PET Blow Molding Machines
Semi-automatic, automatic, and variable-pitch PET stretch blow molding machines for 200 mL to 2 L bottles. Each machine type is reviewed for compatibility with your bottle design, preform specification, and production volume requirements.
Why PET Blow Molding
PET blow molding is the bottle-forming stage in the beverage production line. PET preforms are heated and stretch-blow-molded into finished bottle shapes inside a mold cavity. The machine type — semi-automatic, automatic, or variable-pitch — determines production speed, bottle size range, and automation level. Each configuration is specified based on your target production volume, bottle design, and preform specifications.
PET Blow Molding Machine Types
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Automatic PET Blow Molding Machine
High-speed rotary blow molder for automated bottle production. Configurable cavity count for various production volume requirements. Suitable for consistent high-volume runs.
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Semi-Automatic PET Stretch Blow Moulder
Manual preform loading and bottle discharge with automatic heating and blowing cycle. Ideal for startups, smaller production runs, and multi-SKU bottle changeovers.
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Variable Pitch PET Blow Molding Machine
Automatic blow molder with adjustable pitch for flexible bottle size changeovers. Suitable for medium-volume production with frequent format changes.
View Machine →Supporting Solutions
Beyond blow molding machines, iBottling offers consulting solutions to optimize your bottle design, reduce material usage, and meet sustainability targets.
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Packaging Design & rPET
Bottle design and rPET integration consulting. Preform neck finish design, bottle lightweighting, and recycled PET material compatibility.
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PET Bottle Lightweighting
Gram-weight reduction consulting for PET bottles. Topline optimization, material savings, and bottle geometry improvements without compromising performance.
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rPET Compatible Solutions
Integration of post-consumer recycled PET material into bottle production. Formulation guidance and compatibility verification for rPET blends.
Learn More →Blow Molding Machine Selection Guide
Choose the right blow molding machine based on your production requirements, bottle design, and investment plan.
| Selection Factor | Semi-Automatic | Automatic | Variable-Pitch |
|---|---|---|---|
| Production volume | Specified based on production requirements | Volume-dependent — reviewed during specification | Volume-dependent — reviewed during specification |
| Automation level | Semi-auto (manual load/unload) | Full automatic | Full automatic |
| Bottle changeover | Fast (mechanical mold swap) | Moderate (requires adjustment) | Fast (adjustable pitch) |
| Best suited for | Startups, small batches, multi-SKU | High-volume, single-SKU, continuous production | Medium-volume, multi-format production |
| Bottle size range | 200 mL – 2 L | 200 mL – 2 L | 200 mL – 2 L |
| Operator requirement | 1–2 operators | 1 operator for monitoring | 1 operator for monitoring |
Applications
PET blow molding machines from iBottling are used across a wide range of beverage and liquid packaging applications.
| Application | Typical Bottle Sizes | Recommended Machine Type |
|---|---|---|
| Bottled Water | 330 mL – 1.5 L | Automatic or semi-automatic |
| Carbonated Soft Drinks | 250 mL – 2 L | Automatic (carbonation-rated preform) |
| Juices & Functional Beverages | 300 mL – 1 L | Automatic or variable-pitch |
| Edible Oils & Liquid Food | 500 mL – 2 L | Semi-automatic or automatic |
| Dairy & Isotonic Drinks | 250 mL – 1 L | Automatic or variable-pitch |
Frequently Asked Questions
What types of PET blow molding machines does iBottling offer?
iBottling offers three types of PET blow molding machines: semi-automatic stretch blow molders for small to medium production, fully automatic rotary blow molders for high-volume continuous production, and variable-pitch automatic blow molders for flexible medium-volume production with frequent bottle format changes. Each type is designed for PET preforms with PCO 1810, PCO 1881, 29/25, and 38mm neck finishes.
How do I choose between semi-automatic and automatic blow molding?
Semi-automatic machines are typically specified for smaller to medium production volumes, smaller budgets, and operations requiring frequent bottle size changeovers. Automatic machines are commonly specified for higher production volumes where consistent cycle times, reduced labor requirements, and higher throughput justify the investment. The appropriate choice depends on production targets, bottle format consistency, preform supply, and available operator skill level. The choice also depends on bottle format consistency, preform supply, and available operator skill level.
What bottle sizes and neck finishes are supported?
All three machine types can be configured for bottle sizes from 200 mL to 2 L with commonly used neck finishes including PCO 1810, PCO 1881, 29/25, and 38mm. Custom neck finishes can be accommodated with corresponding preform specifications. Bottle shape is determined by the mold cavity design, which is manufactured according to your bottle drawing or sample.
What preform specifications are compatible with these machines?
Preform specifications must be matched to the blow molder’s heating system, neck finish holder, and cavity design. Key parameters include preform weight (typically 9g–52g), neck finish type, overall length, and material grade (bottle-grade PET). Our team reviews your preform specification against the selected machine configuration during project review.
Can blow molding machines be integrated with filling and labeling equipment?
Yes. iBottling blow molding machines are designed for integration with upstream and downstream equipment. The blow molder output can be linked directly to filling machines via conveyor systems. Neck finish and bottle dimensions are coordinated with capper and labeler specifications during project review to ensure seamless line integration.
What is the lead time and installation process for blow molding machines?
Lead time varies by machine type and configuration. Lead time varies by machine type and configuration. Recommended delivery timing is confirmed during project review based on current production schedule, cavity configuration, and customization requirements. Installation support includes documentation, remote commissioning guidance, and optional on-site engineering visits.
Ready to Select Your Blow Molding Machine?
Describe your production requirements, bottle format, and target capacity. Our team will recommend the right machine configuration.
