Aluminum ROPP Cap
Aluminum ROPP (Roll-On Pilfer Proof) caps are widely used closures designed to provide a tamper-evident seal, ensuring product integrity and consumer safety.
Aluminum ROPP caps consist of a thin aluminum shell with no threads. During the capping process, the cap is placed on the bottle neck, and a set of rollers applies pressure to form threads on the cap, which interlock with the corresponding threads on the bottle neck. This rolling action creates a secure tamper-evident seal.
Aluminum ROPP Cap is manufactured through a rolling technique, ensuring that once the bottle is opened, the cap cannot be resealed, preventing tampering. It is commonly used in packaging for mineral water, soft drinks, beer, wine, spirits, juice, edible oil, and many other products. The design of the ROPP cap not only provides effective sealing but also enhances product safety and consumer trust.
HC Bottle Cap Manufacturing Co., Ltd. has over 17 years of experience in providing different kinds of aluminum caps, plastic caps, aluminum-plastic caps, glass bottles, and other packaging products. Our products are exported to more than 20 countries around the world, including the United States, Europe, South Africa, Southeast Asia, etc.
Aluminum ROPP Cap Sizes and Specifications
Aluminum ROPP caps are available in various sizes, with diameters ranging from 25mm to 38mm and heights up to 60mm. For non-refillable caps, the size options typically range from 28mm to 32.5mm.
| Property | Specification Information |
| Material Alloy | Aluminum Alloy |
| Diameter | 25mm-38mm |
| Height | 10mm to 60mm |
| Color | Black, Blue, Gold, Red, Silver, White, Yellow, Customizable |
| Liner | Foam Liner, EPE Liner (Expanded Polyethylene), Paper Liner, Threaded Liner |
| Surface Treatment | Printing, Colored Coating, Roll-on Pilfer Proof, Mirror Finish, Anodizing |
| Anti-Tamper Design | Tamper Evidence Ring, Tamper Proof Label |
| Sealing Type | Threaded Seal, Compression Seal |
| Applicable Containers | Glass Bottles, PET Bottles, Aluminum Bottles, etc. |
| Applications | Mineral Water, Soft Drinks, Juice, Beer, Wine, Spirits, Edible Oil, Vinegar, Seasonings, Medicine, Health Supplements, etc. |
| Common Specifications | 25mm, 28mm, 31.5mm, 38mm, 53mm, 22mm |
Each size is available with a suitable sealing effect based on different product types, ensuring the container's seal and tamper-proof functionality.
HC Bottle Cap Manufacturing Co., Ltd. is equipped with internationally leading roller printing and capping equipment, as well as production lines for commonly used 28mm and 38mm caps. Our best-selling products include aluminum anti-counterfeit caps and composite anti-counterfeit caps, which are exported to international markets such as Asia, Europe, and the Americas.
Aluminum ROPP Cap Quality Testing
The quality testing of aluminum ROPP caps covers multiple indicators such as appearance, dimensions, sealing performance, and pressure resistance. Each item is designed to ensure the comprehensiveness of quality.
At HC Bottle Cap Manufacturing Co., Ltd., we are committed to producing high-quality aluminum ROPP caps. All aluminum ROPP caps undergo strict quality inspection processes.
| Testing Items | Description |
| Raw Material Inspection | We rigorously select high-quality aluminum materials to ensure they meet international standards, ensuring the durability and sealing performance of the caps. |
| Dimensional Accuracy Testing | Using advanced measuring equipment, we accurately measure the diameter, height, and thread specifications of the caps to ensure perfect compatibility with the bottle neck. |
| Sealing Performance Test | We simulate actual use conditions to test the sealing performance of the caps, ensuring that the product will not leak during transport and storage. |
| Corrosion Resistance Evaluation | We conduct salt spray tests to evaluate the corrosion resistance of the caps, ensuring the stability of the product in various environments. |
| Mechanical Strength Test | We perform tensile and compression tests to evaluate the mechanical strength of the caps, ensuring their reliability during use. |
| Appearance Quality Inspection | We visually inspect the surface of the caps to ensure they are free of scratches, dents, or other defects, meeting aesthetic requirements. |
Aluminum ROPP Cap Hot-Selling Product Series
| Product | Description |
| 28mm ROPP Cap | The 28mm ROPP Cap is a common sealing cap, suitable for various beverage packaging, especially for mineral water, beer, soft drinks, and energy drinks. This cap provides excellent sealing, ensuring the product's original flavor and safety, and also offers tamper-proof functionality. It is widely used in bottled beverages on the market. |
| 38mm ROPP Cap | The 38mm ROPP Cap is designed for bottles with larger openings and is suitable for bottled water, beer, wine, and other beverages. Its larger size ensures excellent sealing and tamper-proof properties, and it can accommodate larger capacity bottled products. It is commonly used for premium beverages and large bottle packaging. |
| 53mm ROPP Cap | The 53mm ROPP Cap is suitable for special bottled beverages, such as certain spirits or large bottled drinks. Its size provides strong sealing for larger bottle openings, preventing leaks and ensuring product safety. Additionally, the tamper-proof feature enhances brand protection. |
| 31.5mm ROPP Cap | The 31.5mm ROPP Cap is an ideal choice for standard beverage bottles, widely used for water, beer, soft drinks, and other everyday beverages. Its standard size fits a variety of bottle types, ensuring a good seal and is commonly seen in bottled beverages in the market. It is a typical sealing cap for consumer daily-use products. |
| Printed ROPP Cap | Printed ROPP Caps not only provide basic sealing protection but also allow for brand visual display on the bottle. Through printed patterns, brands can increase their visibility in the market, especially for beverages, seasonings, and alcoholic products. These caps offer both functionality and aesthetic appeal. |
| 25mm ROPP Cap | The 25mm ROPP Cap is suitable for small bottle products, such as small beverage bottles and seasoning bottles. Its compact size is ideal for lightweight beverage packaging, providing reliable sealing. It is commonly used in bottled mineral water, juice, and other small packaging food and beverage products. |
| 28x15.5 mm Aluminum ROPP Cap | The 28x15.5 mm Aluminum ROPP Cap is suitable for bottled products like mineral water, beer, soft drinks, and energy drinks. This cap, with its precise size and tight sealing performance, effectively preserves the freshness and original taste of the liquid inside the bottle. It also features tamper-proof functionality and is commonly used in everyday consumer bottled packaging. |
| 28x18 mm Aluminum ROPP Cap | The 28x18 mm Aluminum ROPP Cap is suitable for packaging a wide range of beverages such as water, beer, soft drinks, and wine. It provides excellent sealing performance, ensuring the safety and freshness of beverages during transportation and storage, while also featuring tamper-proof labeling. It is widely used for medium-sized bottled drinks. |
| 38x18 mm Aluminum ROPP Cap | The 38x18 mm Aluminum ROPP Cap is designed for larger bottle openings and is ideal for sealing large bottled beverages such as bottled water, beer, and wine. Its larger size not only ensures a perfect seal but also enhances tamper-proof properties, making it suitable for premium beverage packaging. |
| 31.5x18 mm Aluminum ROPP Cap | The 31.5x18 mm Aluminum ROPP Cap is an ideal choice for standard beverage bottles, widely used for water, beer, soft drinks, and other common beverages. This cap fits a variety of standard bottle types, providing reliable sealing and also featuring a tamper-proof design. It is commonly found in various bottled beverages on the market. |
Aluminum ROPP Cap Features
Tamper-Proof Function
The ROPP cap uses advanced rolling technology to form a unique closure during installation, making it impossible to reseal the cap once opened. This design effectively prevents tampering or resealing of the cap, providing strong anti-counterfeit protection for consumers. Whether for food, beverages, or alcoholic products, the ROPP cap ensures product safety and authenticity, enhancing consumer trust.
Sealing Performance
The Aluminum ROPP Cap offers excellent sealing performance due to its precise design and strict manufacturing process. This sealing capability ensures that the contents of the product remain fresh during transportation and storage. The seal not only prevents leakage but also effectively blocks external gases, moisture, and contaminants, thereby extending the product's shelf life. It is particularly suitable for liquid food and beverages that require high freshness, such as mineral water, juice, beer, and soft drinks.
Strong Adaptability
The Aluminum ROPP Cap is highly adaptable and can fit various types of bottles, such as glass bottles, PET bottles, and aluminum bottles. Whether for traditional glass-bottle beverages or modern lightweight PET bottle packaging, the ROPP cap provides a perfect seal. Furthermore, its design meets the demands of different markets, ranging from everyday consumer products to high-end spirits. With a variety of specifications and color options, it can fulfill the personalized needs of different products, providing flexible solutions.
Aluminum ROPP Cap Liners
Caps can be equipped with different liner materials according to needs, such as foam liners and EPE (expanded polyethylene) liners, which help enhance sealing and prevent leakage.
- Foam: Provides basic sealing performance, suitable for general beverages and foods.
- EPE (Expanded Polyethylene): Offers better softness and leak resistance, suitable for high-value liquid products such as wine, spirits, etc.
Aluminum ROPP Cap Surface Treatments
| Surface Treatment | Description |
| Printed ROPP Cap | Through customized printing technology, brand logos, text, or other designs can be printed on the surface of the cap. This treatment method helps increase brand exposure, improve market recognition, and ensures that the printed design does not fade over time, maintaining a lasting visual effect. |
| Colored ROPP Cap | A variety of color options are available, such as black, blue, gold, red, silver, white, and yellow. Colored caps can attract consumer attention, enhance product recognition, and different colors can convey different brand images and product positioning. |
| Aluminum Embossed Anti-Counterfeit Cap | Using embossing technology, unique anti-counterfeit marks are created on the surface of the cap to prevent counterfeiting. This surface treatment provides additional security protection for high-end products, especially for markets requiring high anti-counterfeit standards, such as alcoholic beverages and pharmaceuticals. The anti-counterfeit effect enhances consumer trust in the brand. |
Aluminum ROPP Cap Applications
| Application | Description |
| Bottled Mineral Water and Natural Water | Aluminum ROPP Cap is widely used in bottled mineral and natural water to ensure that the water source remains free from external contamination. The cap provides excellent sealing performance, effectively maintaining the water's cleanliness and freshness, preventing air, dust, or other contaminants from entering the bottle, ensuring the safety of the water quality and consumer health. |
| Soft Drink Bottles | For soft drink bottles, such as carbonated drinks and juices, the Aluminum ROPP Cap provides sealing protection to prevent the drink from being contaminated or leaking due to external factors. Its superior sealing performance helps the beverage maintain freshness for an extended period, ensuring stable taste and quality. |
| Beer Bottles | When used on beer bottles, the Aluminum ROPP Cap provides a strong seal, preventing air from entering and ensuring the freshness and taste of the beer. Its anti-counterfeit feature also offers consumers added trust, ensuring that the beer bottle has not been tampered with. |
| Wine and Red Wine Bottles | In wine and red wine bottles, the Aluminum ROPP Cap effectively prevents air from entering the bottle, preserving the quality and flavor of the wine. It can extend the shelf life of the wine, prevent oxidation, and provide comprehensive protection for the delicate taste and quality of the wine. |
| Cooking Oil Bottles | In cooking oil bottles, the Aluminum ROPP Cap features excellent tamper-evident functionality, ensuring the purity of the oil. The cap effectively prevents the oil from being exposed to air, reducing contamination, and preventing unauthorized opening of the container, ensuring that the product purchased by consumers meets quality standards. |
| Spirits and Wine Bottles | For spirits and premium wine bottles, the Aluminum ROPP Cap not only provides tamper-evident functionality but also features anti-counterfeit properties. Through unique design and materials, it ensures the bottle has not been tampered with, providing professional security protection for high-end beverages and enhancing the brand's reputation. |
| Vinegar Bottles | The Aluminum ROPP Cap is also suitable for vinegar bottles, ensuring that the liquid inside the bottle remains untampered with, preserving the purity of the vinegar. Its strong sealing properties effectively prevent the vinegar from coming into contact with external air, reducing the loss of volatile components and maintaining the product's quality and freshness. |
| Other Liquid Containers | Aluminum ROPP Cap is widely used in other liquid containers such as olive oil bottles, vodka bottles, rum bottles, etc. These caps provide ideal sealing protection for various liquids and prevent the bottle from being tampered with, ensuring the quality and safety of the product contents. |
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