Q:How to choose outer packaging materials?
A:Wooden box/plywood box: suitable for precious or large-sized galvanized sheets (such as automobile outer sheet coils), the box thickness is ≥12mm, the interior is padded with moisture-proof paper, and the box corners are reinforced with metal corner guards. It has strong impact resistance and is suitable for long-distance transportation or sea transportation.
Strapped carton: five-layer corrugated carton is used, and the outside is strapped with galvanized steel straps (thickness ≥0.5mm) horizontally + vertically, which increases the pressure bearing capacity by more than 30%, and is suitable for road transportation of small and medium-sized plates.
Metal pallet/plastic pallet: replaces traditional wooden pallets, is corrosion-resistant, has uniform load-bearing (metal pallets can bear more than 2 tons), and is equipped with anti-slip pads to prevent sliding friction of plates.
Q:What should I pay attention to inside the packaging?
A:Foam edge/corner guard: Polyethylene (EPE) foam corner guards are installed on the edges and diagonal positions of the plate, with a thickness of ≥50mm, to absorb the impact of collisions, especially to protect the vulnerable plate edges and ends of the coils.
Air cushion film/honeycomb paper cushioning: The surface of the plate is covered with air cushion film (bubble diameter ≥10mm) or honeycomb paper to fill the gaps in the package and reduce the friction of the plate displacement caused by transportation vibration.
Vacuum blister packaging: For galvanized plates used for precision stamping parts (such as door panels and fender blanks), customized blister trays are used to fix them, and individual plates are independently positioned to avoid collisions.
Q:How to choose the means of transportation
A:Flatbed trailer/van: Vans are preferred for long-distance transportation to avoid open-air transportation; 10mm thick rubber pads or wooden pads are laid on the bottom of the car to reduce road bumps and impacts.
Container reinforcement: When transporting by sea or rail, the galvanized sheet packaging needs to be connected to the fastening points on the container side wall with steel wire ropes or nylon belts, and a fixed point is set every 2 meters to prevent lateral shaking.
Q:What should I pay attention to during pre-shipment inspection?
A:Package appearance inspection: confirm that there is no damage, the strapping is not loose, and the markings are clear (such as "center of gravity position" and "no rolling").
Simulated vibration test: For new packaging solutions, the vibration table can be used to simulate transportation conditions (frequency 5~50Hz, amplitude 2mm, lasting 2 hours) to verify the internal board fixing effect.
Q:How to protect during transportation?
A:Use intelligent monitoring equipment: Place a vibration sensor (such as a triaxial accelerometer) in the package. When the vibration peak exceeds the set threshold (such as 10g), an automatic alarm will be sounded, prompting you to adjust the transportation route or reinforce it.
Multi-stage transportation handover inspection: Perform random inspections on packaging integrity at transshipment nodes (such as ports and logistics centers). If loose bundling is found, it will be immediately re-bundled, and damaged packaging needs to be re-sealed.