30x60mm Aluminum Screw Caps for Wine with Smooth and Secure Finish
When it comes to sealing wine bottles, both aesthetics and functionality play a crucial role. The 30x60mm Aluminum Screw Caps for Wine combine precision engineering with high-quality materials to provide a smooth, secure closure that preserves the wine’s integrity while enhancing its visual appeal.
- Product Name: Aluminum Screw Caps for Wine
- Dimension: 30mm Diameter x 60mm Height
- Material: High-purity Aluminum Alloy
- Surface Finish: Smooth exterior with anodized/polished options available
- Sealing Type: Screw thread with integrated liner for airtight closure
- Intended Use: Wine bottle closures, sparkling wine, liquor bottles, and other premium beverage containers.
Features
1. Optimal Dimension and Fit (30x60mm)
The cap diameter of 30mm is sized to fit standard wine bottle openings commonly used in the industry, while the 60mm height ensures better grip and ease of screwing. The threading inside the cap is designed for a universal fit ensuring compatibility to a wide variety of bottles which helps standardize your packaging needs.
Our factory's experience with 30x60mm aluminum screw caps for wine highlights the crucial interplay between material properties, manufacturing precision, and the final product's performance. The "smooth and secure finish" specification isn't just a marketing point; it's a complex engineering challenge. Imperfect sealing, even microscopic, can lead to oxidation and spoilage, significantly impacting the wine's quality and shelf life. We've found that minute variations in aluminum alloy composition, particularly regarding its ductility and tensile strength, directly affect the cap's ability to form a consistent, airtight seal. Furthermore, the threading process needs meticulous control to prevent stripping or uneven pressure distribution – a common source of leaks and customer complaints. Our quality control focuses heavily on automated inspection, verifying both dimensional accuracy and the integrity of the finished thread profile.
Beyond the technical aspects, we've learned that consumer perception of the "smooth and secure finish" goes beyond mere functionality. A visually appealing cap, with its consistent texture and absence of burrs or imperfections, contributes significantly to the overall premium feel of the wine bottle. This has led us to invest in surface treatment technologies that enhance not only the aesthetic appeal but also the cap's corrosion resistance. The subtle details, like the precise consistency of the cap's height and the even distribution of any applied coating, collectively contribute to a perceived sense of quality that directly influences consumer satisfaction and brand perception. Therefore
| Feature | Description |
|---|---|
| Diameter | 30 mm |
| Height | 60 mm |
| Thread Pitch | Custom fitted as per bottle specifications |
| Weight | Approximately 15 grams |
2. High-Grade Aluminum Alloy Composition
Our 30x60mm screw caps are made from a high-quality aluminum alloy, typically from the 3000 series (Aluminum-Manganese Alloy) which strikes the perfect balance between ductility and strength.
| Alloy | Primary Composition | Mechanical Properties |
|---|---|---|
| 3105 | Al ≥ 96.7%, Mn 0.3-0.7% | Tensile strength ~145 MPa; Elongation ~25% |
| 3004 | Al ≥ 94.5%, Mn 0.8-1.3% | Tensile strength ~190 MPa; Elongation ~12% |
- Corrosion Resistance: Excellent resistance due to aluminum oxide layer, ensures longevity under humid & acidic wine storage environments.
- Lightweight: Helps reduce packaging costs and facilitates logistics.
- Eco-Friendly: Aluminum caps are 100% recyclable.
3. Smooth, Seamless Exterior Finish
The outer surface undergoes anodizing or polishing processes to achieve a smooth feel and high gloss finish—a factor in branding and shelf appeal. Anodized surfaces also improve wear resistance and are available in custom colors for brand personalization.
| Finish Type | Characteristics | Impact |
|---|---|---|
| Anodized | Transparent or colored oxide layer | Durability & aesthetics |
| Polished | Mirror-like glossy surface | Premium look |
| Matte/polymer Coated | Ambient, no glare | Unique branding appearance |
4. Secure, Airtight Sealing System
An integrated liner (usually made of food-grade polyethylene or ethylene-vinyl acetate - EVA) is bonded inside the cap allowing:
- Leak-proof seal: Prevents oxygen ingress and wine evaporation.
- Preservation of aroma and taste: Eliminates exposure to external contaminants.
- Reusable Secured Seal: Enables optimal resealing if needed.
The screw-thread design ensures user-friendly and quick bottle opening without compromising closure integrity.
Applications
Wine Industry
- Bottling of red, white, and sparkling wines.
- Perfect for boutique and large scale wineries.
- Extend shelf life by preventing oxidation and contamination.
Liquor & Spirits
- Ideal for whiskies, vodkas and wines repackaged with resealable convenience.
Beverage Packaging
- Suitable even for non-alcoholic premium beverages seeking aesthetic appeal and tamper-evident sealing.
Specialty Products
- Also used in packaging gourmet items like oils, vinegar, and extracts requiring airtight containers ✅
Technical Specifications
| Parameter | Specification |
|---|---|
| Diameter (Inner/Outer) | Inner: 30 mm / Outer: ~31.5 mm |
| Height | 60 mm |
| Material Composition | Aluminum Alloy 3105 / 3004 |
| Liner Type | Food-grade PE/EVA |
| Operating Temperature | -40°C to +80°C |
| Thread Style | Continuous single thread |
| Surface Treatment | Anodized / Polished / Matte Coated |
| Weight | 14-16 g |
Why Choose Our 30x60mm Aluminum Screw Caps?
- Reliability: Tested rigorously under real storage conditions.
- Customization: Color, logo printing, and embossing available.
- Sustainability: Fully recyclable materials.
- Cost Efficiency: Lightweight, scalable production.
