Comparing Extrusion Blow Moulding and Injection Blow Moulding

The main purpose of plastic bottles and plastic containers is that they are used for filling various fluids in these bottles. Do you know how exactly the production of such high-quality products goes? It’s quite interesting! In fact, there are two major types of methods on how to make plastic bottles: extrusion blow moulding and injection blow moulding. Every method has a distinct way of doing it, and different techniques are used to shape the plastic. 

Injection Blow vs. Extrusion Blow Moulding

Extrusion blow moulding and injection blow moulding may sound very similar in name, however they are completely different. The method we use to make hollow things like plastic bottles is extrusion blow moulding. Contrastingly, injection blow moulding machine serves the purpose for smaller complex and intricate items such as medical tools and equipment. Providing a basic general explanation of these differences is important because it allows us to understand the types of products that each method can process. 

How Each Method Works? 

So, it varies and we will see how exactly those methods work up close. E. g. a soft tube of molten plastic is generated in extrusion Blow Molding Machine. The tube is placed between two moulds, which are basically those special shapes that we wish the plastic to take. Next the tube is filled with air. Then, the air inflates the tube -evoking a balloon- and this fills up shape moulds. When the plastic enters the series of moulds, it assumes the shape of them necessarily final product. 

Anyway, let us discuss injection blow moulding. This process initiated by creating a little bit of plastic called a preform. The preform is then heated so it becomes pliable, allowing it to be molded. The soft preform is then inserted into a mould and shaped to form a bottle or any other small unit. Not only does this method offer greater control over shaping, the process is also far more consistent and repeatable than extrusion blow moulding. 

Which Method is Better? 

As already noted both methods have their pros and cons, so it really depends on what you are trying to make. The process of extrusion blow moulding is great for producing numerous identical products rapidly. This is quick and can provide a lot of goods in shift. Nevertheless, it is not as accurate as injection blow molding machine being that it may possibly not be fantastic for intricate detail items. 

For creating small and complex products, injection blow moulding is the most suitable process to choose. This way the design has more room for details which is very essential especially on equipment like medical. It takes longer than an extrusion blow moulding process but if you are making many products that is far from ideal. 

Comparing the Two Methods

Looking at both the techniques we can say that extrusion blow moulding are beneficial to create different types of plastic bottles, jugs, and containers in a very effective manner. These are created rapidly, but by automatically generating many almost-indistinguishable elements of the same shape and size. In contrast, extrusion blow moulding is optimal for small sized precision jobs such as medical tools, syringe barrels and medicine bottles. It causes less wastage and can produce complex design as compared to simple designs in chromo jet printing. 

Looking at the Pros and Cons

What are the advantages and disadvantages of each approach? It also uses more energy to heat the plastic in extrusion blow moulding and form the prison. Additionally, more of the parts may be wasted due to the extra bits that must be cut away after moulding. Injection also consumes more energy in creating the preform; however, it requires a small quantity of energy when compared to stretch blow moulding process itself. Moreover, there is less use of material as the shape of the preform almost resembles that of final product. 

A Comparison of the Two Methods

Despite the many differences between extrusion blow moulding and injection blow moulding, they also share some commonalities. These are two methods can be used to form plastic bottles and containers, they have wide applications in the industry. Also, both of two processes can be done with various kinds of plastics to give manufacturers more choices to select the right material for their products. 

Feige Youlian Machinery   

So if you are searching for best quality blow molding machines, then Feige Youlian Machinery would be the perfect place for you. We offer machines with both extrusion and injection blow moulding. We realize the significance of top-notch products. Which is why we provide machines that enables our consumers to produce required products on time and with utmost quality. Our robot machines need to be able to support a wide range of manufacturing requirements in order for our customers to use them and achieve their production goals. 

Conclusion

In short, extrusion and injection blow moulding are two different ways to make plastic products. Both methods have their pros and cons. The approach you choose will depend on the kind of object you want to create, and to what level of detail. Both of those methods have Feige Youlian Machinery quality machines and both of them let clients choose the way that is best for them but still ensures that they can produce professional items.