From Food to Medicines: ROPP Capping Machine Applications Across Industries

As one kind of bottle closure, ROPP caps (Full name is “Roll on pilfer proof caps) are primarily made from aluminum. Because aluminum has the properties of being soft and malleable, ROPP caps are initially smooth aluminum sleeve. When they are sealed onto bottles, they will be threaded by rollers of ROPP capping machines, making them conform to the threads and ridges of bottlenecks. The bottom part of ROPP caps can offer tamper-proof seal to products. Therefore, they are popular in pharmaceutical, food, beverage and personal care industries.

What Are ROPP Capping Machines?

ROPP capper, also called ROPP cap sealing machine, is an equipment that can apply downward pressure to ROPP caps to make them fit to the bottlenecks. In short, they are designed for sealing bottles with pilfer-proof aluminum caps. Since a large amount of pressure is required while forming the threads, the bottleneck and threads of bottles should be rigid enough. ROPP capping machines are available in various types, ranging from high speed rotary cappers to linear ROPP cappers. One of the advantages of ROPP capper is that it can provide products with tamper-evident security during capping process.

How Does An Automatic ROPP Capping Machine Run?

Operation of a high speed automatic ROPP Capper:

The running process of automatic ROPP capper machines includes several steps:

1. Bottle Inlet: Bottles will usually be fed and separated by screw feeder, and then they will be transported to cap loading area by conveyor.
2. Cap Loading: ROPP caps will be fed by vibratory bowl and placed onto bottlenecks.
3. Capping Head Engagement: Capping head will move down to press caps to bottles.
4. Roller Spinning: Rollers of capping head will spin around the aluminum shell to make the caps formed around the threads of bottleneck.
5. Product Outlet: Bottles will be conveyed to next production process after sealing.

These steps will be finished automatically. They are designed for high-speed and high-accuracy operations, which ensures the consistency of different batches.

What Are The Types Of ROPP Capping Machines?

• ZS-XG440C4 High-Speed Rotary ROPP Capping Machine — Using starwheels to convey bottles, the machine can realize continuous motions of cap loading and screwing. It is designed with 4 capping heads, which can reach at high output of 4500BPH. The capping machine can also be customized with 1/2/6/8/10 capping heads according to customers’ production need.

• ZS-XG440Z Inline ROPP Capper — Compared with rotary ROPP cappers, this machine uses straight conveyor belt to transport bottles, rather than starwheels. It has the advantage that it can be easily adjusted to suit for different sizes of containers. What’s more, the machine can be integrated into production line if needed.

What Are Advantages Of Using Automatic ROPP Capping Machines?

• Tight And Tamper-Evident Sealing: The rollers of its capping head can rotate and apply pressure to ROPP caps to make them create tight sealing on bottlenecks. This can reduce the risk of contamination or product spoilage, as well as indicate if the products has been opened previously.
• Flexibility And Adaptability: The ROPP cappers can adapt to bottles of different sizes, shapes and materials. They can also be customized according to different packaging needs. This feature makes them suit for various industries, such as pharmaceutical, personal care, beverage industries.
• High Output: Designed for high-speed operation, ROPP capping machines are ideal for mass production. They can usually be equipped with multiple capping heads, which can seal multi bottles at the same time. This makes it beneficial for increasing production output.
• Easy Integration: The automatic machines can seamlessly integrated with other equipment, so as to maintain stable and efficient packaging. This is beneficial for optimizing labor.

Example Of ROPP Capping Machine Integrated In Production Line: