Screw On 30x60mm Aluminum Closures for Wine Bottles with Easy Twist
The Screw On 30x60mm Aluminum Closure with Easy Twist is a precision‑engineered cap system designed for still wines, flavored wines, and select fortified wines. It combines reliable sealing performance with consumer‑friendly opening and modern branding possibilities, making it a trusted choice for wineries, bottlers, and private label brands.
Product Highlights
- Standard 30x60 mm format for most still wine bottles
- Easy Twist opening with low torque and smooth thread engagement
- Tight and durable oxygen barrier for flavor and aroma protection
- Compatible with industry‑standard capping machines
- Broad scope for custom colors, embossing, and printing
- Lightweight aluminum for sustainability and recyclability
Typical Alloy & Chemical Composition
These closures are usually produced from aluminum alloys optimized for deep drawing and forming, such as AA8011, AA3105, or similar. Values below are typical ranges rather than guaranteed specifications and can vary based on plant standards.
Representative Alloy Composition (AA8011‑Based Sheet)
| Element | Symbol | Typical Range (wt.%) | Function in Closure Material |
|---|---|---|---|
| Aluminum | Al | Balance | Base metal, provides ductility & lightweight structure |
| Iron | Fe | 0.40 – 0.80 | Controls strength, improves formability and earing behavior |
| Silicon | Si | 0.40 – 0.80 | Enhances formability, aids in rolling & drawing stability |
| Copper | Cu | ≤ 0.10 | Limits corrosion susceptibility, maintains food‑grade quality |
| Manganese | Mn | ≤ 0.20 | Adds slight strengthening without harming ductility |
| Magnesium | Mg | ≤ 0.05 | Kept minimal to avoid over‑hardening the sheet |
| Zinc | Zn | ≤ 0.10 | Residual element, tightly controlled |
| Titanium | Ti | ≤ 0.08 | Grain refiner for consistent mechanical properties |
| Others (each) | - | ≤ 0.05 | Residuals within food‑contact limits |
| Others (total) | - | ≤ 0.15 | Overall residuals maintained at low levels |
Technical Specifications
Dimensional and Mechanical Data
| Parameter | Typical Value / Range | Notes |
|---|---|---|
| Nominal diameter (internal) | 30 mm | Fits standard 30 mm wine bottle finishes |
| Overall height | 60 mm | Suited for 750 ml still wine bottles |
| Shell material thickness | 0.20 – 0.25 mm | Tailored to closure design & embossing depth |
| Tolerance on diameter | ± 0.15 mm | Ensures reliable thread and seal engagement |
| Tolerance on height | ± 0.30 mm | Compatible with high‑speed automated lines |
| Temper | H14 / H16 equivalent | Balanced strength and formability |
| Tensile strength | 130 – 180 MPa | Dependent on alloy and temper |
| Elongation (A50) | ≥ 5 % | Ensures crack‑free threading and rolling |
| Closure weight | ~2.0 – 2.5 g | Varies with liner type and decoration |
| Compatible bottle neck finish | BVS / Stelvin‑type | Industry wine standard finishes |
Surface, Coating, and Decoration
| Feature | Specification / Options | Benefit |
|---|---|---|
| Exterior base coat | Food‑safe epoxy / polyester | Corrosion resistance and color base |
| Exterior topcoat | Custom PMS / RAL colors | Brand identity and shelf appeal |
| Printing | Up to multi‑color offset / silk screen | Logos, winery name, legal text |
| Embossing / debossing | Top panel or sidewall | Premium tactile and visual effect |
| Interior coating | Food‑contact approved lacquer | Protects wine from direct metal contact |
| Liner / sealing insert | Saranex, tin‑saran, or equivalent | Oxygen barrier and cork‑taint free seal |
| Finish | Gloss, semi‑matt, or matt | Tailored to brand positioning |
Easy Twist Functionality
The Easy Twist design focuses on consumer comfort and repeatability on bottling lines.
Ergonomic & Functional Parameters
| Attribute | Typical Value / Description | Result for User |
|---|---|---|
| Opening torque (initial) | 8 – 15 N·cm | Comfortable twist without tools |
| Re‑closing torque | 5 – 12 N·cm | Reliable reseal for short‑term storage |
| Knurling pattern | Vertical or cross‑knurl | Enhanced grip, even with moist hands |
| Edge profile | Rounded, deburred | Smooth handling, reduced risk of cuts |
| Thread shape | Multi‑start, roll‑formed | Fast, stable application and opening |
The engineered thread geometry and knurled exterior ensure that consumers experience a smooth twist when opening, even for older bottles that have been cellared for years.
Sealing Performance & Wine Protection
The combination of aluminum shell, interior lacquer, and liner system is tuned to protect wine from oxidation, leakage, and external contamination.
Sealing & Barrier Performance
| Property | Typical Performance | Notes |
|---|---|---|
| Oxygen transmission (OTR) | Very low; liner‑dependent | Supports fresh fruit and varietal character |
| CO₂ retention | Suitable for still and lightly frizzante wines | Not intended for high‑pressure sparkling |
| Vertical leak tightness | Zero leakage under standard pressure tests | Valid with correctly matched bottle finish |
| Sideways leak resistance | High, up to transport vibration loads | Important for logistics and export |
| Temperature resistance | −20 °C to +60 °C | Survives cold chain and warm warehouses |
| Shelf life capability | Up to several years | Depends on wine style, storage, and liner choice |
Compatibility with Bottling Lines
The 30x60mm aluminum closure is designed to integrate smoothly into most modern and legacy capping systems.
Bottling & Application Parameters
| Aspect | Typical Characteristic | Impact |
|---|---|---|
| Application speed | Up to 20,000 bph or higher | Suitable for high‑speed commercial lines |
| Capping head type | Roll‑on pilfer‑proof (ROPP) | Industry standard for wine |
| Required torque control | Adjustable via capper | Protects glass neck and ensures seal |
| Lubrication | Optimized internal / external coefficients | Minimizes scuffing and mis‑threading |
| Quality control options | Vision inspection, leak test, torque test | Stable line performance and low waste |
Matched with BVS or Stelvin‑style neck finishes, these closures provide repeatable perforation of bridges and secure pilfer‑evident performance.
Sustainability & Recycling
Aluminum closures align with increasingly strict sustainability and recycling requirements.
Environmental Profile
| Parameter | Typical Value / Description | Benefit |
|---|---|---|
| Base material | Recyclable aluminum | Can be recycled repeatedly without loss of quality |
| Scrap recovery | High during production | Internal recycling reduces environmental footprint |
| Average recycled content | Regional and supplier‑dependent | Supports circular economy goals |
| Weight vs. cork + capsule | Typically lower overall packaging mass | Reduces transport emissions |
| Sorting & recycling stream | Compatible with standard metal collection | Widely accepted in many markets |
Clear consumer instructions, such as “Recycle with metals,” can be printed directly on the cap to support collection behavior.
Typical Applications
The Screw On 30x60mm Aluminum Closure with Easy Twist is versatile enough for a broad range of beverages and product concepts.
Main Use Cases
| Product Type | Typical Alcohol Range | Suitability |
|---|---|---|
| Still white wines | 10 – 13 % vol | Preserves freshness, fruitiness, and aromatics |
| Still red wines | 12 – 15 % vol | Reduces oxidation risk, stable aging profile |
| Rosé wines | 10 – 13 % vol | Maintains color and delicate floral notes |
| Semi‑sweet / off‑dry wines | 8 – 11 % vol | Excellent for aromatic and residual sugar wines |
| Lightly sparkling / frizzante | Low over‑pressure | Suitable where pressure remains moderate |
| Fortified wines (selected) | 15 – 20 % vol | Depends on specific brand and storage conditions |
| Flavored wines & RTDs | Varies | Good for stability and flavor retention |
Beyond wine, many producers also apply this format for aperitifs, vermouths, and wine‑based cocktails, particularly for export markets where stability is critical.
Branding and Customization Options
Brand owners can convert the closure into a powerful marketing and identification tool.
Design & Branding Possibilities
| Option | Description | Purpose |
|---|---|---|
| Custom color shells | From classic burgundy, dark green, and black to metallic and pastel shades | Aligns closure with label and bottle design |
| Top embossing | Winery crest or emblem on cap top | Premium appearance and instant recognition |
| Sidewall printing | Vertical brand name, origin, and legal text | Strong shelf impact and informational clarity |
| Promotional printing | QR codes, seasonal designs, or limited‑edition graphics | Supports campaigns, tourism, and storytelling |
| Security features | Micro‑text, UV inks, serialized codes | Anti‑counterfeiting and traceability |
Advantages over Traditional Cork with Capsule
While both systems have their merits, 30x60mm aluminum screw caps offer distinct benefits for many styles and markets.
Comparative Benefits
| Aspect | Aluminum Screw Closure | Traditional Cork + Capsule |
|---|---|---|
| TCA (cork taint) risk | Virtually none | Possible, even with high‑grade cork |
| Opening convenience | Simple twist; no tool needed | Requires corkscrew or opener |
| Re‑sealing | Highly effective short‑term reseal | Variable, often less airtight |
| Oxygen control | More predictable and consistent | Dependent on cork quality and variability |
| Branding space | Large printable area on sides and top | Capsule and cork provide separate elements |
| Line efficiency | Fast, automated application with clear parameters | Corking can be more sensitive to moisture and density |
The Screw On 30x60mm Aluminum Closure for Wine Bottles with Easy Twist delivers a combination of:
- Reliable, long‑term sealing for still and lightly sparkling wines
- Smooth, tool‑free opening and effective re‑closing for consumers
- Strong branding potential through color, print, and embossing
- Compatibility with high‑speed bottling lines and BVS finishes
- Aluminum’s recyclability and resource efficiency
For wineries that want consistent quality in the bottle, efficient bottling operations, and a modern, consumer‑friendly closure, this 30x60mm aluminum system offers a proven solution that balances technical performance, aesthetics, and sustainability.
