Baby Bottle & PP Bottle Series Blow Molding Machines

Automatic PET & PP baby bottle blow molding machines. 7 models, 1–4 cavities, 114.3 mm wide-neck, 300–2,000 bph. BPA-free, no-hand-contact, GMP compatible. PET/PP dual-material. CE certified.

PET & PP Blow Molding Expert · Baby Bottle & PP Bottle Series Guide

Baby Bottle & PP Bottle Series
Blow Molding Machines — Complete Model Guide

7 models across AS, FS, and JS series — two-step automatic stretch blow molding machines purpose-engineered for baby bottles, infant feeding bottles, and wide-neck PP containers. Processing both PET/PP (AS series) and PP-only (FS and JS series), with 114.3 mm wide-neck capability for standard infant bottle formats. Precision AS-grade servo drive ensures the dimensional accuracy required for consistent teat-collar engagement and airtight seal across all production positions. A performance-matched, cost-effective alternative to Sidel, Krones, SMI, and Sipa platforms.
► 1 – 4 Cavities
► Up to 350 ml
► 300 – 2,000 bph
► 114.3 mm Wide Neck
► PET / PP Compatible
► CE Certified

baby bottle PP bottle series blow molding machine infant feeding bottle wide neck PET PP

1. Product Overview

The Baby Bottle & PP Bottle Series Blow Molding Machines comprise 7 models across the AS, FS, and JS sub-series, purpose-built for the highly demanding dimensional accuracy, material safety, and surface quality requirements of infant feeding bottle production. All models produce wide-neck containers with the industry-standard 114.3 mm neck diameter used across the global baby bottle market — compatible with the universal teat-collar systems of major infant feeding brands — as well as narrower 76.2 mm formats for smaller-capacity feeding accessories.

The series spans three architectures targeting distinct aspects of the baby bottle market. The AS series (1, 2, and 4 cavity) processes both PET and PP on the same machine — enabling manufacturers to run crystal-clear PET bottles for retail visibility alongside heat-sterilisation-resistant PP bottles for clinical and premium segments without investing in separate machines. The FS series (PP-only) provides dedicated PP baby bottle production with a standard format (FS-1C114.3) and a wide-neck neck-protection variant (FS-1CG114.3). The JS series (PP-only) offers an alternative PP platform with 1-cavity and 2-cavity configurations.

All models prioritise no-hand-contact production and AS-grade servo precision — the two requirements that make baby bottle production technically distinct from standard packaging blow molding. Infant feeding bottles must maintain teat-collar seating geometry within tolerances tighter than most adult packaging closures, and must be produced without contamination risk to the inner surface, which contacts formula or expressed milk directly.

Applicable Industries & Applications

✓ Infant Feeding Bottles (PET & PP)
✓ Wide-Neck Baby Bottles (114.3 mm)
✓ PP Heat-Sterilisable Bottles
✓ Toddler Sippy Cups & Training Bottles
✓ Breast Milk Storage Bottles
✓ Wide-Neck PP Food-Contact Containers
✓ Premium PP Packaging (Cosmetic / Pharma)
✓ BPA-Free Infant & Toddler Drinkware

2. Working Principle

All models operate on the two-step reheat stretch blow molding (RSBM) process. Wide-neck infant bottle preforms — significantly heavier and thicker than equivalent-volume beverage preforms, with a 114.3 mm neck ring accounting for a high proportion of total preform weight — are automatically fed from a gravity hopper, oriented neck-up, and conveyed through a multi-zone NIR oven on dedicated wide-neck mandrel holders without hand contact at any stage.

PP processing introduces specific challenges compared with PET. PP has a narrower process window — the temperature range between insufficient orientation and stress whitening is tighter than PET — requiring more precise zone-by-zone NIR control and faster transfer from oven to blow station to prevent temperature loss in the critical pre-blow window. All FS and JS series models, and the PP-mode operation of AS series models, incorporate PP-optimised oven zone configurations, transfer timing, and blowing pressure profiles as stored PLC recipes.

At the blow station, servo stretch rods extend axially per cavity simultaneously with low-pressure air pre-blowing, followed by a 35 kg/cm² high-pressure blast that drives PET or PP against the cooled mold wall. The 114.3 mm wide neck demands a larger mold-platen opening than standard narrow-neck machines — all models in this series have clamping and mold-open distances specifically sized for the 114.3 mm neck geometry.

Key structural components: AS-grade servo-electric clamping • per-cavity servo stretch rod • multi-zone NIR oven with wide-neck 114.3 mm neck-protection cooling collar • no-hand-contact automatic wide-neck preform feeder • Siemens/Mitsubishi PLC with PET/PP dual-mode recipes • inline dimensional rejection system.

3. Core Advantages

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PET & PP on One Machine (AS Series)

AS-series models process both PET and PP without hardware modification — switching between resins requires only a preform change and PLC recipe selection. Baby bottle producers serving both the clear-PET retail segment and the PP clinical/premium segment can run both formats on a single machine, reducing capital investment and floor space requirements.

114.3 mm Wide-Neck Precision

All models maintain neck-finish diameter variation within ±0.15 mm for the 114.3 mm wide-neck format — the tolerance required for consistent teat-collar engagement torque and airtight seal across all bottles in a production batch. Tighter than standard packaging requirements, this precision eliminates feeding leakage from inconsistent teat-collar seating that causes returns and brand damage.

💊

BPA-Free — PET & PP

Both PET and PP are inherently BPA-free and globally approved for infant food contact under FDA 21 CFR, EU Regulation 10/2011, and equivalent national infant safety regulations. No plasticisers, no bisphenol compounds, no phthalates. PET offers superior clarity; PP offers superior heat-sterilisation resistance (120°C autoclave compatible) and microwave safety.

🎯

No-Hand-Contact — Infant Safety Standard

Fully automated production from preform feed to bottle discharge with no operator hand contact with preform or bottle interior at any stage — satisfying the fundamental infant product manufacturing safety requirement and supporting compliance submissions under EN 14350 (infant drinking equipment) and equivalent national standards.

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300 to 2,000 bph — Precision Over Speed

Baby bottle blow molding is a precision-first application — throughput is secondary to dimensional consistency. The series range of 300–2,000 bph reflects the extended cycle times required for wide-neck preform conditioning and the reduced cavity counts justified by premium bottle values. Even at 300 bph, per-bottle economics are commercially strong in the premium infant feeding market.

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Complete Turnkey Supply

We supply baby bottle blow molds (114.3 mm and 76.2 mm wide-neck tooling), PET and PP preform injection molds, industrial chillers, and oil-free compressor packages from a single source — ensuring food-grade and infant-contact-grade compressed air compliance and simplifying procurement for infant product brand owners and packaging converters.

PET PP baby bottles infant feeding bottles wide-neck 114.3mm produced by baby bottle blow molding machines

4. Technical Specifications

▶ AS Series — PET & PP Dual-Material Baby Bottle (1 / 2 / 4 Cavity)

3 models. Higher-grade AS servo motors for maximum neck-finish precision on 114.3 mm and 76.2 mm wide-neck infant bottles. Processes both PET and PP from stored dual-mode PLC recipes — no hardware modification required between resins.

Parameter / Unit AS-1C114.3 AS-2C114.3 AS-4C76.2
Material PET / PP PET / PP PET / PP
Cavities 1 2 4
Max. Container Volume (ml) 350 350 250
Output (bph) 500 900 2,000
Max. Neck Diameter (mm) 114.3 114.3 76.2
Max. Body Diameter (mm) 80 80 65
Max. Container Height (mm) 235 235 235
Clamping Stroke (mm) 122 122 100
Mold-Open Distance (mm) 302 302 280
Stretching Stroke (mm) 400 400 350
Preform Holder 24 48 96
Max. Heating Power (kW) 20 30 33
Normal Heating Power (kW) 8 15 17
Blowing Pressure (kg/cm²) 35 35 35
HP Air Consumption (L/min) 500 1,000 4,000
Cooling Water Flow (L/min) 30 30 40
Machine Size L×W×H (mm) 2150×1660×2150 2660×1660×2150 3370×1850×2100
Machine Weight (kg) 1,500 2,600 4,000

▶ FS Series — PP-Only Dedicated Baby Bottle (1 Cavity)

2 models. Purpose-built PP-only platforms for dedicated baby bottle production. FS-1C114.3: standard wide-neck PP bottle. FS-1CG114.3: wide-neck format with enhanced neck-protection system for bottles requiring additional collar-zone thermal isolation during oven conditioning.

Parameter / Unit FS-1C114.3 FS-1CG114.3
Material PP PP
Cavities 1 1
Special Feature Standard PP wide-neck Enhanced neck-protection system
Max. Container Volume (ml) 350 350
Output (bph) 300 300
Max. Neck Diameter (mm) 114.3 114.3
Max. Body Diameter (mm) 80 80
Max. Container Height (mm) 235 235
Clamping Stroke (mm) 139 139
Stretching Stroke (mm) 400 400
Max. Heating Power (kW) 22 22
Normal Heating Power (kW) 10 10
HP Air Consumption (L/min) 500 500
Cooling Water Flow (L/min) 30 30
Machine Size L×W×H (mm) 2150×1660×2150 2550×1660×2150
Machine Weight (kg) 1,800 1,800

▶ JS Series — PP-Only Baby Bottle Platform (1 & 2 Cavity)

2 models. PP-only platforms for single-cavity development and 2-cavity scaled production. JS-1C114.3 for pilot or premium low-volume PP baby bottle runs; JS-2C114.3 for commercial-scale PP bottle production at 600 bph.

Parameter / Unit JS-1C114.3 JS-2C114.3
Material PP PP
Cavities 1 2
Max. Container Volume (ml) 350 350
Output (bph) 300 600
Max. Neck Diameter (mm) 114.3 114.3
Max. Body Diameter (mm) 80 80
Max. Container Height (mm) 235 235
Clamping Stroke (mm) 139 139
Stretching Stroke (mm) 400 400
Max. Heating Power (kW) 22 36
Normal Heating Power (kW) 10 20
HP Air Consumption (L/min) 500 1,000
Cooling Water Flow (L/min) 30 30
Machine Size L×W×H (mm) 2150×1660×2150 2660×1660×2150
Machine Weight (kg) 1,800 2,600

⚡ Compressed Air — Infant-Grade Requirement: All models require low-pressure air at 7 kg/cm² and high-pressure air at 35 kg/cm². For direct-contact infant feeding bottle production, an oil-free compressor delivering ISO 8573-1 Class 1 air quality is mandatory — hydrocarbon oil mist from a conventional compressor constitutes a food-safety failure in infant packaging. Read our technical guide: why PET stretch blow molding demands 40-bar oil-free compressors — we supply matched infant-grade oil-free compressor packages as part of our complete turnkey solution.

5. Structure & Material Engineering

🛠 Wide-Neck Clamping Architecture

The 114.3 mm wide-neck format requires a substantially wider mold-platen opening than standard narrow-neck machines — all models have clamping and mold-open dimensions sized for this geometry. The FS and JS series use a 139 mm clamping stroke versus 100–122 mm in standard machines, providing the necessary clearance for wide-neck baby bottle mold access without mechanical interference during bottle extraction.

⚙ AS-Grade Servo Clamping

Toggle-link servo-electric clamping with higher-specification AS-grade servo motors in the AS series — delivering ±0.15 mm neck-finish repeatability for teat-collar seating. FS and JS series use equivalent servo-electric clamping with no hydraulic fluid, eliminating contamination risk in infant product manufacturing environments.

🌡 PP-Optimised NIR Oven

PP has a narrower process window than PET — the temperature band between under-heated (insufficient orientation, stress whitening) and over-heated (surface burning, crystallisation) is approximately 5°C versus 15°C for PET. All PP-mode oven configurations use tighter zone control, faster preform transfer from oven exit to blow station, and PP-specific blowing pressure profiles stored as dedicated PLC recipes. The AS-series dual-mode recipe system allows rapid switching between PET and PP configurations without manual oven adjustments.

🔓 Baby Bottle Mold Materials

Blow mold cavities machined from high-strength aluminium alloy with conformal cooling channels optimised for the thick-base geometry of infant bottles. All mold surfaces in contact with the bottle exterior are polished to food-contact surface finish standards. Baby bottle preform injection molds use 2316 food-grade stainless mold steel, CNC-machined with ±0.01 mm on teat-collar seating geometry.

🔓 Wide-Neck Preform Mandrel System

Wide-neck 114.3 mm preforms are significantly larger and heavier than standard beverage preforms — requiring wider-bore mandrel holders, stronger orientation bowl air jets for correct neck-up orientation, and higher-capacity inclined feeder tracks. All models are equipped with 114.3 mm-specific preform handling hardware as standard, eliminating the adaptation failures that occur when standard beverage machines are incorrectly adapted for baby bottle preforms.

📱 PLC & Dual-Material Recipes

Siemens or Mitsubishi PLC with colour HMI. Up to 50 recipes on-board — including separate PET-mode and PP-mode recipe sets for each bottle format on the AS series. Production batch logging supports infant product traceability requirements. Format changeover between PET and PP requires only preform substitution and recipe selection — oven zone power, transfer timing, and blow pressure are all managed automatically by the stored recipe.

6. Typical Application Scenarios

👶 Standard-Volume Infant Feeding Bottles (PET)

120–350 ml PET infant feeding bottles with 114.3 mm wide-neck format for standard teat-collar systems. Crystal-clear PET enables parents to verify fill level and formula mixing without removing the teat — a practical safety feature. The AS-1C114.3 (500 bph) suits boutique and premium baby bottle brands; the AS-2C114.3 (900 bph) serves mid-volume baby bottle producers.

💉 Heat-Sterilisable PP Feeding Bottles

PP baby bottles for steam steriliser, electric steriliser, and autoclave (120°C) use — the clinical and hospital-grade segment where heat resistance is mandatory. PP also withstands repeated microwave heating for formula warming. The FS-1C114.3 and JS-1C114.3 (both 300 bph) provide dedicated PP platforms for premium brands where single-cavity production of individual bottle SKUs at high per-bottle values makes commercial sense.

⚡ High-Volume BPA-Free Baby Bottle Production

The AS-4C76.2 (4 cavity, 2,000 bph, 76.2 mm neck) provides the highest throughput in the series for mass-market BPA-free baby bottle production at 250 ml and smaller capacities. At 2,000 bph the economics support retail price points accessible to value-segment infant feeding brands while maintaining the AS-grade dimensional precision needed for consistent teat-collar engagement across all four cavities simultaneously.

🥊 Dual-Material Brand Range (PET + PP)

Many infant feeding brands offer the same bottle silhouette in both PET (for clear-body visual appeal) and PP (for steriliser-compatible performance). The AS-series dual-material capability on a single machine enables these brands to manage both SKUs from one production line — using identical molds and preform dimensions, switching between resins by recipe selection alone. This eliminates the cost of two dedicated machines for brands covering both market segments.

🆕 Toddler Sippy Cups & Training Bottles

Toddler transition cups and training bottles share the 114.3 mm wide-neck format with infant feeding bottles and are manufactured on the same machines. PET clarity enables branded coloured-formula training liquids to be visible through the bottle wall. PP heat resistance supports the repeated sterilisation that toddler drinkware undergoes in daycare and nursery settings.

💊 Premium PP Packaging (Cosmetic & Pharma)

Wide-neck PP containers from this series are also used in premium cosmetic cream jars, ointment containers, and pharmaceutical topical preparation packaging — applications that share the 114.3 mm wide-neck geometry and require the same PP heat resistance and food/pharmaceutical-contact compliance as infant bottles. The FS-1CG114.3 enhanced neck-protection variant is particularly suited to premium cosmetic packaging where neck-zone surface quality is a brand differentiation factor.

7. Our Machines vs. European Brand Platforms — Objective Comparison

Disclaimer: The brand names Sidel, Krones, SMI, and Sipa are referenced solely to assist buyers in comparing technical specifications and making informed sourcing decisions. We are an independent manufacturer with no affiliation with or endorsement from any of these brands. We do not manufacture or sell their products. This comparison does not constitute intellectual property infringement of any kind.
Comparison Item Sidel SBO Series Krones Contiform SMI Smiflexi Sipa SFR EVO Our Series
Origin France Germany Italy Italy Asia
Baby Bottle / Wide-Neck Focus Beverage-primary Beverage-primary General purpose General purpose Dedicated series
PET + PP on Same Machine Selected models Selected models Limited Limited AS series — standard
114.3 mm Neck Capability Selected models Selected models Limited Limited All 7 models
Approx. Entry CapEx (1-cav.) USD 120K – 200K USD 110K – 180K USD 90K – 160K USD 100K – 170K Significantly lower — direct
Spare Parts Lead Time 4–12 weeks 4–10 weeks 4–10 weeks 4–10 weeks 3–7 days (stocked)
After-Sales Service Regional agents Regional agents Regional agents Regional agents Direct + remote video
CE Certification Yes Yes Yes Yes Yes

CapEx figures are indicative market estimates. Our pricing is provided by confirmed quotation only.

8. Model Selection Guide

Your Requirement Recommended Model
Pilot / premium PET or PP baby bottle, 1 cavity, 500 bph AS-1C114.3 (PET/PP dual-material)
Commercial PET or PP baby bottle, 2 cavity, 900 bph AS-2C114.3 (PET/PP dual-material)
High-volume BPA-free bottle, 4 cavity, 2,000 bph, 76.2 mm neck AS-4C76.2 (PET/PP dual-material)
Dedicated PP baby bottle, standard format, 1 cavity FS-1C114.3 (PP-only, 300 bph)
Dedicated PP baby bottle, enhanced neck-protection, 1 cavity FS-1CG114.3 (PP-only, 300 bph)
PP-only platform, low-volume or R&D, single cavity JS-1C114.3 (PP-only, 300 bph)
PP-only platform, scaled commercial production, 2 cavity, 600 bph JS-2C114.3 (PP-only, 600 bph)

PP baby bottles wide-neck 114.3mm infant feeding bottles produced by baby bottle blow molding machines

9. Frequently Asked Questions

Q1: Are PET and PP baby bottles BPA-free?
Yes. Both PET and PP are inherently BPA-free — they do not contain bisphenol A, bisphenol S, phthalates, or other endocrine-disrupting plasticisers. Both materials are globally approved for infant food contact under FDA 21 CFR, EU Regulation 10/2011, and national infant safety standards including EN 14350. The machines in this series produce bottles from food-grade PET and PP resins with no additives introduced during the blow molding process itself.
Q2: What is the difference between PET and PP for baby bottles?
PET offers crystal clarity for maximum visual transparency — ideal for retail packaging where product visibility drives purchase decisions — but cannot withstand repeated steam sterilisation above 75°C without deforming. PP is naturally translucent rather than crystal-clear, but withstands steam steriliser temperatures up to 120°C and is microwave-safe for formula warming. Clinical and hospital-grade infant feeding programs typically specify PP for its sterilisation compatibility. Premium consumer brands often offer both materials, using the same bottle silhouette, and the AS-series dual-material capability supports this twin-SKU strategy from one machine.
Q3: Why is PP harder to blow mold than PET?
PP has a narrower processing temperature window than PET — approximately 5°C versus 15°C — and is more sensitive to cooling rate variations that affect the degree of crystallinity in the finished bottle. Under-heated PP produces stress whitening (visible as a white haze in the bottle wall); over-heated PP produces surface burn marks and dimensional instability. Consistent PP baby bottle production requires tighter NIR zone control, faster preform-to-blow-station transfer, and PP-specific blowing profiles — all managed automatically by the dedicated PP-mode recipes in the PLC on all models in this series.
Q4: What does the FS-1CG114.3 enhanced neck-protection system do?
The CG designation indicates an enhanced neck-protection cooling collar that provides more aggressive thermal isolation of the 114.3 mm wide-neck ring zone during oven conditioning. For PP baby bottles with very wide collar-ring cross-sections, the standard neck-protection system can allow minor heat migration into the lower face of the collar ring — causing slight dimensional instability in the teat-collar seating surface. The enhanced CG system reduces this effect, making FS-1CG114.3 the preferred platform for PP baby bottle formats with complex collar-ring geometry or premium seating-surface requirements.
Q5: What compressed air specification is required for baby bottle production?
All models require high-pressure air at 35 kg/cm². For infant feeding bottle production, ISO 8573-1 Class 1 oil-free air is mandatory at the blowing point — this is the highest infant-contact-grade air quality standard, requiring oil aerosol content below 0.01 mg/m³. We supply matched oil-free high-pressure compressor packages certified for infant food-contact air quality as part of our turnkey solution.
Q6: How does the AS series switch between PET and PP processing?
Switching between PET and PP on an AS-series machine requires three actions: (1) substitute the preform hopper with PP preforms — the same mold is used for both resins provided the preform geometry is identical; (2) select the PP-mode recipe on the HMI touchscreen — this automatically changes oven zone powers, zone temperatures, transfer timing, and blowing pressure profile to PP-optimised values; (3) allow 3–5 cycle warm-up runs for the oven zones to stabilise at the new setpoints. No tool changes, no hardware modifications, no oven lamp changes are required.
Q7: What teat-collar systems are compatible with 114.3 mm neck bottles from this series?
The 114.3 mm neck finish is the global standard for wide-neck infant feeding bottles, compatible with teat-collar systems from all major infant feeding accessory brands. Our blow mold neck-finish tooling is machined to the same 114.3 mm thread and seating geometry standard used across the industry. We recommend confirming your specific teat-collar thread-form and engagement-torque specification at mold design stage so the neck-finish dimensions can be validated against your closure system before mold construction.
Q8: What infant safety certifications can be supported?
Machine architecture documentation confirming no-hand-contact production and no-hydraulic-fluid servo-electric operation is provided for infant product safety submissions. PET and PP material compliance documentation (FDA, EU Regulation 10/2011, LFGB) can be obtained from resin suppliers for specific resin grades. Product certification testing (EN 14350 infant drinking equipment, ASTM F963 toy safety for dual-use products) is conducted at accredited product test laboratories using finished bottles — we can advise on which bottle dimensions and geometries affect test outcomes.
Q9: What is the production lead time from order to delivery?
Standard AS, FS, and JS series machines are produced within 45–60 working days from deposit receipt. Baby bottle blow molds — including 114.3 mm wide-neck tooling with teat-collar seating precision machining — are delivered in 35–45 working days from approved 3D bottle drawing. Wide-neck PP preform injection molds take 40–55 working days. Factory acceptance testing with bottle samples and dimensional measurement reports is conducted before shipment. On-site commissioning typically requires 3–5 working days.
Q10: Can these machines produce other wide-neck PP containers beyond baby bottles?
Yes. The 114.3 mm wide-neck machine platform accommodates any container fitting within the maximum body diameter (80 mm) and height (235 mm) envelope — including wide-neck cosmetic cream jars, ointment containers, pharmaceutical topical preparation packaging, premium food supplement containers, and wide-neck spice or condiment jars in PP. Any application requiring a 114.3 mm wide neck in PP or PET can be produced on this series with an appropriate blow mold. Submit your bottle drawing for mold design feasibility confirmation.

Explore our full range of two-step and one-step blow molding machines for infant, medical, food, and industrial packaging:

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10. Work with a Specialist Manufacturer

With over two decades of dedicated experience in blow molding machine design, manufacturing, and after-sales service, we supply automatic PET and PP baby bottle blow molding machines to infant feeding brands, healthcare packaging producers, and contract packaging organisations across more than 20 countries. Our production facility operates dedicated CNC machining, precision wide-neck mold fabrication, machine assembly, and quality-control departments. Our engineers are available globally for installation, commissioning, and after-sales support.

Whether you are launching a new infant feeding bottle brand, expanding from PET-only to dual-material PET/PP production, scaling from a pilot 1-cavity machine to multi-cavity commercial output, or replacing an ageing European baby bottle blow molder, our technical team will provide a no-obligation specification review and delivered-cost comparison within 48 hours of enquiry.

Ready to Specify Your Baby Bottle Blow Molding Machine?

Send us your bottle drawing or sample, material preference (PET, PP, or both), target daily output, and teat-collar specification — our engineering team will recommend the optimal automatic blow molding machine and issue a direct quotation.

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