Explore our core catalog of precision-engineered aluminum easy-open ends, standard beverage cans, and lacquered aluminum coils manufactured under ISO9001 and FSSC22000 certifications.
An authoritative analysis of Stay-On Tab (SOT) 202 B64 end geometry, countersink depth, and metallurgical performance under dynamic internal pressure loads.
In the global beverage manufacturing domain, the SOT 202 B64 easy-open end (EOE) represents one of the most widely adopted standard closure profiles for two-piece aluminum cans. Designed specifically for standard 202 neck-diameter cans (nominal diameter 52.5mm), the B64 profile features a optimized countersink wall geometry that balances internal pressure retention with minimal metal weight. Sourcing engineers and beverage brand managers seeking a reliable Wholesale Sot 202 B64 Manufacturer Supplier & Suppliers must evaluate critical parameters such as buckle pressure rating, rivet integrity, score-line feather depth, and internal enamel resistance.
At Shanghai Friend Metals Technology Co., Ltd. (established in 2010), our high-speed stamping operations utilize premium 5182-H48 temper aluminum coil for end shells and 5052-H19 aluminum alloy for tabs. The B64 end configuration is meticulously calibrated to fit high-speed automated seaming machines (such as Ferrum, Angelus, and pneumatically driven counter-pressure seamers) operating at speeds exceeding 1,500 cans per minute without feathering or double-seam micro-fractures.
The table below outlines the exact dimensional tolerances and mechanical parameters of Shanghai Friend Metals' SOT 202 B64 aluminum easy-open lids compared to standard market benchmarks:
| Technical Specification | SOT 202 B64 Standard | SOT 202 CDL Alternative | Quality Tolerance / Testing Standard |
|---|---|---|---|
| Nominal End Diameter | 202 # (52.5 mm / 2-1/16") | 202 # (52.5 mm) | ±0.05 mm (Optical Comparator) |
| Countersink Depth | 1.85 - 2.05 mm | 1.55 - 1.70 mm | ISO 9001 Gauge Verification |
| Shell Base Alloy & Temper | AA5182-H48 / H19 | AA5182-H48 | Mill Cert EN 10204 3.1 |
| Tab Alloy & Design | AA5052 Stay-On Tab (SOT) | AA5052 SOT / Ring Pull | Tensile & Fatigue Tested |
| Internal Coating System | BPA-NI Epoxy / Acrylic / Organosol | BPA-NI Polyester | FDA 21 CFR 175.300 / EU 1935/2004 |
| Enamel Rater Value (Conductivity) | < 0.5 mA (Target < 0.2 mA) | < 0.5 mA | 1% NaCl Solution / 6.3V DC |
| Pasteurization Capability | Tunnel Pasteurization at 68°C / 30 mins | Standard Pasteurization | Zero Delamination / No Blistering |
Why material selection and coating matrix determine product shelf-life and preventing stress corrosion cracking (SCC).
AA5182 aluminum alloy exhibits exceptional work-hardening characteristics due to its 4.0-5.0% magnesium content. Coupled with H48 temper processing, the shell substrate achieves yield strength exceeding 310 MPa, allowing ultra-thin gauge reduction (down to 0.208mm) while retaining extreme burst resistance against high-carbonation beverages (up to 4.2 volumes of CO₂).
To meet rigorous global food safety directives (including California Proposition 65 and European Food Safety Authority standards), our SOT 202 B64 ends utilize third-generation BPA-NI (Bisphenol A Non-Intent) water-borne acrylic or polyester lacquers. Coatings are cross-linked at high temperature to ensure zero flavor transfer for delicate mineral waters and craft beer.
The score line is the precision groove stamped onto the end shell that allows easy opening. Our CNC carbide tooling maintains score residual thickness within ±0.002mm. This eliminates premature leakage during transit while keeping opening forces effortless for consumer convenience.
Strategic innovation trajectories for 2026-2030: Weight optimization, digital carbon tracking, and ultra-high-speed line compatibility.
The global metal packaging industry is undergoing a structural paradigm shift driven by circular economy mandates, decarbonization targets, and changing consumer preferences. As a leading Wholesale Sot 202 B64 Manufacturer Supplier & Suppliers, Shanghai Friend Metals Technology is actively implementing a multi-phase technical roadmap focused on three key innovation pillars:
Through finite element analysis (FEA) and modified alloy metallurgy, our R&D team is transitioning standard 202 B64 shell gauges from 0.224mm down to 0.208mm and testing next-generation 0.198mm ultra-thin substrates. Every 0.01mm reduction in aluminum thickness removes thousands of metric tons of CO₂ emissions across global shipping channels without sacrificing buckle strength or seaming reliability.
Integrating laser-etched high-density QR codes under the stay-on tab and on the top shell surface allows beverage brands to execute direct-to-consumer digital engagement programs and track supply chain authenticity in real time. Our high-speed vision inspection systems verify code readability at 3,000 ends per minute.
Partnering with premier rolling mills, we are increasing Post-Consumer Recycled (PCR) aluminum content in our 5182 coil feedstocks up to 80%. Aluminum is infinitely recyclable without loss of structural integrity, requiring 95% less energy than primary smelting.
How Shanghai Friend Metals delivers robust inventory management, vertical integration, and rapid container dispatch.
Managing global packaging logistics requires more than just manufacturing quality—it requires supply chain agility, cost predictability, and zero-defect delivery schedules. Based in Shanghai, China's international shipping gateway, Shanghai Friend Metals Technology leverages an unmatchable ecosystem of raw aluminum coil rolling, high-speed conversion, and sea-freight connectivity.
We maintain direct strategic alliances with premier Chinese aluminum mills for 3104-H19, 5182-H48, and 8011 coil stock. This guarantees raw material consistency, locked-in pricing schedules, and immunity to localized material shortages.
Our Shanghai facility operates multi-cavity Minster and Stolle conversion presses equipped with continuous online Enamel Rater optical cameras and automatic vision inspection, outputting over 3 billion ends annually.
All ends are packed in moisture-resistant polyethylene sleeves, stacked in reinforced corrugated boxes or fibre drums, sealed with desiccant packs, and stretch-wrapped on heat-treated ISPM-15 export wooden pallets.
Tailoring SOT 202 B64 easy-open lids for diverse beverage formulations across major global export markets.
Beverage categories differ dramatically in carbonation pressure, liquid pH, filling temperatures, and pasteurization cycles. Sourcing managers relying on a Wholesale Sot 202 B64 Manufacturer Supplier & Suppliers can configure specific liner chemistry and end geometry based on localized market applications:
| Beverage Category | Typical Carbonation / Processing | Recommended Coating System | Key Performance Requirement |
|---|---|---|---|
| Craft Beer & Hard Seltzers | 2.4 - 2.8 Vol CO₂ / Tunnel Pasteurization (65°C) | BPA-NI Modified Acrylic / Organosol | Zero metallic off-flavor, High buckle resistance under heat |
| Carbonated Soft Drinks (CSD) | 3.5 - 4.2 Vol CO₂ / Ambient Filling | High-Density Epoxy / BPA-NI Acrylic | High internal pressure hold (> 6.2 bar), Acid resistance (pH 2.4 - 3.2) |
| Ready-To-Drink (RTD) Tea & Coffee | Nitrogen Flush / Hot Fill or Retort Sterilization (121°C) | Retort-Grade Organosol / Polyester | Thermal expansion stability, Zero liner degradation |
| Energy Drinks & Functional Waters | 1.8 - 2.5 Vol CO₂ / Cold Fill | BPA-NI Epoxy / Acrylic Coating | Taurine & Vitamin acid barrier, Smooth tab pull force |
| Nutritional & Milk Powders | Vacuum Nitrogen Packing / Dry Fill | Food-Grade Shell with Foil Membrane Seal | 100% Hermetic oxygen barrier, Moisture resistance |
Engineering protocol for ensuring airtight micro-seams on automated beverage packaging lines.
Achieving a perfect double seam requires meticulous calibration between the seaming chuck, first-operation roll, second-operation roll, and the SOT 202 B64 end curl radius. Shanghai Friend Metals provides complete technical support and sample trial lots for line setup before mass shipment.
Standard seam length should measure between 1.25mm and 1.40mm, with seam thickness maintained at 1.10mm ± 0.05mm for 202 neck standard aluminum cans.
The percentage overlap must exceed 55% (target > 65%), with actual overlap length measuring at least 0.90mm to prevent micro-leakage under pressure.
Optical teardown analysis requires a cover hook wrinkle rating below 20% (Rating 0 to 1) along the entire 360-degree perimeter of the double seam.
Our application engineers will dispatch a 1,000-piece sample lot complete with mill test certificates, enamel rater reports, and seaming tool drawing profiles for your production line trial.
Contact Packaging EngineerExpert technical answers regarding minimum order quantities, coating compliance, tooling compatibility, and international freight protection.
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