Injection Molding Vs Blow Molding: Important Facts that You Should Know

pvc molding machine

Moulding is the process of manufacturing by shaping liquid or pliable raw materials. These usually include plastic, glass, ceramic, and metals. The manufacturers use a rigid frame called mold or matrix in this process. The main aim of the molding process is to reproduce multiple uniform copies of the final product. There are innumerable objects obtained as a result of molding processes that we use on a day-to-day basis. Both HDPE and PVC molding machines  have been in high demand and still continue to reign in the plastic industry. 

How Is Injection Molding Different From Blow Molding?

Blow Molding: Blow molding involves various technicalities and complex processes like injection, intrusion, and stretch. The essential feature of blow-molded products is that they are hollow from within. The cost-effectiveness of the blow molding process helps manufacturers produce billions of bottles. Apart from this, it can also produce  other industrial parts like  coolers, fuel tanks, and stadium seats.

Examples: water bottles, containers, watering cans, etc.

Injection Molding: If you want to manufacture products that have solid parts, injection molding is your go-to option. There are no hollow parts in the materials manufactured by injection molding. The injection molding process provides products at a faster rate. Thus it is advantageous for manufacturers who are looking for a high-output range. The desired products are highly flexible and can have a series of color schemes.

Examples: bottle caps, combs, housing parts, etc.

Types of Plastic Used in Blow and Injection Molding Machines:

  • PET( Polyethylene Terephthalate): This type of plastic finds use mainly in   manufacturing clear bottles.

  • PC (Polycarbonate): To make complex-shaped plastic bottles, PC is the best choice of plastic as it is very strong and clear.

  • PP(Polypropylene): Due to its stiffness, rigidity, and low density, PP is best for high-temperature applications.

  • PVC ( Polyvinyl chloride): It is most popular for  injection  plastic molding. It has excellent dimension stability, unique corrosive resistant quality, and highly economical material.

  • HDPE(High-Density Polyethylene): Due to its versatility, reliability, strength it finds application in blow molding processes.

Therefore, choose a trusted leader for availing quality blow and injection  molding machines at a reasonable price with a guarantee on the product. Also, keep in mind to ask for a demo before finally purchasing the product as this will help you know the working process of the model.

Priti International, a leading brand is a popular name in the manufacturing of molded products and machines. Their superior quality and cost-effective molded products are the best in the industry. If you are in search of HDPE molding machines, you should definitely give them a call. Also, all their machines are highly affordable.