I. Packaging and Isolation (Core Link)
This is the key to preventing direct contact between the glass sheets and between the glass and the packaging/vehicle compartment.
Inter-film isolation
Specialized glass spacer paper (corrugated paper/foamed PE pad) : Insert specialized pad paper with cushioning and anti-slip properties between each piece of glass. This is the most fundamental and necessary measure, which can effectively prevent direct friction between the glass.
Corner protectors (corner guards) : Use thickened paper or plastic corner guards at the four corners of the glass to protect the most vulnerable parts.
Anti-slip gaskets (EVA/ rubber gaskets) : For heavy or large glass, gaskets with high friction coefficients can be used to prevent relative displacement.
Overall wrapping and edge protection
Comprehensive winding protective film: Use high-strength stretch film or air cushion film to tightly wrap the entire box of glass, fix the internal isolation material, and form the first dust-proof and moisture-proof barrier.
Thickened edge protection: In addition to corner guards, the entire edge of the glass is wrapped with U-shaped edge guards or thickened foam strips.
Use dedicated glass packaging boxes (wooden crates/iron frames) : For high-value or irregular-shaped glass, custom-made sturdy wooden crates or metal frames should be used. The glass should be fixed inside with foam molds to keep it suspended or fully in place.
Ii. Loading and Fixing (Ensuring Stability)
Unstable goods are the root cause of friction and collision during transportation.
Carriage preparation
Clean the carriage: Ensure that there are no hard debris such as sand, stones, and metal shavings inside the carriage.
Lay a buffer layer: Lay a flat blanket, rubber pad or thick foam board on the floor of the carriage.
Scientific placement
Stand upright. Do not place horizontally or at an Angle. This is the golden rule for transporting tempered glass. When placed flat, the weight and vibration can cause the lower part of the glass in the entire stack to break due to pressure, and the friction between the pieces will increase.
Use A-shaped racks or vertical shelves: Insert the glass vertically into the dedicated A-shaped rack and fix the rack body with soft straps (nylon straps). The glass should be parallel to the forward direction of the carriage to reduce the inertial force during sudden braking.
Fill the gaps: Any gaps between the glass and the brackets, as well as the walls of the carriage, must be tightly filled with foam blocks, wood, etc., to prevent shaking.
Fastening measures:
Use appropriate strapping bands: Secure with wide nylon strapping bands or steel wire ropes with soft sheaths. It is strictly forbidden to directly contact the glass with unprotected metal chains or steel wire ropes.
Multi-point flexible fixation: When binding, thick foam or rubber blocks should be placed at the contact point between the glass and the binding strap. The fixed points should be evenly distributed and neither too tight nor too loose (with the principle of being firmly fixed and not causing excessive force on the glass).
Iii. Transportation and Operation Process Management
Smooth driving: Drivers should maintain smooth driving and avoid sudden braking, sharp turns and severe jolts.
Clear markings: Clearly mark on the outer packaging of the goods such as "Handle with care", "Fragile", "Do not roll", "↑ upward", etc., to remind all handlers.
Standardized loading and unloading
Use professional tools such as suction cup machines for handling to avoid direct manual grasping of the edges.
When loading and unloading, lift and place gently. Dragging and throwing are strictly prohibited.
Check whether the suction cup is clean and free of sand particles to prevent spot crush injuries.
Iv. Strengthening Measures for Special Glass
Coated /LOW-E glass: The coated surface is particularly delicate. When packaging, make sure that the film surfaces are separated by super soft acid-free release paper, and usually place the film surfaces inward. Sometimes, individual pieces need to be packaged independently.
Extra-large and extra-heavy glass: Customized reinforced wooden crates or metal containers must be used, with the interior supported and fixed by three-dimensional foam or wooden structures.
Irregular-shaped glass: It is necessary to make a foam or sponge inner lining mold that exactly matches the shape of the glass for fixation.
Summary of key points list
Essential isolation materials: inter-sheet pad paper, corner protectors, and stretch film.
Correct placement method: Stand upright and use an A-shaped rack.
Improve buffer protection: Lay soft pads in the carriages and add soft pads at the contact points.
Firm and flexible fixation: Use nylon straps to prevent direct metal contact and fill all gaps.
Meticulous operation throughout the process: from loading onto the vehicle, transportation to unloading, maintaining stability and no shaking.
Through the above-mentioned multi-layer protection and standardized operation, the risks of friction, scratches and breakage of tempered glass during transportation can be minimized to the greatest extent, ensuring its safe and intact delivery to customers.
