Editorial Technical Reference

Blow Molding Machine

This page explains how Blow Molding Machine is classified within Beverage Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Machine that inflates heated plastic preforms or extruded parisons inside a mold cavity with compressed air to form hollow containers.

Product Specifications

Technical details and manufacturing context for Blow Molding Machine

Definition
Blow molding machines produce hollow plastic parts such as beverage bottles, jars, and industrial containers. Stretch blow molding machines reheat injection-molded PET preforms and stretch-blow them into bottle molds, dominating water and carbonated drink packaging with outputs from about 1,000 to over 80,000 bottles per hour on rotary platforms. Extrusion blow molding extrudes a molten parison that the mold pinches and inflates, suiting HDPE bottles, jerry cans, and tanks. Machine selection hinges on material, neck finish, output, and whether preforms are bought or molded in-house. Typical parameters include clamping force of 50–200 kN, screw diameter of 45–90 mm, plasticizing capacity of 50–150 kg/h, max container volume of 0.5–5 L, production rate of 600–1200 pcs/h, heating power of 20–60 kW, air consumption of 0.5–2.0 m³/min, machine weight of 3000–8000 kg, dimensions of 3000×1500×2500 to 5000×2000×3500 mm, power supply of 380 V AC ±10% (IEC 60038), frequency of 50/60 Hz (IEC 60038), noise level ≤75 dB(A) (ISO 11201), and temperature range of 5–40 °C. Materials include steel machine frame, aluminum or stainless bottle molds with beryllium-copper inserts, stainless steel 304 guarding, high-pressure pneumatic valves and manifolds, and servo drives with PLC controls. Relevant standards include CE Machinery Directive 2006/42/EC, ISO 12100, and GB 4806 series for food-contact compliance. Verify model-specific values and standards with the legal manufacturer or supplier.
Working Principle
In stretch blow molding, infrared ovens heat preforms to the polymer's stretch temperature; a stretch rod elongates the preform axially while pre-blow and high-pressure air up to about 40 bar expands it against the chilled mold, setting biaxial orientation that gives strength and clarity. Extrusion blow molding instead closes the mold on an extruded parison and inflates it with lower-pressure air.
Common Materials
steel machine frame, aluminum or stainless bottle molds with beryllium-copper inserts, stainless steel 304 guarding, high-pressure pneumatic valves and manifolds, servo drives and PLC controls
Technical Parameters
ParameterTypical rangeNotes & selection driver
Clamping Force50–200 kNDetermines max container size and prevents mold flash.
Screw Diameter45–90 mmAffects plasticizing capacity and melt quality.
Plasticizing Capacity50–150 kg/hDefines throughput for continuous production.
Max Container Volume0.5–5 LUpper limit of bottle size the machine can produce.
Production Rate600–1200 pcs/hCycle time and mold cavities determine output.
Heating Power20–60 kWSufficient for preform heating to forming temperature.
Air Consumption0.5–2.0 m³/minAffects compressor sizing and energy cost.
Machine Weight3000–8000 kgImportant for floor loading and installation.
Dimensions (L×W×H)3000×1500×2500–5000×2000×3500 mmSpace requirement for layout planning.
Power Supply380 ±10% V ACThree-phase; voltage deviation affects motor performance.IEC 60038
Frequency50/60 HzMust match local grid.IEC 60038
Noise Level≤75 dB(A)Compliance with workplace safety regulations.ISO 11201
Temperature Range5–40 °COutside this range, performance may degrade.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Infrared Ovens
    Heat the preforms to the polymer stretch temperature.
  • Stretch Rod
    Elongates the preform axially before and during blowing.
  • Mold
    Chilled cavity the inflated preform is formed against.
  • Compressed Air
    Pre-blow and high-pressure air that inflates the preform.

Application & selection

Application Fit & Sizing Matrix

Operational Limits
process: stretch blow (PET) or extrusion blow (HDPE/PP)
integration: inline with filling blocs or standalone with air conveyors
output range: 1,000-80,000+ bottles/h by platform
blow pressure: up to ~40 bar for SBM with air recovery options
container volume: 0.1-30 L typical, larger on industrial EBM

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Pearlescence or haze in blown bottles
Cause: Preform temperature below stretch window causing stress whitening, from oven lamp drift, preform wall variation, or ambient changes.
High-pressure valve seal wear
Cause: Oil-contaminated or wet compressed air degrading valve seals, causing pressure drop, slow blow curves, and inconsistent bottle formation.
Maintenance Indicators
Engineering Tips

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Blow Molding Machine

12 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Zhangjiagang King Machine Tech Co., Ltd.
Zhangjiagang, Jiangsu, CN
200 employees in total staff
Stated by the company · profile compiled by CNFX from public sources
Guangzhou Tech-Long Packaging Machinery Co., Ltd.
Guangzhou, Guangdong, CN
Founded 1998380 technical engineers staff
Stated by the company · profile compiled by CNFX from public sources
Hubei Wanying Machinery Co., Ltd.
Huangshi, Hubei, CN
Founded 2010
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Blow Molding Machine”
View source page ↗ wanyingmachinery.com · checked 2026-09-13
Jwell Machinery Manufacturing Co., Ltd.
Shanghai, Shanghai, CN
Founded 1997over 3,000 staff
CE ISO 9001:2015
Stated by the company · profile compiled by CNFX from public sources
Baiya Machinery
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “170T LED Injection Blow Molding Machine”
View source page ↗ baiyamachine.com · checked 2026-09-05
Best Crown China
Beijing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Blow Molding Machine”
View source page ↗ bestcrownchina.com · checked 2026-08-26
Borun Machinery
Zhangjiagang, Jiangsu, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Bottle Blow Molding Machine”
View source page ↗ borun-machinery.com · checked 2026-09-04
China As filler machinery Co., Ltd.
Jiangsu, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Blow Molding Machine”
View source page ↗ asfiller.com · checked 2026-09-16
Datong Machinery
Zhangjiagang, Jiangsu, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “PRODUCT Bottle Blow Molding Machine>”
View source page ↗ datong-machine.com · checked 2026-09-16
Guangzhou RITO Packaging Machine Co., Ltd.
Guangzhou, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Bottle Blow Molding Machine”
View source page ↗ ritopackmachinery.com · checked 2026-08-30
Han's Robot
Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Unloading and Packing of Blow Molding Machine”
View source page ↗ hansrobot.net · checked 2026-09-05
iBottling
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Automatic PET Blow Molding Machine View →”
View source page ↗ ibottling.com · checked 2026-09-17
View All Factories

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What is the difference between stretch and extrusion blow molding?

Stretch blow molding reheats injection-molded preforms and stretches them axially with a rod while inflating with high-pressure air, producing biaxially oriented containers with high strength and clarity, typically for PET bottles. Extrusion blow molding extrudes a molten parison, which the mold pinches and inflates with lower-pressure air, suitable for HDPE containers like jerry cans and tanks.

What are typical production rates for blow molding machines?

For stretch blow molding, rotary platforms can achieve outputs from about 1,000 to over 80,000 bottles per hour. The directory lists a production rate range of 600–1200 pcs/h for a typical machine, but actual output depends on cycle time, mold cavities, and container size. Verify with the manufacturer for your specific model.

Which standards apply to blow molding machines?

Relevant standards include CE Machinery Directive 2006/42/EC, ISO 12100 for machine safety, and GB 4806 series for food-contact material compliance of containers. These are reference points for procurement and verification; they do not guarantee certification of a specific product. Always confirm compliance with the supplier.

What factors influence machine selection?

Key factors include the material to be processed (e.g., PET, HDPE), neck finish of the container, required output, and whether preforms are purchased or molded in-house. Also consider clamping force, screw diameter, plasticizing capacity, max container volume, and available utilities like power supply and air consumption.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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