46 mm ROPP Aluminum Cap

The 46 mm aluminum ROPP cap is ideal for sealing medium-sized bottles (such as wine, spirits, and syrup), offering chemical compatibility, strong tamper-evidence, resealability, and customizable branding—all delivered with reliable manufacturing quality at scale.

The 46 mm ROPP aluminum cap is a tamper-evident aluminum closure with a diameter of 46 mm, specifically designed to seal bottles and containers, ensuring it cannot be restored once opened, providing anti-counterfeit protection and sealing integrity.

ROPP aluminum caps (Roll-On Pilfer-Proof Caps) are made from aluminum material and cannot be restored once opened, preventing malicious access or counterfeiting. They feature the advantages of being lightweight, high-strength, and corrosion-resistant. The surface can be treated in various colors (such as gray or silver), and anti-counterfeit coatings can be added as needed. The structure includes an inner adhesive layer and an outer aluminum layer to ensure tight bonding with the bottle mouth, preventing leakage and oxidation.

The 46 mm diameter fits standard bottle mouths (such as glass bottles, aluminum cans, tin cans, or paper cans), and is commonly used in beverage, food, or pharmaceutical packaging.

Function: Provides easy-tear or easy-pull opening mechanisms (such as aluminum foil tear-off caps), allowing users to open quickly while maintaining tamper-evident performance.

46 mm ROPP Aluminum Cap Specifications

Feature	Specification
Material	Aluminum body + polymer liner
Closure type	Roll-On Pilfer-Proof with tamper band
Applications	Beverages, pharmaceuticals, food stuffs
Customization	Color, print, lacquer, embossing
Production speed	Up to ~2, 500 caps/min; high automation

46 mm ROPP Aluminum Cap Product Details

ID (A) Max: 46.2
ID (A) Min: 45.7
OD (B) Max: 46.7
OD (B) Min: 46.2
Height (C) Max: 16.6
Height (C) Min: 15.8

46 mm ROPP Aluminum Cap Material and Structure

Cap Body: Made of aluminum—lightweight, corrosion-resistant, and non-reactive with various liquids
Liner: Equipped with a polymer liner (such as foam polystyrene or PE/Saranex) to ensure a tight, leak-proof seal

46 mm ROPP Aluminum Cap Functional Features

Roll-on sealing: Installed using a roller device that cold-presses the cap onto glass bottles (sometimes plastic bottles), forming threads inside the aluminum body
Tamper-evident and anti-counterfeit: Irreversible once opened, effectively preventing tampering or forgery
Resealability: Various designs allow the cap to be resealed after opening, enhancing user convenience

46 mm ROPP Aluminum Cap Applications

Wide Application: Commonly used for sealing beverage bottles, liquor bottles, pharmaceutical containers, and cosmetic jars

Beverages: Wine, beer, water, soft drinks, energy drinks
Pharmaceuticals: Syrups and liquid medications, using chemically inert liners
Food and specialty products: Coffee, sauces, condiments, chemicals

Customization and Aesthetics

Visual Options: Available in standard or custom-printed colors; can include lacquer coatings, embossed logos, and customized designs Surface Finishes: Smooth, painted, or textured options available to match branding needs

Through its structural design and material properties, the 46 mm ROPP aluminum cap offers an efficient and secure sealing solution in the packaging industry.

The following bottle caps may interest you