Crown cap introduction
Named for their crown-like shape, crown caps are known for their practicality, aesthetics, and cost-effectiveness, and are widely used to seal beer and carbonated drink bottles. They are also ideal for sealing sparkling mineral water bottles and carbonated wine bottles during fermentation.
Compared to traditional tinplate caps, aluminum crown caps are becoming the new choice for premium beverage packaging thanks to their lighter weight, rust resistance, and environmental friendliness.
HAOMEI Aluminum specializes in supplying 26mm and 29mm aluminum beer crown caps, compatible with both automatic capping machines and manual cappers. We offer custom options for logos, colors, and sizes, meeting needs from mass production to personalized brand packaging.
26mm Aluminum Crown Caps
Ideal for PET bottles, aluminum bottles, or glass bottles, commonly used for natural or mineral water, carbonated drinks, and various beverage products. They offer excellent sealing performance.
29mm Aluminum Crown Caps
Suitable for aluminum bottles and glass bottles, widely used in products such as still or sparkling water, beer, energy drinks, wine, and champagne. Excellent sealing ensures freshness.
Crown Cap Product Parameters
| Product Name | Aluminum Crown Cap / Beer Aluminum Cap |
| Sizes | 26mm / 29mm (standard bottle mouth diameter) |
| Material | Food-grade Aluminum |
| Liner Options | PVC-Free / PE / EPE Foam Liners |
| Colors | Silver, Gold, Black, Red, Green, etc. (custom colors available) |
| Printing Methods | Gravure / Offset / Screen printing (supports inner, outer, and bottom printing) |
| Compatible Bottles | Standard beer bottles, soda bottles, juice bottles, condiment glass bottles |
| Capping Compatibility | Compatible with automatic or manual capping systems |
| MOQ | 50,000 pieces |
| Samples | Available |
| Packaging | Carton + Pallet |
Key Advantages of Aluminum Crown Caps
1. Lightweight & Eco-Friendly
Aluminum is lighter than tinplate, reducing transportation costs. 100% recyclable, aligned with sustainable packaging trends.
2. Superior Sealing
Flexible liner materials offer excellent airtightness, effectively preserving carbonation and freshness.
3. Rust & Corrosion Resistance
Naturally rustproof, making aluminum caps ideal for high humidity environments and export packaging by sea.
4. High-Quality Printing
Aluminum surfaces support high-definition printing and special effects like hot stamping, matte finishes, brushed metal, enhancing brand visibility.
5. Tamper Evident
Aluminum pilfer-proof caps show visible signs once opened, improving product safety and anti-counterfeiting.
6. Safe & Hygienic
Made with food-grade materials and non-toxic inks, compliant with international standards including FDA, SGS, ROHS.
Application Fields
Craft Breweries: Custom-designed caps to elevate brand uniqueness
Carbonated Beverage Brands: Preserve fizz, extend shelf-life
Functional & Juice Drinks: Ensure seal integrity and visual appeal
Health Supplements & Fermented Beverages: Airtight seals for freshness and stability
Gift Packaging / Limited Editions: Custom caps boost presentation and value
Production Process of Crown Caps
As a critical sealing component, crown caps require printing on the outer surface and sealing & anti-corrosion treatment on the inner surface. The production process includes:
Aluminum Sheet
→ Reverse Side Anti-Rust Coating (epoxy phenolic resin)
→ Reverse Side Adhesive Coating (PVC organic sealant)
→ Front Base Coating (polyester primer)
→ Front Printing (ink)
→ Front Varnish Coating (polyester topcoat)
→ Visual Inspection of Printed Sheets
→ Punching and Forming
→ Liner Injection (PVC/PE)
→ Final Inspection
→ Carton + Pallet Packaging
Note: The "reverse side" refers to the interior of the crown cap (in contact with the beverage); the "front side" is the exterior, where printing is applied.
