The 28x18mm aluminum screw cap produced by HAOMEI Aluminum is a common bottle cap size widely used for packaging various liquid products, particularly in industries such as pharmaceuticals, cosmetics, beverages, and alcoholic drinks. The 28x18mm aluminum closure is the preferred packaging choice for vodka bottles, offering excellent sealing performance while enhancing the premium image of the product and increasing brand recognition.
Aluminum Screw Cap Specifications
| Diameter | 28mm |
| Height | 18mm |
| Weight | 1.5g |
| Type | Screw cap |
| Material | Aluminum |
| Color | Gold, Green, Blue, Customizable |
| Printing Techniques | Silk screen printing, side printing, hot stamping (top, side, positioning), raised printing, etc. |
| Liner | PE liner, foil liner, PE liner with QR code, etc. |
| Packaging | Standard export cartons/pallets, or custom packaging as needed. |
| MOQ | 50,000 pieces |
Advantages of 28mm Liquor Aluminum Caps
Precise Size: 28x18mm, suitable for most vodka bottles, preventing air contamination and preserving the quality of the liquor.
Superior Material: The aluminum material is corrosion-resistant, making it ideal for high-alcohol vodka, maintaining product stability.
Strong Sealing: The inner liner enhances the seal, keeping the flavor and aroma of the liquor intact.
Easy-to-Open Design: Convenient for opening, and may include anti-counterfeit features to enhance brand security.
Eco-friendly and Sustainable: Aluminum is recyclable, reducing packaging waste and complying with environmental regulations.
Security and Anti-counterfeit: Includes micro laser engraving and QR code scanning technologies to ensure traceability and protect consumers and brands.
Production Process of 28x18mm Aluminum Seal Caps
1. Material Selection and Preparation
Choose high-quality aluminum alloy with corrosion resistance and ductility.
Purchase aluminum coils, ensuring the correct thickness, width, and quality.
Clean the aluminum surface to remove impurities and oil.
2. Stamping and Shaping
Design and create a dedicated mold (28x18mm).
Use a high-speed stamping machine to stamp the aluminum coil into the basic shape of the cap.
3. Deep Drawing
Stretch the aluminum sheet through the mold to increase the cap depth, ensuring a tight fit.
4. Surface Treatment
Perform anodizing to enhance corrosion resistance.
Apply spraying, heat transfer printing, or laser engraving as needed to improve appearance and add anti-counterfeit features.
5. Fixing the Liner
Select suitable liner materials (e.g., foam EPE, plastic film, etc.).
Attach the liner using pressure or heat pressing to ensure proper sealing.
6. Printing and Anti-counterfeit Technology
Use heat-press printing and laser engraving to enhance brand visibility.
Print QR codes or anti-counterfeit labels for easy authenticity verification.
7. Inspection and Quality Control
Perform visual checks to ensure the caps are flawless.
Measure dimensions to ensure accuracy.
Conduct sealing tests to guarantee leak-proof quality.
8. Packaging and Shipping
Sort and package according to customer requirements.
