Wholesale 28mm 38mm Glass Bottle Aluminium ROPP Caps
2025-06-25

Glass bottle aluminum ROPP (Roll On Pilfer Proof) caps are widely used in beverages, alcoholic beverages, medicines, and condiments glass bottles. Aluminium ROPP caps are favored for their good sealing and anti-counterfeiting properties.


glass bottle aluminum ropp cap



Glass bottle aluminum ROPP caps are usually made of 8011 aluminum alloy and 3105 aluminum alloy. These aluminum alloys have good formability, high earing rate and flatness, which can ensure the deep drawing of long bottle caps. Glass bottle aluminum ROPP caps can be customized with printed logos. Customized printed logos can enhance the brand image and recognition of the product, making the product more distinctive in the market. Our company will choose the appropriate printing process for production according to customer requirements. Common printing processes include silk screen printing, hot stamping, pad printing, etc.

Aluminum ROPP caps for glass bottles


The common diameter sizes of ROPP aluminum caps for glass bottles are as follows:

- 28mm: such as 28x18mm aluminum screw caps for water, suitable for glass beverage bottles, etc., 28mm gold anti-theft aluminum caps with 50ml glass bottles, often used for health care oral liquids, soda drinks, beer and other glass bottle packaging.

- 29mm: For example, in the bottle making industry, there are glass bottle mouths with a diameter of 29mm (21mm mouth) and a pouring hoop on the cap, which are suitable for static liquids, and "29mm185" glass bottle mouths, etc.

- 30mm: Like 30x60mm wine screw caps, 30.9x24mm non-refillable caps for water beverage glass bottles, etc.

- 31.5mm: 31.5x24mm olive oil cap aluminum plastic caps, suitable for olive oil glass bottles.

- 32mm: In the bottle industry, it is used for still liquids (verplast diameter 32/24 No. 3 caliber), 32 caliber means the bottle mouth diameter is 32mm, and there is a pouring hoop on the bottle cap.

- 35.5mm: Such as 35.5x24mm olive oil cap aluminum plastic cap.

- 38mm: Commonly seen in 38mm beverage pull ring cap aluminum easy pull cap, used for beverages, yogurt drinks, etc. in glass bottles with 38 mouths.


Features of glass bottle aluminum ROPP cap:

- Tamper-proof:

Any attempt to open the bottle will result in obvious damage to the bottle cap, indicating that the product may have been tampered with.

- Secure seal:

A tight seal helps to maintain the freshness and integrity of the product in the bottle, which is particularly important for products that need to maintain quality for a long time.

- Durability:

Made of aluminum or other strong materials, it is very durable and ensures that the bottle cap remains intact during handling, transportation and storage, thereby minimizing the risk of leakage or contamination.

- Aesthetics:

A variety of designs, colors and finishes can be customized to enhance the overall appearance of the product packaging.

- Recyclability:

Aluminium ROPP caps are fully recyclable, contributing to sustainable development and reducing environmental impact.

- Compatibility:

Compatible with various types and sizes of bottles, providing versatility for packaging a variety of products.


Applications of glass bottle aluminum ropp caps:

- Beverage industry:

Widely used for the closure of bottled beverages such as juice, carbonated drinks, mineral water, etc.

- Alcoholic beverage industry:

In bottled alcoholic beverages such as wine and spirits, aluminum ROPP caps are widely used to ensure the quality and safety of products.

- Food industry:

Used for the packaging of food products such as condiments, soy sauce, and edible oil.

- Pharmaceutical industry:

In pharmaceutical packaging, aluminium ROPP caps can provide good sealing and anti-counterfeiting functions to ensure the safety of drugs.


Aluminum ROPP caps for glass bottles have become an ideal choice for bottled products in many industries due to their excellent sealing, anti-counterfeiting properties and aesthetics. They are widely used in beverages, alcoholic beverages, food, and pharmaceuticals, meeting the market's demand for safety, convenience, and beauty.