Caps & Closures
ROPP Closures
Caps & Closures
ROPP Closures
ROPP caps are aluminium closures that are mechanically formed onto the bottle during the capping process. The capping head rolls the thread directly into the cap, ensuring a precise fit with the bottle neck. The result is a leak-proof, non-refillable closure with visible tamper-evidence.
Keizer International supplies aluminium ROPP caps in various sizes and designs, tailored to your product, bottle and filling process.
ROPP caps are available in a wide range of standard sizes, suitable for a variety of bottle necks:
Diameter: Ø 18 mm to Ø 43 mm
Height: 12 mm to 60 mm
Within this range, various combinations are possible, depending on the bottle neck, capping machine and desired appearance. A suitable size is available for almost every bottle neck.
Aluminium.
This material is ideally suited to this application due to its dimensional stability during the roll-forming process, its effective sealing when used with liners, its low weight and the fact that it is fully recyclable.
ROPP caps are highly customisable and help to enhance brand recognition and product positioning. Options include:
Colour schemes (matt, gloss, metallic)
Printing and logos
Various finishes and surfaces
Keizer International can advise you on making the right choices, taking into account appearance, technical feasibility and production volume.
Various liners are available for ROPP caps. Commonly used liners include:
EPE
Saranex
Tin Saran
Plastisol
ROPP caps are suitable for products where product safety, shelf life and tamper-evidence are important. They are used on bottles made of:
Glass
Plastic
Metal
Common applications include:
Alcoholic beverages
Non-alcoholic beverages and syrups
Oils and sauces
Cosmetics and personal care products
When combined with the correct insert, ROPP caps are suitable for processes such as:
Pasteurisation
Sterilisation
Hot fill
Non-refillable applications
In addition to ROPP caps, Keizer International also supplies matching bottles and advises on the complete packaging solution.