What are blow moulds and what is their application?

Blow moulds are tools employed under the process of manufacturing plastic products, such as bottles or packaging. The popularity of this technology within the industry is constantly growing, owing to its numerous advantages. These include material and energy saving, as well as the capability to create precise and durable products. This article takes a closer look at this innovative approach to plastic product manufacturing and discusses its primary applications.

Blow moulding process

Blow moulding is a plastics machining technique that involves injecting a heated material into a mould, followed by blowing air, which results in the plastic expanding and taking the shape of the mould. This process comprises several stages, such as raw material preparation, heating, injecting into a mould, blowing and cooling. This enables obtaining various product shapes and sizes, which makes blow moulding a flexible manufacturing method.

Blow mould types

Depending on manufacturing needs and requirements, there are several distinguishable blow moulds manufactured in tool rooms. The most popular ones are one-piece, two-piece and multi-piece moulds. One-piece moulds are primarily employed in the manufacturing of simple, small-size products, such as capsules or small packaging. Two-piece moulds enable obtaining more complex shapes, such as bottles with caps or tubes. Whereas multi-piece moulds are used to manufacture large-size and complex-shaped products, such as tanks or automotive components.

Industrial application of blow moulds

Blow moulding offered by NOEX, a manufacturer of plastic products, finds numerous applications in various industry segments, and its popularity continues to grow. One of the main fields of this technology’s application is packaging manufacturing, PET bottles in particular, as well as other plastic beverage, food or cosmetic containers. Blow moulds are also employed by the automotive industry in manufacturing automotive components, such as fuel tanks or engine covers. Other industries where blow moulding is popular include medicine (e.g., drug packaging), construction (e.g., sewer pipes) or electronics (e.g., appliance casings).