Views: 0 Author: Site Editor Publish Time: 2025-07-03 Origin: Site
In the modern packaging industry, aluminum beverage cans have become the mainstream choice in the FMCG (Fast-Moving Consumer Goods) market, valued for their lightweight design, high recyclability, and excellent sealing performance. As the core component of beverage cans, the design and functionality of lids directly impact product safety, portability, and brand experience. Hiuer specializes in aluminum can manufacturing, dedicated to researching the technical characteristics and application scenarios of different types of aluminum can lids, providing professional packaging solutions for clients.
1. Classic Ring Pull Tab (RPT) Lids: Mature Technology, Economic Choice
RPT (Ring Pull Tab) lids have long dominated the mass beverage market due to their convenient opening mechanism. Through precision riveting technology, the integral pull tab is tightly connected to the can body, allowing users to open it with a light pull, requiring an operation force ≤30N, which conforms to ergonomic design. The mature stamping production process reduces the unit manufacturing cost by 15%-20% compared to other types, making it suitable for cost-sensitive mass products such as carbonated drinks and beer.
However, this design faces dual challenges in environmental protection and safety: detachable pull tabs easily cause metal pollution—statistics show that approximately 800,000 tons of pull tab waste are generated globally each year. Meanwhile, sharp edges may lead to accidental cuts for 0.3% of users. Therefore, in markets with stricter environmental regulations, RPT lids are gradually transitioning to eco-friendly designs.
2. Eco-friendly SOT Lids: Green Upgrade, Compliance-oriented Choice
SOT (Stay-On-Tab) eco-lids achieve permanent connection between the pull tab and the lid through innovative rivet fixing technology, with a post-opening retention rate of 99.9%, effectively reducing metal waste emissions. This design has obtained certification under the EU Packaging Waste Directive (94/62/EC), with a penetration rate exceeding 75% in the European and American markets.
Compared with RPT lids, SOT lids require an opening force of 40-50N. By optimizing the arc and thickness of the pull tab, they balance user experience while ensuring environmental performance. Suitable for mid-to-high-end beverages such as tea drinks and fruit juices that emphasize brand social responsibility, they can effectively enhance brand ESG scores.
3. Easy-Open Lid (EOL): Premium Sealing, Quality-oriented Choice
EOL (Easy-Open Lid) adopts aluminum foil composite film and laser scoring technology to achieve non-destructive opening and excellent sealing. Its oxygen transmission rate ≤0.01cm³/m²/24h and UV light blocking rate of 99% can significantly extend the shelf life of light- and oxygen-sensitive products such as coffee and energy drinks.
Through heat-sealing technology, multi-layer composite films (PET/AL/PE) are combined with aluminum substrates, ensuring precise separation along pre-set scores during opening. However, improper operation may lead to a 0.5% aluminum foil residue rate. This solution costs 30%-40% more than traditional lids, suitable for high-end functional beverages and premium alcoholic drinks.
4. Screw-On Lids: Functional Innovation, Scenario-oriented Choice
Screw-on lids feature an M32×1.5 standard thread design, processed by high-precision molds (±0.05mm tolerance), enabling repeatable sealing with a test pressure up to 1.2 bar. The unique tamper-evident ring design allows intuitive judgment of product opening through fracture marks, effectively enhancing product safety.
Suitable for scenarios requiring multiple servings, such as sports drinks and children's beverages, market research shows that products with screw-on lids have a 22% higher repurchase rate. However, the complex structure extends the production cycle by 2-3 days and increases comprehensive costs by 25%, requiring rational selection based on product positioning.
Industry Trends and Custom Services
Currently, aluminum can lids are trending in three directions: environmental sustainability (annual growth of 18% in recycled material application), functional innovation (emergence of intelligent monitoring lids), and lightweight design (12% weight reduction per lid by thinning 0.03mm). With over 20 years of industry experience, Hiuer is equipped with multiple high-speed stamping production lines and full-automatic testing equipment, providing one-stop services from conceptual design and mold development to mass production delivery.
Our products are certified by ISO 9001 Quality Management System and FDA food contact materials, supporting full-category customization of RPT, SOT, EOL, screw-on lids, etc., with a daily production capacity of 2 million pieces. Whether for standardized product needs or personalized packaging solutions, please contact our professional team via admin@hiuierpack.com or +8615318828821 to jointly create aluminum packaging products that balance functionality and commercial value.
