28MM Aluminum Screw Cap Introduction
The 28mm aluminum screw cap is a widely used closure component in the liquid packaging industry. Made from high-quality aluminum through precision stamping and thread rolling, this cap offers excellent sealing performance, strong corrosion resistance, and an attractive appearance. It is commonly used in food, beverages, health supplements, cosmetics, and pharmaceutical industries.
The 28mm aluminum cap features a continuous thread (CT) design with a ribbed top edge for leak-proof sealing and easy twist-on/twist-off functionality. It is compatible with a variety of bottle types, including glass bottles, PET bottles, and aluminum bottles, making it suitable for diverse packaging needs.
Each screw cap includes a polyethylene (PE) foam liner, known for its compressibility and stable sealing. Aluminum closures are lightweight, impact-resistant, and temperature-tolerant, making them a versatile packaging solution.
Specifications of the 28mm Aluminum Cap
| Neck size | 28mm |
| Wall thickness | 0.35–0.568mm (customizable) |
| Weight | Approx. 3.69g (with liner) |
| Material | Aluminum 8011 |
| Type | Screw cap |
| Colors | Gold, silver, or customizable |
| Printing options | Screen printing, side printing, hot stamping (top, side, or position stamping), embossing |
| Liner options | PE liner, foil liner, QR-coded PE liner, etc. |
| MOQ | 50,000 pcs |
| Customization | Available |
| Samples | Provided |
| Packaging | Carton + Pallet |
Product Features of the 28mm Aluminum Screw Cap
1. Excellent Sealing: Prevents liquid leakage, gas ingress, or evaporation, extending product shelf life.
2. Good Corrosion Resistance: Suitable for packaging acidic or alkaline beverages and liquid products.
3. Easy to Open and Close: Screw design allows smooth manual opening and tightening, enhancing user convenience.
Highly Customizable: Color, logo, and surface finish can be personalized to match brand identity.
4. High Temperature Resistant: Certain models withstand high-temperature sterilization—ideal for pharmaceutical and hot-fill food packaging.
Eco-Friendly & Recyclable: Made of 100% recyclable aluminum—an environmentally responsible choice.
5. Premium Appearance: Metallic luster and refined texture enhance product appeal and perceived value.
Applications of the 28mm Aluminum ROPP Cap
Beverage Industry
Glass bottled juice, tea, carbonated drinks, functional beverages
Suitable for cold fill, hot fill, and some low-pressure carbonated drinks
Preserves flavor and enhances brand positioning
Health Supplement Industry
Oral liquids, nutritional drinks, plant extracts
Aluminum caps provide effective moisture and oxidation protection
Pharmaceutical Packaging
Suitable for non-injectable liquid medications
E.g., cough syrups, herbal extracts—ensures hygiene and secure sealing
Cosmetics & Personal Care
Ideal for essential oils, toners, premium skincare products
Aluminum finish enhances product elegance and luxury appeal
FAQ
Q1: What is your minimum order quantity (MOQ)?
A1: Our MOQ is 50,000 pieces.
Q2: Do you provide samples?
A2: HAOMEI Aluminum provides samples of existing products. Sample and custom design fees apply, but fees may be refundable based on order quantity.
Q3: What is the typical lead time for an order?
A3: Normal delivery time is 25–30 working days, depending on the product and quantity. We have strong production capacity to ensure fast delivery, even for large orders.
Q4: Can I customize the aluminum cap design?
A4: Yes, we offer custom design services. Please send us your artwork or design file.
Q5: What are your payment terms?
A5: We accept payments via T/T (wire transfer), Western Union, and L/C (letter of credit). Please contact us for more payment options.
