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what is injection stretch blow molding machine?

Time:2022-12-25 18:53:18 Author:China Haijiang Clicks:

Injection stretch blow molding (ISBM) is a manufacturing process that is used to produce a wide range of plastic products, including bottles, jars, and other containers. An injection stretch blow molding machine is a specialized machine that is designed specifically for this process.

The ISBM process involves three main steps: injection, stretching, and blowing. During the injection step, molten plastic is injected into a mold to create a preform, which is a small, hollow plastic part. The preform is then cooled and removed from the mold.

During the stretching step, the preform is placed into a separate mold and heated until it is soft and pliable. It is then stretched using a series of rods or pins to achieve the desired shape and size.

During the blowing step, the stretched preform is placed into a blow mold and pressurized air is used to blow the preform out to the shape of the mold. The final product is a hollow, fully formed plastic bottle or container.

Injection stretch blow molding machines are highly specialized machines that are designed to produce high-quality plastic bottles and containers using the ISBM process. They offer a number of benefits, including fast cycle times, high production rates, and low scrap rates, which make them an ideal choice for a wide range of applications.


ISBM stands for "injection stretch blow molding." It is a manufacturing process that is used to produce a wide range of plastic products, including bottles, jars, and other containers.

The ISBM process involves three main steps: injection, stretching, and blowing. During the injection step, molten plastic is injected into a mold to create a preform, which is a small, hollow plastic part. The preform is then cooled and removed from the mold.

During the stretching step, the preform is placed into a separate mold and heated until it is soft and pliable. It is then stretched using a series of rods or pins to achieve the desired shape and size.

During the blowing step, the stretched preform is placed into a blow mold and pressurized air is used to blow the preform out to the shape of the mold. The final product is a hollow, fully formed plastic bottle or container.

ISBM is a highly efficient and cost-effective process that is widely used in the production of plastic bottles and other containers. It offers a number of benefits, including fast cycle times, high production rates, and low scrap rates, which make it an ideal choice for a wide range of applications.