Precision PET Blow Molding Machine | High-Cavity, High-Speed Production

This document describes the high-performance 4-cavity fully automatic PET blow molding machine, engineered for the high-volume production of 650ml PET bottles. Designed with precision, speed, and reliability at its core, this machine is the ideal solution for bottling plants in the beverage, water, and liquid food industries.

1. High-Output Production

• Simultaneous 4-Bottle Production: Produces four high-quality PET bottles in every single cycle, dramatically increasing output compared to single or twin-cavity machines.

• Maximized Efficiency for High-Volume Runs: The ideal solution for large-scale production of water, CSD, edible oil, and other popular PET containers, ensuring you meet high market demand.

2. Superior Efficiency & Cost-Effectiveness

• Excellent Output-Per-Investment Ratio: Delivers the perfect balance between high production capacity and a manageable machine footprint and investment cost, offering a faster return on investment (ROI).

• Reduced Cost-Per-Unit: By producing more bottles per cycle and using less energy and labor per bottle, you significantly lower your overall production cost.

• Fully Automated Operation: From parison feeding to bottle ejection, the entire process is automated, ensuring consistent, uninterrupted 24/7 production with minimal manual intervention.

1. Machine Overview & Core Function

The machine is a full-automatic two-stage reheat blow molding system. Its primary function is to transform pre-manufactured PET preforms into finished, high-quality 650ml bottles. The "4-cavity" designation refers to the mold, which simultaneously forms four bottles in every single cycle, enabling exceptional production throughput.

2. Key Performance Specifications

• Number of Cavities: 4

• Standard Output Bottle Size: 650ml (Easily adjustable for other similar sizes)

• Production Capacity: Up to 5,500 bottles per hour (bph)

• Drive System: High-precision servo motors for smooth, energy-efficient operation.

• Control System: User-friendly PLC (Programmable Logic Controller) with an intuitive HMI (Human-Machine Interface) touchscreen for easy setup, monitoring, and troubleshooting.

  
  

3. Detailed Components and Process Description

The automated process is seamless and efficient:

• Preform Loading & Elevation: An automatic conveyor or elevator system gently feeds preforms into the machine's intake.

• Infrared Reheating Oven: The preforms rotate on a carousel through a multi-stage infrared oven. This carefully and uniformly reheats the PET material to its ideal stretching and blowing temperature, ensuring perfect material distribution.

• Blow Molding Station: The reheated preforms are transferred into the 4-cavity mold. A stretch rod first extends vertically to stretch the preform. High-pressure air is then injected, blowing the preform to perfectly conform to the shape of the mold, creating four finished 650ml bottles simultaneously.

• Product Ejection: After a brief cooling period, the mold opens, and the finished bottles are automatically ejected onto a discharge conveyor for downstream processes like labeling, filling, and capping.

4. Salient Features & Benefits

• High-Speed Production: The 4-cavity design and optimized cycle time deliver a proven output of 5,500 bottles per hour, maximizing your production capacity.

• Excellent Bottle Quality: Ensures consistent bottle finish with superior wall thickness distribution, high clarity, and excellent top-load strength, reducing leakage and failure risks.

• Full Automation: The entire process from preform loading to bottle ejection is fully automated, requiring minimal operator intervention and reducing labor costs.

• Energy Efficiency: Advanced servo motors and optimized heating lamps significantly reduce power consumption compared to conventional systems.

• Robust & Durable Construction: Built with high-grade materials and components to ensure long service life and minimal downtime, even in demanding 24/7 production environments.

• Quick Mold Change: The system is designed for rapid mold changeover, enhancing flexibility and reducing time when switching between different bottle designs.

  
  

5. Application Industries

This machine is perfectly suited for manufacturing 650ml PET bottles for:

• Carbonated Soft Drinks (CSD)

• Still and Sparkling Water

• Edible Oils

• Juices and Non-Carbonated Beverages

• Household and Chemical Liquids

In summary, this 4-cavity fully automatic PET blow molding machine represents a perfect balance of speed, precision, and reliability, making it a cornerstone asset for any modern, high-output bottling facility focused on the 650ml container market.