When loading heavy goods into a warehouse cage, the most dangerous thing is not loading too much but loading off-center. A cargo center of gravity shifted away from the cage center, or force concentrated on one side, makes the stack prone to tipping and causes swaying and tilting during forklift handling—a top cause of workshop accidents.
There are three basic loading rules: put heavy goods at the bottom and light goods on top; place large items near the center and fill around with small ones; keep the cargo height below the top edge of the cage opening, generally within 80% of the cage height. This lowers the overall center of gravity and gives the best stability.
How to judge off-center load risk? The projection of the cargo center of gravity onto the cage floor should fall within the central one-third area, with lateral offset no more than 100mm. If long bars or eccentric parts must be loaded, add baffles or liners inside the cage to re-center the load; never let the cargo lean against one side of the mesh.
Off-center loads are amplified once stacked: the offset of an upper level presses directly onto one side of the lower cage's stacking feet, and over time the posts bend, the feet sink, and the whole stack may tilt. That is why the center of gravity must be corrected at every level during loading, not just checked at the bottom.
Practical tip: weigh heavy goods before loading and keep the total per cage within 90% of the rated load; when forklifting, lift 100mm first, pause to check balance, and move only if there is no tilt. Nanjing Tongnuo supports custom baffles and dividers inside the cage to handle eccentric parts and long-bar turnover.