The stability of the stack determines the safety of the entire storage system. This requires adhering to strict physical principles and operational details.
1. The “Golden Rule” of Stacking Sequence:
Heavy at Bottom, Light on Top / Large at Bottom, Small on Top: Place the heaviest, largest diameter rolls at the bottom. Lighter, smaller rolls go on top. This lowers the overall center of gravity, ensuring innate stack stability.
Stack Uniform Sizes Together: Whenever possible, stack rolls of the same specification (diameter, height, weight) on the same pallet or in the same column to ensure even weight distribution and neat appearance.
2. Brick/Cross-Stacking Pattern:
Similar to bricklaying, upper-layer rolls should be placed across the seams between two lower-layer rolls. This “interlocked” pattern effectively locks the entire stack together, prevents rolling, and distributes vertical pressure more evenly downwards, significantly enhancing stability.
3. Essential Reinforcement Measures:
Stretch Wrap Securing: For stacks exceeding 2 layers or intended for long-term storage, wrapping the entire stack with industrial stretch film is highly recommended. It “bundles” multiple independent rolls into a single, stable unit, effectively resisting external impacts and potential rolling.
Guardrails and Stanchions: Install protective rails or posts at the ends of racking aisles or corners of free-standing stacks to prevent accidental impacts from forklifts or other equipment.
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