Aluminium closure sheet

Closure sheet, which is used in the manufacture of screw cap systems for bottles and other containers, is one of the main products in the aluminium packaging market.Aluminium’s property of being impermeable to gases and light, as well as the fact that it can be easily formed and decorated, make it a material of choice for closure applications.

long capAluminium closure sheet is used for the bottle cap market. Using a unique rolling technology, Haomei supplies aluminium sheets ideally suited to manufacture the caps for long neck wine bottles, extremely deep drawn and decorated closures, plus a range of pilfer proof caps for beverage bottles, soft drink, juice, isotonic beverage, energy beverage, and other products, such as the 30x60 mm specifications are often used in the wine and spirits segment.

Aluminium Closure Sheet - The ideal material for the production of bottle closures:

  • is light weight
  • is easily and economically recycled
  • has superior barrier qualities
  • has good formability
  • offers a bright finish for decoration.


Alloy Temper Thickness Width Length Coil Strip Earing Diagonal
H14, H16,  H24, H26 0.15~0.25 mm
500~1000 mm 
(+0.5mm, -0mm)
500~1000 mm
 (+0.5mm, -0mm)
500~1000 mm 20~500 mm 1 ≤ 1mm

Chemical Compostions Aluminium closure sheet

Alloy Fe Si Cu Mn Mg Cr Zn Ni Ti Other Al
Each Total
8011 0.60~1.0  0.50~0.9 0.1 0.2 0.05 0.05 0.1 - 0.08 0.05 0.15 Remain
3105 0.7 0.6 0.3 0.3~0.8 0.2~0.8 0.2 0.4 - 0.1 0.05 0.15 Remains

Mechanical Property for Continuous Casting

Thickness (mm)
U.T.S (Mpa)
Elongation (%)

Mechanical Property for Direct Casting

Alloy Temper Thickness (mm) U.T.S (Mpa) Elongation (%)
8011 H14 0.15~0.25  125~155 ≧2
3105 H14 0.15~0.25  150~200 ≧1

The supplier of choice – Haomei Aluminium Closure Sheet

Haomei Aluminium Closure Sheets are suitable for both transparent and non-transparent lacquering, and will not bend during curing process. For applications requiring deep drawing, such as long caps, Haomei aluminium closure sheets show very low earing, greatly reducing scrap rate for our clients.
Haomei Aluminum closure sheet is rolled to very fine tolerances to yield more closure per tonne of stock and to allow uninterrupted operation of high-speed, multiple-cavity presses. Its strength, high formability, low earring and printable surfaces make it ideal for pilfer-proof caps and vial seals.
aluminium sheets for ropp closurers

Production Process

Printing process

aluminium sheet
Foundation processing(Known as a “size coat,” foundation processing is conducted to help the paint adhere better. Products that are processed using phosphoric acid chromate or zirconium are often cut.)
Exterior (interior) paint Either the public side or the product side surface may be painted first, depending on the product.
Exterior printing (The number of printing passes depends on the image to be printed on the cap).-Topcoat varnish Glossy varnish
Cutting (A single slitter method is used to cut the sheet into three equal strips. For some products, both edges are trimmed at this time).

Press Process

First pressing
The cut printing plate is run through the press to create the cap shape (straight side walls).
Second pressing
The bottom edge of the formed cap is trimmed off (broken off) or curled.
Attaching the liner to the inner surface
Adhesive joining
Knurl forming
Protrusions are formed on the sides of the cap, near the top, to prevent slippage when twisting the lid open.
Perforations are added to ensure that when the lid is twisted open, the TE band (ring) remains behind.
Fig. 1st Pressing
1st Pressing
Leave a hat-like shape at the base of the pressing.
Fig. 2nd Pressing
2nd Pressing
At the same time as the first pressing, the hat-shaped edge is trimmed away.
Fig. Knurling
Knurls are added as the cap rotates.
Fig. Perforation Perforation


aluminium closure sheet

Haomei aluminium closure sheet-We would like to highlight our aluminium closure sheet,8011 thin aluminium sheet for caps and closures, aluminium Closure Stock,aluminium lacquered,printed aluminium sheets with good quality and competitive price bottle cap material ,Haomei aluminium closure sheet show very low earing, greatly reducing scrap rate for our clients.


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