PT ZONE: Stretch Blow Molding

PT Article Machinery Innovator Dewey Rainville Dies at 91
Developed numerous technologies in blow molding; involved in start-ups of leading auxiliary equipment firms. More (+)
BLOW MOLDING: The Latest for PET: Injection-Compression-Stretch-Blowing
SIPA of Italy (U.S. office in Atlanta) has launched Xtreme Syncro, billed as the world’s first injection-compression-stretch-blow molding (ICSBM) system. More (+)

MOST RECENT CONTENT: Stretch Blow Molding

SIPA Acquires Automa PET Bottle Machine Line

SIPA adds rotary single-stage machines to its arsenal.

First Hot-Fill PET Jar With Metal Lug Closure

Amcor wins the race to give PET pasta-sauce jars that satisfying "pop" on opening.

Something New for PET: Injection-Compression-Stretch-Blow Molding

Continuous, rotary injection-compression molding of preforms is linked to rotary stretch-blow molding.

Amcor Wins Race for Hot-Fill PET with Metal Lug Closure

Consumers get the reassuring "pop" of freshness without the weight and fragility of glass.

How to Address Uneven Wall Thickness in Stretch-Blow Molding

Many conditions must be met to get the best wall distribution in a PET bottle. Skilled operators are, as always, indispensable.

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Stretch Blow Molding


Stretch blow molding is the common method for producing soda bottles. The process begins with an injection molded perform. The perform is typically pre-heated then stretched in the axial direction and blown into its final shape by a stretch blow molding machine.

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