What is Food Beverage Packaging Bottle Blow Molding Machine?
A blow molding machine is a specialized industrial system used to manufacture high-quality, food-grade plastic containers, such as: milk bottle, sauces, condiments, chewing gum bottle etc.
For the food industry, these blow molding machines are engineered with a heavy focus on hygiene, speed, and multi-layer technology to extend the shelf life of the products.
Bestar Blow Molding Machine Feature
Bestar Machine matched with any European molds to increase production capacity and competitive machine investment cost with high-speed applications.
Easily configured for monolayer and multi-layer applications.
Co-extrusion multilayer head with PWDS (Parison wall distribution System).
Single or multi parison.
Efficient electric drives on extrusion system.
In-mold labeling and view stripe capable.
Recommended Blow Molding Machine Models
Technical Parameter
| Machine Type | B20D-750 | B20D-900 |
|---|---|---|
| Cavities Per Mould | 4 Folds | 4 Folds |
| Double/Single Stations | Double Station | Double Station |
| Net Weight | 65±3g | 115±3g |
| Cycle Time (Machine with S136molds) | 18s | 26s |
| Production Capability (Machine with S136molds) | 38400 pcs/day | 26585 pcs/day |
Blow Molding Machine Detail
Control System
Austrian B&R control system with PLC control, convenient to check or adjust temperature, speed and time, etc.
Embedded 100-point parison control system, well-distributed thickness and cost saving.
Fault diagnosis and alarms automatically are displayed on screen. Analyze and correct parameters by ADSL connection.
Die Head
Precise and accurate die head design-streamline, no blind angle and faster color change.
Lower back pressure, extending service time of extruder unit and gear box.
Multi-cavity flow channel, easy to control flow.
Multi-layer co-extrusion head with heart curve or sprial mandrel.
Single layer die head with offset spider.
View stripe on die heads at request.
Deflashing Unit
Top punching devices for neck, shoulder and handle with electro pneumatic control, including electro pneumatic control for cooling of flash and blowing away.
Bottom punching devices include counter support pneumatically spring loaded with electro pneumatic control. Driven by pneumatic cylinder.
Vertical adjustment for different article length.
Leak Tester
Fast filling, testing, diversity and decompression.
Automatic removal of leak products.
Article Conveyor System
Perfect combination between the design of robot arm and conveyor, reasonable layout, space saving.
Labor cost and production risk are effectively reduced.
Electrical Cabinet
Separate cabinet for heavy and light current.
Isolation transformer protects PLC from damage caused by short circuit.
Embedded industrial air conditioner guarantees normal working of control system under terrible circumstance.
Blow Molding Machine FAQ
What plastic materials are used?
The most common materials are HDPE (High-Density Polyethylene) for milk and juice, PP (Polypropylene) for heat-resistant condiment bottles, and PET for clear water and soda bottles.
How does a 3-layer bottle protect food better than a 1-layer bottle?
A 3-layer bottle allows for a "functional" core. The middle layer can be a light-blocker or an oxygen barrier (EVOH), while the inner and outer layers are made of virgin food-grade plastic to ensure safety and aesthetics.
Can these machines produce different bottle sizes on one line?
Yes. By changing the molds and adjusting the parison controller settings, a single machine (like the Bestar 2L series) can produce a variety of shapes and sizes, from 100ml yogurt shots to 2L milk jugs.
What special features are needed for food beverage packaging bottles?
High-Precision Neck Finishing: The neck (where the cap screws on) must be dimensionally perfect to prevent leaks. Machines often have calibration blowing for the neck.
Leak Testing Station (often integrated): Many production lines include an inline air-pressure test to automatically reject leaking bottles.
Anti-Drop Neck Ring Handling: Prevents neck deformation during part transfer.
Deflashing System: Efficiently removes the "tail" and excess flash (especially for handle-ware bottles).
Production process flow of food beverage packaging bottles?
Raw Material Handling → Drying & Conditioning → Melting & Extrusion → Parison Formation → Mold Clamping & Blowing → Cooling & Ejection → Deflashing & Finishing → Leak Testing → Quality Inspection → Packaging & Palletizing
Is the machinery compliant with food safety standards?
Yes. High-quality food-grade blow molding machines are built with non-corrosive materials and often feature closed-loop systems to prevent contamination from hydraulic fluids or dust.
What key factors should I consider when choosing blow molding machine?
Bottle size & weight: Max./min. capacity (e.g., 100ml to 5L).
Output requirement: Bottles per hour/shift.
Neck finish detail: Type of thread (e.g., ISO, API, custom), handleware capability.
Material: HDPE melt index suitability.
Automation level: Auto-parison control, robot take-out, in-line trimming.
Floor space & utilities: Air consumption (CFM), cooling water (GPM), power (kW).
How to improve the production efficiency of blow molding machine?
Shorten the molding cycle: By precisely optimizing core process parameters such as heating, blowing, and cooling, and adopting rapid mold change technology and efficient mold cooling systems, time is compressed in each cycle to maximize output per unit of time.
Ensure continuous and stable operation: Implement a strict preventive maintenance plan and introduce automation devices (e.g., automatic feeding, robotic part removal) to minimize non-productive time wasted due to equipment failures, manual operations, and product defects.
About Suzhou Bestar Blow Molding Machinery
Bestar provides customers high efficiency, innovative, energy saving blow molding machinery solutions.
Bestar has won great trust from international customers by providing high-quality blow molding machines and perfect after-sales service. Bestar blow molding machines have been sold to North America, Poland, Mexico, Colombia, Peru, Argentina, Chile, Indonesia, Malaysia, Vietnam, Bangladesh, Saudi Arabia, South Africa, Egypt, Ghana, Tanzania, Ethiopia and other countries.
Bestar management "to take quality as a core principal, honesty and customer first, and create mutual benefits" we wish to share benefits, mutual cooperation and prosperity with domestic and international customers.
Contact Bestar Machinery
- Email: sales@bestarmachinery.com
- Mobile & WhatsApp: +86 18862609888
- Fax: +86-512-5818 8210
- Address: Zhangjiagang Economic Development Zone, the eastern side of Gangcheng street, 215600, Jiangsu Province,China
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