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Piece Tinplate Cans for Bulk Corn & Bean Storage

2025-07-30

A top 5 agricultural product enterprise (annual bulk grain turnover exceeding 200,000 tons) required packaging for 2 core bulk products:

Bulk non-GMO corn (for food processing): 50kg per unit, to be transported to 12 regional processing plants;
Dried kidney beans & black beans (wholesale to chain restaurants/supermarkets): 25kg per unit, with a 6-month storage cycle before distribution.

Their key demands were: 1) 1-ton stackable capacity for warehouse storage; 2) 0 damage rate during cross-provincial truck transportation; 3) 8-month anti-mildew/insect protection for bulk grains.

To address these needs, we customized a heavy-duty 3-piece tinplate can solution with 4 targeted optimizations:

Capacity & structural flexibility: The 3-piece tinplate structure allowed us to adjust dimensions for each product:
- Corn cans: 300mm diameter × 600mm height (50kg capacity), reinforced with 0.3mm thick tinplate (1.2x thicker than standard cans);
- Bean cans: 250mm diameter × 450mm height (25kg capacity) — both sizes maintain structural stability (stackable up to 12 layers, bearing 1.2 tons of vertical pressure) and avoid deformation during long-distance (1,500km+) truck transportation (tested damage rate <0.01%).
Long-term storage protection: The cans adopted a double-seam airtight design (compliant with FDA 21 CFR 175.300 food hygiene standards) — the internal oxygen residual rate was controlled below 0.5%, and the moisture penetration rate <0.1g/month. This created a dry, oxygen-free environment, effectively preventing bulk corn/beans from mildewing (mold growth rate 0 in 8 months) and insect infestation (no pest activity detected in 12-month storage tests).
Green recyclability: Made of 100% food-grade tinplate (recyclable rate ≥95%), the cans can be collected by the enterprise’s downstream partners (restaurants/supermarkets) and sent to certified recycling facilities — each recycled can reduces 1.2kg of plastic packaging waste, aligning with the enterprise’s "carbon-neutral supply chain" initiative (helping them cut packaging carbon emissions by 18% annually).

Round Tin Cans

Rectangular Tin Cans

Two Piece Can

Three Piece Can

Food Grade Metal Can

Pressurized Aerosol Can

Torch Can

Round Tin Cans

Rectangular Tin Cans

Two Piece Can

Three Piece Can

Food Grade Metal Can

Pressurized Aerosol Can

Torch Can

Solutions Details

Piece Tinplate Cans for Bulk Corn & Bean Storage

Piece Tinplate Cans for Bulk Corn & Bean Storage