How Are Plastic Caps Manufactured?

How are plastic caps manufactured?
The manufacture of bottle caps is a complex and highly technical process that involves many different components. The most popular manufacturing method for bottle caps is injection moulding, which uses thermoplastic polymer pellets to form the final product.

Injection molding is extremely cost efficient for large production runs and exhibits high repeatability. This means there are rarely any variations in size, shape, or surface polish between caps made from the same mold.

Another advantage of injection moulding is that it adheres to incredibly tight tolerances, which can be vital when threading is involved. Additionally, the moulds used support high degrees of detail and make it easy to add high quality embossing.

There are many different types of cap produced by manufacturers, including child-resistant, tamper-evident, and flip tops. These caps are used in a variety of industries and have different functions.

Exterior Plastic Caps
The most common type of cap is the exterior plastic cap, which is designed to secure ends or apertures in shipping tubes. These caps can be threaded or unthreaded and come in a wide range of diameters to meet all requirements.

Pull Tab Caps
A pull tab cap is a cap that has a long tab at the center of the top, making it simple to remove from the threads it guards. This is a useful feature because it allows the cap to be removed with a finger, which can save time and money on tools.