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pre expander

If you have ever slept on a foam mattress or soft cushion, perhaps you know then that they are made up of lots and losts of tiny bubbles with air inside. It is these small bubbles that give foam its soft and fluffy texture, which in turn makes us so comfortable to sit or lie. Ever wonder how those little bubbles are created? What about the unique processes that turn raw foam, into shapes? Fortunately, a pre expander machine takes care of that!

The pre expander is a machine helps produce foam, it simply changes those small plastic beads into bigger pieces. Little plastic beads (sometimes referred to as eggs, pellets or granules) How it works is this: the plastic bead enters a pre expander machine. The machine is then turned on and steam is released, which causes the beads to expand as they become larger. Such process is called pre-expansion. That's crucial as it will combine smooth, even foam with great texture.

How a pre expander can improve foam production

There are a number of key ways that using a pre expander allow you to make better foam. For one, it helps in creating stronger and longer-lasting foam which is more homogenous. A foam that is stableair moulding in nature would not tend to break or lose shape with the passage of time, and so on. Second, it allows for lighter foam (done through a pre expander). This translates into using less plastic in order to generate the same amount of foam — and that equals cost savings. Manufacturers rely on keeping their prices economical so making foam in a way that cost less is important.

Why choose zhongji pre expander?

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