In the plastic processing industry, Bottle Blowing Machines and extrusion blow Molding machines are two common and important equipment. Although they have similar names, they have significant differences in application and operating principles. This article will explore the differences between the two equipment in detail to help professionals and potential buyers in the industry better understand and choose equipment that suits their production needs.

Definition and application of bottle blowing machine

bottle blowing machines are mainly used to produce hollow plastic products. The most common applications include various plastic bottles and containers, such as beverage bottles, pharmaceutical bottles, and cosmetic bottles. The working principle of the blow molding machine is to put the heated and softened plastic parison (preform) into the mold and blow it into a hollow product of the desired shape through high-pressure air.

Main features of blow molding machine:

1. Efficient production: bottle blowing machines are capable of high-speed and large-scale production, especially suitable for the daily consumer goods industry.

2. Precision molding: Due to the use of high-pressure air, the product wall thickness is uniform and the finished product has high precision.

3. Applicable to a variety of materials: bottle blowing machines can handle a variety of thermoplastics, such as PET, PE and PP.

Definition and Application of Extrusion Blow Molding Machine

Extrusion blow molding machines are mainly used to manufacture larger and more complex hollow plastic products, such as fuel tanks, toys, automotive parts and industrial containers. The operating principle of the blow molding machine is to heat and melt the plastic raw materials, extrude the molding tube through the extruder, and then clamp it into the mold and blow it into shape.

Main features of blow molding machine:

1. Suitable for large products: Extrusion blow molding machines can produce hollow products with large sizes and complex structures.

2. Strong versatility: suitable for hollow products of various shapes, and can add a variety of functional designs such as handles, threads and complex geometric shapes during the production process.

3. Wide range of materials: can handle a variety of types of plastic materials, including HDPE, PVC and PC.

Comparison between blow molding machine and blow molding machine

1. Different uses: bottle blowing machines are mainly used to produce various bottle containers, while Extrusion blow molding machines are suitable for manufacturing larger and more complex hollow products.

2. Molding process: bottle blowing machines rely on high-pressure air to blow plastic parisons, while extrusion blow molding machines extrude molding tubes and then blow them into shape.

3. Production scale: bottle blowing machines are usually used for large-scale, high-speed production, while extrusion blow molding machines are suitable for smaller batches and diversified production needs.

Understanding the difference between bottle blowing machines and extrusion blow molding machines can help companies make more informed decisions in equipment selection and production planning. With the continuous development of plastic processing technology, the application of these two types of equipment in the industry will become increasingly extensive and in-depth. I hope this article can provide you with valuable information and help you achieve greater success in production.