soft cushioning material (such as rubber pads) where the strapping tape contacts the coil to prevent surface damage.
2.How to strengthen packaging in special scenarios?
For use in rainy areas or when shipping by sea, cover the PE film with a layer of rainproof cloth for double waterproofing. For long-term storage of galvanized coils, place a desiccant (such as silica gel) inside the packaging to absorb residual moisture.
For galvanized coils with high surface requirements (such as those used in home appliances), place kraft paper or plastic film between the coil layers to reduce damage to the zinc layer caused by friction between the layers.
3.How to choose the mode of transportation?
Prefer closed trucks or containers for transportation, and avoid open-air transportation (to protect from sun, rain, and dust). If open-air transportation is necessary, cover with thickened rainproof cloth and secure with ropes. During short-distance transportation, avoid sudden acceleration and braking to reduce collision and friction between steel coils.
4.What are the loading specifications?
Steel coils should be placed upright (with the core perpendicular to the ground) with a wooden pallet or rubber mat underneath to prevent slipping. Horizontal placement (which can easily cause the coil to deform) or excessive stacking (generally no more than three layers to prevent compression and deformation of the lower layers) is prohibited.
Steel coils of different specifications and surface qualities should be loaded separately to prevent sharp edges from rubbing against each other. After loading, secure the coils with baffles or ropes to ensure they do not shift during transport.
5.What are the storage space requirements?
Choose a well-ventilated, dry indoor warehouse and avoid open-air storage (to prevent direct erosion from rain and dew). The warehouse floor should be level and hardened, and covered with a moisture-proof layer (such as plastic film or asphalt) to prevent ground moisture from penetrating.
Install a thermometer and hygrometer in the warehouse to maintain relative humidity below 60%. During the rainy season or in high-humidity environments, use a dehumidifier to reduce humidity to prevent zinc oxidation and white rust.