One-to-Two Fully Automatic PET Wide-Mouth Bottle Blow Molding Machine

Features

A. Employs an advanced microcomputer control system for stable performance;

B. Servo system for automatic preform loading;

C. Uses ruby infrared lamps for heating, providing strong penetration. The preform rotates and is heated evenly, quickly, and reliably via orbital rotation. The width and height of the lamps and reflectors in the heating zone are adjustable to suit preforms of different structures. An automatic temperature control device ensures constant temperature in the drying tunnel;

D. Each mechanical action has a safety self-locking device. If a process malfunctions, the program automatically switches to a safe state;

E. All actions are driven by cylinders, eliminating the need for oil pumps, resulting in zero pollution and low noise. High-pressure and double-arc linkage mold locking provides strong locking force.

F. Offers both manual and fully automatic operation modes. A unique valve design ensures clear visibility of the air path.

G. The entire production process is automated, offering advantages such as low investment, high efficiency, convenient operation, simple maintenance, and safety.

H. Bottles are free from contamination; the bottle scrap rate is less than 0.001%.

Advantage

1. The entire machine is designed as a linear high-speed machine. The extended length ensures a high product yield and allows for rapid molding of various bottle shapes. It can withstand 24-hour ambient temperature changes without temperature fluctuations.

2. It adopts an imported American nylon slider structure, which is wear-resistant and ensures stable and long-term operation without the machine's center distance increasing.

3. The double-curved arm clamping mechanism combined with high-pressure clamping makes the clamping machine operate more smoothly and at higher speeds, providing greater clamping force and a smaller seam. The molding machine is equipped with a lubrication oil distribution system, which can evenly supply lubricating oil to each joint of the double-curved arm, better protecting the double-curved arm.

4. It adopts an extended ruby infrared oven, using a slow, gentle heating process to thoroughly bake the preform, ensuring almost uniform temperature between the inner and outer surfaces. This guarantees rapid molding of PET bottles, thereby increasing output and achieving a yield of up to 99.9%. It is easy to operate, requiring no frequent temperature adjustments. The extended oven results in energy savings and increased production. We use a lower temperature to slowly bake the preform thoroughly, while shorter ovens on the market require higher lamp temperatures to bake the preform to a certain degree. This conclusion was reached after comparative testing. Preforms baked that way inevitably have inconsistent internal and external temperatures, resulting in inferior molding quality, especially for thick-walled bottles.

5. It uses ruby infrared energy-saving lamps, with twice the penetration power of ordinary infrared lamps.

6. It features a one-outlet, two-stage fully automatic blow molding mold with a positioning function; mold changes take only 5 minutes.

7. Stretch sealing cylinder (This sealing cylinder is independently developed and designed. Compared with the service life of a few months on the market, ours has the advantage of a longer service life, up to 2 years.)

Parameters

1. Introduction

The One-to-Two Fully Automatic PET Wide-Mouth Bottle Blow Molding Machine is designed for high-volume production of wide-mouth PET bottles and containers. This equipment caters to the growing needs of the food, beverage, chemical, and nutritional industries, providing precise, consistent, and efficient bottle manufacturing.

With the increasing demand for durable, easy-to-fill containers, this machine integrates advanced servo-driven technology, automated preform handling, and wide-mouth mold compatibility. It ensures uniform wall thickness, accurate neck formation, and consistent bottle quality across high-volume production runs.

This guide provides a comprehensive SEO-friendly resource, covering the machine definition, working principle, structure, key features, technical specifications, advantages, applications, maintenance, energy efficiency, and industry trends, suitable for blogs, product pages, and category pages.

2. Definition and Core Concept

The One-to-Two Fully Automatic PET Wide-Mouth Bottle Blow Molding Machine is a stretch blow molding system capable of producing two wide-mouth bottles simultaneously. It combines full automation with precise servo-driven control, allowing manufacturers to achieve high-volume, consistent, and defect-free production.

Key Definitions

3. Working Principle

The machine operates using a two-stage stretch blow molding process, with servo-controlled preform handling and stretching for uniform wall thickness and precise bottle formation.

Production Workflow

1. Preform Feeding
   Two preforms are automatically loaded into the feeding system for each production cycle.

2. Infrared Heating
   Preforms are heated to a precise temperature profile to allow optimal stretching and uniform molecular orientation.

3. Servo Stretching Stage
   Servo-driven stretch rods elongate preforms vertically, ensuring consistent wall thickness and uniform bottle strength.

4. High-Pressure Blowing
   Compressed air inflates the preforms into molds, forming the wide-mouth bottles accurately.

5. Cooling Stage
   Molds cool the bottles uniformly, ensuring dimensional stability and prevention of deformation.

6. Automatic Ejection
   Two finished bottles per cycle are ejected for downstream filling, labeling, or packaging.

4. Machine Structure and Components

5. Key Features and Advantages

5.1 High-Volume Production

• One-to-two production cycle doubles output per cycle

• Ideal for large-scale industrial operations

5.2 Wide-Mouth Design

• Accommodates sauces, edible oils, bulk liquids, powders

• Enables easy filling, cleaning, and handling

• Supports multiple bottle sizes

5.3 Servo-Driven Precision

• Ensures uniform wall thickness and bottle strength

• Accurate neck, thread, and base formation

• Reduces material stress and defects

5.4 Fully Automatic Operation

• Automates feeding, heating, stretching, blowing, cooling, and ejection

• Reduces labor dependency and operational errors

• Increases production efficiency and throughput

5.5 Energy Efficiency

• Infrared heating optimized for low energy consumption

• Servo motors improve operational precision and reduce waste

• Air recovery systems minimize compressed air usage

5.6 Flexible Operation

• Supports multiple bottle volumes and shapes

• Quick mold changeovers for small-batch or experimental production

• Reduces material waste and downtime

6. Technical Specifications (Reference Table)

7. Comparison with Standard Machines

8. Applications Across Industries

8.1 Food Industry

• Edible oils, sauces, ketchup, vinegar

• Bulk food containers

8.2 Beverage Industry

• Water, juice, soft drink, nutritional drink bottles

8.3 Nutritional and Pharmaceutical

• Protein powder, liquid supplements

• Wide-mouth supplement jars

8.4 Household and Chemical

• Cleaning solutions, detergents, liquid chemicals

9. Materials Used

Primary Material: PET

Other Compatible Materials

• PP (Polypropylene)

• PC (Polycarbonate)

10. Ensuring High-Quality Production

• Uniform infrared heating for preforms

• Servo-driven stretching ensures wall thickness uniformity

• Stable air pressure prevents deformation

• High-precision molds provide accurate neck and base dimensions

11. Energy Efficiency and Cost Optimization

Cost Benefits:

• Lower energy cost per bottle

• Reduced material waste

• High ROI for industrial production

12. Production Efficiency

• Multi-cavity molds and one-to-two design enhance throughput

• Automated processes reduce cycle time

• Ensures consistent, defect-free bottles

Output Example

13. Maintenance Guidelines

Daily

• Inspect molds, heating lamps, cooling lines

• Check compressed air supply

Weekly

• Lubricate moving parts

• Inspect PLC and electrical systems

Annual

• Replace worn components

• Calibrate sensors and servo motors

• Check structural integrity for continuous operation

14. Safety Features

• Emergency stop buttons

• Overload protection

• Automatic alarms for temperature, pressure, or malfunctions

• Mold interlocks for operator safety

15. Industry Trends

• Wide-mouth PET bottles growing in food, beverage, and nutritional sectors

• Integration with servo-driven automation and smart monitoring

• Increased emphasis on energy efficiency and sustainability

• AI-assisted quality monitoring for defect detection

16. FAQ Section

Q1: How many bottles does it produce per cycle?
Two bottles per cycle, increasing production efficiency.

Q2: Can it handle different bottle sizes?
Yes, molds are adjustable for multiple bottle volumes and shapes.

Q3: What industries is it suitable for?
Food, beverage, nutritional supplements, chemical, and household product packaging.

Q4: Is it energy-efficient?
Yes, infrared heating, servo motors, and air recovery systems optimize energy consumption.

17. Conclusion

The One-to-Two Fully Automatic PET Wide-Mouth Bottle Blow Molding Machine is ideal for high-volume production, delivering:

• Wide-mouth container production for food, beverage, and chemical products

• Fully automated operation with servo-driven precision

• Energy efficiency and reduced material waste

• Flexibility for multiple container sizes and batch production

It provides durability, reliability, and high ROI, making it a core asset for modern PET Bottle Manufacturing lines.