Aluminium Ropp caps manufactures in China

At present, most of the domestic packaging of liquor, wine, medicinal liquor and beverages are still based on glass bottles. About 50% of the bottle caps are made of Aluminium Ropp caps .Aluminium Ropp caps manufactures in China will grow at a rate of 10% per year. By 2010, the amount ofAluminium Ropp caps manufactures in China will reach 15 billion, and about 60,000 tons of aluminum strips will be needed. There are nearly 200 aluminum cap production factories in China, with an annual design capacity of about 9 billion pieces, including 30 production lines with a production capacity of more than 5 billion, which can produce nearly 100 kinds of bottle caps.
  


Aluminum caps are often machined on highly automated lines, so the strength, elongation and dimensional deviation of the material are critical, otherwise cracks or creases can occur during deep drawing. In order to ensure the easy printing after the cap is formed, the surface of the cap plate is required to be flat, without rolling marks, scratches and stains. Generally, the alloy materials used are 8001-HI4, 3003-H16 and the like. The material specification generally has a thickness of 0.20~43.3mm, an allowable tolerance of ±0.1%, and a width of 449-796mm. The production of Aluminium Ropp caps manufactures in China can be carried out by hot rolling or continuous casting and rolling, respectively, and cold rolling. Production practice shows that the hot rolled billet is superior to the cast billet in the use effect of Aluminium Ropp caps manufactures in China
.