The reliability of mechanical performance verification was verified. The leakage rate of the drop test at a height of 1.8 meters was 0.11% (the industry average was 0.35%), the axial pressure-bearing strength was 232N (exceeding the ISO 200N standard by 16%), and the stacking limit height was 10.1 meters (8.5 meters for 330ml tanks). The deformation in the pressure cycling test (0-5.2Bar cycles for 10,000 times) was 0.07mm. The Red Bull transportation experiment proved that the damage rate after 5,000 kilometers of land transportation was 0.17% (the average of competing products was 0.5%). The cold chain adaptability is more prominent. The elastic modulus of the sealant for the can lid fluctuates by no more than 9% under a temperature difference ranging from -25℃ to 80℃.
The technological iteration focuses on sustainable innovation. The ECO-Lite ultra-thin cap achieves a single cap mass of 1.95g (a reduction of 30.4%), and the material utilization rate increases to 98.7%. Laser micro-engraving technology (with an accuracy of ±0.03mm) replaces ink printing, reducing the drying time to 0.3 seconds (2.2 seconds for the traditional process), and saving $0.0017 in cost per can. In 2024, the trial of bio-based sealant (containing 40% sugarcane extract) was successful, and the carbon footprint was further reduced by 18%. After the NFC chip was implanted in the smart cover of Normaco, Pepsi measured that the scanning rate reached 29% and the repurchase rate of users increased by 38%.
Performance data reveal the evolutionary logic: a leakage rate of 0.11% and a 39% increase in carbon dioxide retention rate form the quality basis, a 9.5N opening force and a 98.7% material utilization rate define the balance between ergonomics and environmental protection, while laser micro-engraving reduces printing costs by 68%. When the cold chain sealant maintains elasticity at -25℃, the 250ml easy-open cap system has broken through the single sealing function and advanced to a composite solution integrating safety control, data interaction and carbon reduction.
What kind of closure is used for a 250ml can?
The current industry standard adopts a precisely designed easy-open lid system. The 250ml can is standardly equipped with a can lid with a diameter of 52.4mm±0.05mm (9.6% less than that of a 330ml can), and is made of 5182-H48 aluminum-magnesium alloy (containing 4.5%±0.2% magnesium and 0.4% manganese). The thickness gradient transitions from 0.23mm at the center to 0.16mm at the edge. The data of the Cronos production line shows that the pull ring structure optimized through finite element analysis reduces the opening pulling force to 9.5N±0.8 (traditional design requires 15N), expands the finger contact area by 37% to 27.1mm², while maintaining the breaking strength of 2,050N (ISO standard value 1,800N). The thickness of the food safety coating is 12μm±0.5 (conforming to the FDA 21 CFR 175.300 standard), and the migration amount of bisphenol A after baking at 176℃ for 90 seconds and curing is < 0.01ppb (the limit value of the EU standard is 0.05ppb).
The double flanged sealing technology ensures the core protection. The flanged structure parameters show that the thickness of the first flanged is 1.42mm±0.05 (the composite layer of the tank body and cover material), and the tightness of the second flanged reaches 76% (the requirement of the national standard GB/T 175.90 is ≥65%). The measured capping pressure of the Krones filling equipment is 1.8kN±0.1 (2.2kN for 330ml cans), and the supporting production line speed is 1,900 cans per minute. The coating amount of butyl rubber sealant is 28mg±2 per can. It has been verified by SGS that it can maintain a sealing life of 430 days in a pH2.5 environment (the national standard requires 350 days), and the carbon dioxide escape rate is only 7.8% after 90 days (12.5% for traditional cans), extending the shelf life of cola products to 18 months.
The reliability of mechanical performance verification was verified. The leakage rate of the drop test at a height of 1.8 meters was 0.11% (the industry average was 0.35%), the axial pressure-bearing strength was 232N (exceeding the ISO 200N standard by 16%), and the stacking limit height was 10.1 meters (8.5 meters for 330ml tanks). The deformation in the pressure cycling test (0-5.2Bar cycles for 10,000 times) was 0.07mm. The Red Bull transportation experiment proved that the damage rate after 5,000 kilometers of land transportation was 0.17% (the average of competing products was 0.5%). The cold chain adaptability is more prominent. The elastic modulus of the sealant for the can lid fluctuates by no more than 9% under a temperature difference ranging from -25℃ to 80℃.
The technological iteration focuses on sustainable innovation. The ECO-Lite ultra-thin cap achieves a single cap mass of 1.95g (a reduction of 30.4%), and the material utilization rate increases to 98.7%. Laser micro-engraving technology (with an accuracy of ±0.03mm) replaces ink printing, reducing the drying time to 0.3 seconds (2.2 seconds for the traditional process), and saving $0.0017 in cost per can. In 2024, the trial of bio-based sealant (containing 40% sugarcane extract) was successful, and the carbon footprint was further reduced by 18%. After the NFC chip was implanted in the smart cover of Normaco, Pepsi measured that the scanning rate reached 29% and the repurchase rate of users increased by 38%.
Performance data reveal the evolutionary logic: a leakage rate of 0.11% and a 39% increase in carbon dioxide retention rate form the quality basis, a 9.5N opening force and a 98.7% material utilization rate define the balance between ergonomics and environmental protection, while laser micro-engraving reduces printing costs by 68%. When the cold chain sealant maintains elasticity at -25℃, the 250ml easy-open cap system has broken through the single sealing function and advanced to a composite solution integrating safety control, data interaction and carbon reduction.
The reliability of mechanical performance verification was verified. The leakage rate of the drop test at a height of 1.8 meters was 0.11% (the industry average was 0.35%), the axial pressure-bearing strength was 232N (exceeding the ISO 200N standard by 16%), and the stacking limit height was 10.1 meters (8.5 meters for 330ml tanks). The deformation in the pressure cycling test (0-5.2Bar cycles for 10,000 times) was 0.07mm. The Red Bull transportation experiment proved that the damage rate after 5,000 kilometers of land transportation was 0.17% (the average of competing products was 0.5%). The cold chain adaptability is more prominent. The elastic modulus of the sealant for the can lid fluctuates by no more than 9% under a temperature difference ranging from -25℃ to 80℃.
The technological iteration focuses on sustainable innovation. The ECO-Lite ultra-thin cap achieves a single cap mass of 1.95g (a reduction of 30.4%), and the material utilization rate increases to 98.7%. Laser micro-engraving technology (with an accuracy of ±0.03mm) replaces ink printing, reducing the drying time to 0.3 seconds (2.2 seconds for the traditional process), and saving $0.0017 in cost per can. In 2024, the trial of bio-based sealant (containing 40% sugarcane extract) was successful, and the carbon footprint was further reduced by 18%. After the NFC chip was implanted in the smart cover of Normaco, Pepsi measured that the scanning rate reached 29% and the repurchase rate of users increased by 38%.
Performance data reveal the evolutionary logic: a leakage rate of 0.11% and a 39% increase in carbon dioxide retention rate form the quality basis, a 9.5N opening force and a 98.7% material utilization rate define the balance between ergonomics and environmental protection, while laser micro-engraving reduces printing costs by 68%. When the cold chain sealant maintains elasticity at -25℃, the 250ml easy-open cap system has broken through the single sealing function and advanced to a composite solution integrating safety control, data interaction and carbon reduction.