There are a number of different types of cap moulds

Cap molds, which are used in the manufacturing of caps for bottles and containers, come in various types depending on factors such as the shape and size of the cap, the production volume, and the molding process employed. Here are some common types of cap molds:

1. Compression Molds: These molds are used for manufacturing caps by compressing heated plastic material into the desired shape. Compression molds are often used for lower-volume production runs or for specialty caps.

2. Injection Molds: Injection molding is one of the most common methods for producing caps in high volumes. Injection molds use molten plastic injected into a mold cavity under high pressure. After cooling and solidification, the mold opens, and the finished cap is ejected.

3. Hot Runner Molds: In hot runner molds, the plastic material is kept molten within the mold's runner system, which helps reduce cycle times and material waste. Hot runner molds are popular for high-volume production of caps where rapid production is crucial.

4. Cold Runner Molds: Cold runner molds have a runner system that remains at ambient temperature, which means that the plastic material in the runner must be ejected and recycled with each cycle. These molds are often used for lower-volume production or when material waste is not a significant concern.

5. Multi-Cavity Molds: These molds have multiple cavities, allowing for the simultaneous production of multiple caps in each molding cycle. Multi-cavity molds increase production efficiency and are commonly used in high-volume manufacturing.

6. Unscrewing Molds: These molds are designed to produce caps with threaded components, such as screw caps. They incorporate mechanisms to unscrew the cap from the mold core after molding, ensuring precise thread formation.

7. Stack Molds: Stack molds consist of multiple mold layers stacked on top of each other. They enable the production of double the number of caps per cycle compared to single-face molds, thus doubling the production output.

8. Rotational Molds: Rotational molding, also known as rotomolding, is a process where the mold is rotated while heated, causing the plastic material to evenly coat the inside of the mold cavity. This method is suitable for producing large, hollow caps with complex shapes.