Haomei Aluminum supplies aluminum for wine screw caps to closure manufacturers and converters. We focus on the sheet and coil used to manufacture the cap shell—not finished wine closures.
For a wine screw cap, material selection is about more than reaching a nominal thickness. The aluminum must suit the forming sequence, maintain a consistent skirt profile and provide a suitable surface for the specified coating and decoration process.
- Typical Alloys
- 8011 and 3105
- Supply Forms
- Coils, slit strip and sheets
- Surface Options
- Mill finish or specified coating
For a broader overview of bottle-cap materials, visit our Aluminum Closure Stock for Bottle Caps page.
Wine Screw Cap Aluminum: Alloy Options and Supply Forms
Haomei Aluminum supplies closure stock in sheets, coils and slit strips.
3105 Aluminum Closure Stock
3105 is an option for wine screw cap production, including designs with longer skirts that require a balance of strength and formability. H14 and H16 are useful starting points for material selection, while the final temper and thickness should be checked against the cap geometry, thread-forming process and tamper-evident band design.
8011 Aluminum Closure Stock
8011 is another option for aluminum screw closures. H14 and H16 are common reference tempers for evaluation, with thicknesses of 0.18–0.25 mm serving as a reference range for selected applications. H18 may be considered for specific cap designs, but its suitability needs to be established through forming trials.
Aluminum Closure Stock Specifications for Wine Screw Caps
| Specification | 3105 Aluminum Closure Stock | 8011 Aluminum Closure Stock |
| Temper | H14, H24, H16, H26, H18 | Commonly H14 and H16; H18 for selected applications |
| Thickness | 0.150–0.500 mm | Reference range: 0.18–0.25 mm; other thicknesses subject to confirmation |
| Sheet width | 500–1500 mm | Reference range: 500–1000 mm |
| Strip width | 50–1500 mm | Specified according to blank layout and slitting requirements |
| Sheet length | 500–2000 mm; confirm before ordering | Reference range: 500–2000 mm; cut-to-length sizes by agreement |
| Coil inside diameter | 75, 150, 200, 300, 350, 405 or 505 mm | 405 or 505 mm are common reference options |
| Supply form | Sheet, coil or slit strip, subject to order confirmation | Sheet, coil or slit strip, subject to availability confirmation |
8011 Aluminum for Screw Caps
| Alloy | 8011 |
| Thickness | 0.20–0.25 mm |
| Coil Width | 50–1500 mm, subject to confirmation |
| Temper | O (annealed, soft condition) |
| Reference Cap Dimensions | 30 × 60 mm / 31.5 × 60 mm |
| Liner Compatibility | PVC, EVOH or PVDC-based liner systems, subject to closure design validation |
3105-H14 Aluminum for Screw Caps
| Alloy and Temper | 3105-H14 |
| Thickness | 0.23–0.28 mm |
| Coil Width | 60–1200 mm, subject to confirmation |
| Temper | H14 (strain-hardened and partially annealed) |
| Reference Cap Dimensions | 30 × 60 mm / 31.5 × 60 mm |
| Liner Compatibility | PVC, Saranex or other specified barrier systems, subject to validation |
3105-H16 Aluminum for Screw Caps
| Alloy and Temper | 3105-H16 |
| Thickness | 0.25–0.30 mm |
| Coil Width | Custom width, subject to confirmation |
| Temper | H16 (strain-hardened, higher strength than H14) |
| Reference Cap Dimensions | 31.5 × 60 mm / 32 × 60 mm |
| Liner Compatibility | EVOH-based, high-barrier or Saran-type liner systems, subject to validation |
When requesting a quotation, please provide the alloy, temper, thickness, required sheet or strip width, coil inside diameter where applicable, and surface finish.
Discuss Your Wine Screw Cap Aluminum Requirements
Haomei Aluminum supplies raw aluminum materials for closure manufacturing. Share your wine-cap drawing, requested alloy, temper, thickness, surface finish and purchasing quantity so the material specification can be reviewed against your production requirements.
Send Your Material RequirementsAluminum Sheet, Coil or Slit Strip for Wine Caps?
The right supply form for wine screw cap production depends on the feeding system, blank layout and subsequent forming operations. Haomei Aluminum supplies closure stock in sheets, coils and slit strips, with dimensions specified according to the production requirements.
- Aluminum sheets: Suitable for sheet-fed coating, printing and cap blanking operations. Sheet size should match the press layout and blank dimensions to make efficient use of the material. See our aluminum closure sheets for available sheet sizes and alloy options.
- Aluminum coils: Suitable for continuous production lines equipped with coil-feeding and blanking systems. When specifying a coil, confirm the width, inside diameter (ID), outside diameter (OD) and maximum coil weight required by the equipment. More details are available on our aluminum closure coils page.
- Slit aluminum strips: Suitable for production lines that require narrower feed widths or a specific blank arrangement. Strip width, thickness tolerance, edge condition and burr control should be agreed before slitting to help maintain consistent feeding and blanking performance. The required strip dimensions should be matched to the tooling and production process.
Aluminum Surface Finishes for Wine Screw Caps
The surface finish of wine screw cap aluminum depends on the coating, printing and forming processes used to produce the closure.
Mill-Finish Aluminum
Mill-finish aluminum is an option when surface coating, lacquering or printing will be carried out during a later production stage. Before ordering, agree on the acceptable surface appearance, cleanliness and handling marks, as these can affect subsequent coating or decoration. Where pretreatment is required, its compatibility with the supplied material should also be confirmed.
Pre-Coated or Lacquered Aluminum
Pre-coated or lacquered aluminum is suitable for production routes that specify a prepared surface before cap forming. Important details include coating type, color, gloss level and whether one or both sides require a finish. Coating adhesion and flexibility should be checked after forming to ensure the surface remains acceptable for the intended closure design.
Printed and Decorative Finishes
Printed graphics, branded colors and metallic effects require coordination between the aluminum surface, coating system and printing process. Color consistency, print registration, visible defects and ink adhesion should be evaluated, including after forming where applicable. Providing the decoration requirements before material production helps clarify the surface specification.
Quality Control of Aluminum Sheet for Wine Caps
Earing Control During Deep Drawing
At Haomei Aluminum, we pay close attention to the rolling and annealing conditions that affect how aluminum behaves during cup forming. Uneven metal flow can cause excessive earing around the cap rim, resulting in more trimming and material waste. We control the properties of our raw material and check the alloy, temper, and relevant forming requirements against the agreed order specifications to help ensure consistent performance during wine cap production.
Surface Quality for Printing and Lacquering
A clean, uniform aluminum surface is essential when the material will be printed, lacquered, or colored. At Haomei Aluminum, we inspect our wine closure aluminum stock for visible defects such as scratches, roll marks, and chatter marks. We also monitor surface cleanliness and residual rolling oil, taking account of the specified finish and subsequent coating process. Our aim is to supply aluminum with a surface condition that meets the customer's requirements for further processing.
Thickness Consistency and Strip Flatness
Consistent thickness and flatness help maintain stable feeding, blanking, and forming during wine cap production. We check the thickness and dimensional tolerances of our aluminum sheets and coils against the order requirements, while monitoring flatness issues such as edge wave and center buckle. We also pay attention to slit width and edge condition where applicable, helping customers maintain consistent material handling and minimize unnecessary adjustments during production.
FAQ – Aluminum for Wine Screw Caps
Which aluminum alloy is suitable for wine screw caps?
8011 and 3105 are candidate alloys for evaluation. The suitable grade depends on the cap drawing, required temper, forming conditions, surface treatment and the closure manufacturer's acceptance criteria. Material selection should be confirmed through technical review and, when necessary, forming trials.
Can Haomei supply aluminum sheet for wine caps?
Haomei supplies aluminum material in sheet, coil and slit-strip forms, subject to the confirmed order specification. Buyers should provide the required alloy, temper, thickness, dimensions, surface condition and relevant tolerance requirements.
Can the aluminum surface be coated or lacquered?
Surface requirements can be discussed according to the project, including mill finish or specified coating and lacquer conditions. Compatibility with forming, printing and the customer's finishing process should be confirmed before production.
What information is needed for a material quotation?
Provide the alloy and temper, thickness, width or sheet dimensions, required surface finish, coil dimensions where applicable, quantity, technical tolerances and target delivery terms. A closure drawing or existing material specification can help establish the appropriate starting point for review.