Injection Moulding Die: Definition, Usage, Benefits, Cost, and Components

2022.10.5

plastic die mould manufacturer

What is the injection moulding die process?

A moulding die is a tool used in the injection moulding process to create the desired shape of a component. There are two methods of making metal parts in this process – moulding and die. In moulding, the metal is heated until it is molten and then poured into a mould. And in the die, the metal is placed under immense pressure until it takes the shape of the die. A moulding dies machine carries out both processes.

 

The difference between moulding and die

Moulds are typically used to create products that are made out of softer materials, such as plastic or glass. On the other hand, dies are used to create products that are made out of harder materials, such as metal and automobile parts.

Moulds are also generally cheaper and easier to produce than dies. However, dies can be reused multiple times, while moulds typically need to be replaced after each use.

 

The Use of Moulding Die Machines

A moulding die is one of the biggest assets different companies have. Its domain isn’t limited to only a few industries, and almost every manufacturer can use this machine. The benefit of using a plastic mould die is that it lets you create complex parts and materials in bulk form. And that is basically why a moulding die is used.

Components of a moulding die machine

If we talk about what an injection mould die tool looks like, it is a small metal plate with holes in it. The die is the critical component in the injection moulding process, as it determines the shape and size of the part. A die is typically made from steel or aluminum and is precision-machined to meet the part’s specifications.

 

The material that you want to create the part out of goes into a hopper or vat of molten plastic and is injected into the die. Once the part has been created, it can be removed from the die and milled down if needed.

Plastic Moulding Die Cost

The cost of an injection moulding die can vary depending on a number of factors, such as the size and complexity of the die, the material you are using, and the quantity you need. You can generally expect to pay anywhere from a few hundred dollars to several thousand dollars for a moulding die. You can get high-quality injection mould die machines from EX Mould Ltd at affordable rates.

There are a few different types of plastic moulding dies available for purchase, so you can choose the one that best fits your needs. It depends on what you want to manufacture.

The Process of Moulding Die Machine

These machines are made up of several components, including the injection nozzle, injection chamber, heating unit, and winding unit. The injection nozzle is where the plastic material is injected into the injection chamber. Heating causes the plastic to melt, which then flows through the injection nozzle and into the mold cavity. The heating unit helps control the temperature at which the plastic becomes molten and allows it to flow through the injection nozzle and into the mold cavity. It also prevents molten plastic from hardening before it enters the chamber.

 

How to make an injection moulding die?

In order to make injection molding die, you will need a few things:

 

A mold: This is the negative of the desired shape. It can be made of metal, ceramic, or even 3D-printed.

 

Plastic pellets: These are small pieces of plastic that will be melted and injected into the mold.

An injection molding machine: This machine will heat the plastic pellets and inject them into the mold.

 

A cooling system: This is necessary to cool the mold and solidify the plastic.


The injection moulding die is a critical component in the injection moulding process and must be designed and manufactured to precise tolerances. Injection molding machines can be automated or manually operated depending on the production needs of the company. In order to produce high-quality components, the die must be able to withstand the high temperatures and pressures of the injection moulding process. Injection moulding is a versatile manufacturing process that can be used to create a wide variety of parts and components. With the right die, almost any shape can be achieved. To ensure this you need to buy it from quality plastic moulding die makers. Ex Mould Ltd. is one of the best plastic die mould manufacturers.

 

Read more industry related articles.