Product Description
The 6-cavity linear automatic PET blow molding machine is a high-performance stretch blow molding system designed for the efficient production of PET bottles ranging from 250ml to 2,000ml in volume. With a production capacity of 5,000 to 6,000 bottles per hour, this machine is ideal for medium to large-scale water bottling plants, beverage manufacturers, and container production facilities.
Built on a linear configuration with a cavity pitch of 114.3mm, the machine offers stable operation, quick mold changeover, and consistent bottle quality. It accommodates a wide range of bottle neck sizes from 18mm to 38mm and handles container heights up to 420mm.
The machine integrates fully automatic feeding, intelligent heating, servo-driven clamping, and precision stretch-blow systems – all controlled by a PLC with a user-friendly touchscreen interface. Key components are sourced from internationally recognized brands, ensuring long-term reliability and low maintenance costs.
Key Features
1. High Production Capacity
Delivers 4,000–4,200 BPH for 250ml bottles (38mm neck) and up to 6,000 BPH for standard 500ml bottles, making it suitable for medium to large-scale production requirements.
2. Energy-Efficient Heating System
Infrared heating with reflective panels maximizes heat utilization, reducing heating time and energy consumption. The closed-loop temperature control system maintains consistent heating regardless of voltage or ambient temperature fluctuations.
3. Servo-Driven Precision
All critical movements – feeding, conveying, clamping, stretching, and preform spacing – are controlled by servo motors for high precision, smooth operation, and repeatable accuracy.
4. Superior Bottle Quality
Uniform heating, precise stretching, and consistent clamping produce bottles with excellent wall thickness distribution (up to 4.5mm), high transparency, and minimal parting lines – suitable for both still and carbonated beverage applications.
5. Wide Bottle Compatibility
Supports bottle volumes from 250ml to 2,000ml, neck sizes from 18mm to 38mm, and heights up to 420mm. Quick mold changeover enables flexible production switching.
6. Reliable Components
Key electrical and pneumatic components are sourced from internationally recognized brands including Schneider Electric, Mitsubishi, Parker, and AIRTAC, ensuring stable operation and long service life.
7. User-Friendly Operation
Touchscreen interface with PLC control provides easy parameter adjustment, real-time monitoring, and fault diagnostics. The system automatically generates production reports for each shift.
8. Air Recycling System
High-pressure blow valves can be configured for low-pressure operation. Exhaust air from the blow molding process is recovered and reused in low-pressure cylinders, reducing energy waste.
Company Profile
Shine Dew Technology focuses on water, beverage, and packaging equipment projects, covering standalone machines, complete lines, engineering planning, and after-sales coordination. For products such as 5 Gallon ISB molding machines, our team supports solution matching from equipment selection to project delivery, helping customers reduce communication cost across procurement, installation, and production start-up.
We work with customers on equipment selection, line matching, technical communication, and follow-up service, so upstream bottle manufacturing can connect more smoothly with downstream washing, filling, capping, and packaging systems.
How the System Works
Step 1 – Automatic Preform Feeding
Scattered preforms are loaded into the hopper and automatically arranged in order. A servo-driven system positions each preform at precise intervals for consistent feeding. A sensor on the unscrambling track monitors preform supply and triggers an alarm when low – without stopping production.
Step 2 – Intelligent Heating & Conditioning
Preforms travel through the heating oven where infrared lamps with reflective panels ensure uniform heating. The oven features a self-adjusting closed-loop temperature control system that compensates for voltage fluctuations, maintaining constant temperature regardless of environmental changes. Preforms rotate continuously during heating for even wall distribution, enabling wall thickness up to 4.5mm. The system is designed to operate reliably in extreme temperature conditions ranging from -28°C to 45°C.
Step 3 – Conveying & High-Speed Step Positioning
A single servo motor drives the high-strength conveying chain and coordinates three simultaneous actions: preforms entering the oven, preforms reaching the blow station, and finished bottles being discharged. The PLC-based positioning system uses high-precision rotary encoders and proximity sensors for accurate indexing.
Step 4 – Servo-Driven Clamping & Mold Closing
A servo motor with reducer drives the mold closing and opening through synchronous belt transmission. The 360° rotary motion completes one full clamp cycle per revolution. High-pressure gas cushions the clamping action, reducing mold impact and minimizing visible parting lines on finished bottles.
Step 5 – Stretch & Blow
Servo-controlled stretching with adjustable timing for primary and secondary blowing. Each stretch rod can be independently adjusted for different preforms and bottle shapes, offering high flexibility.
Step 6 – Cooling & Ejection
Chilled water circulates through the molds for rapid cooling. The cooling system beneath the oven protects the bottle neck during heating. Finished bottles are ejected and conveyed out for downstream filling or packaging.
Logistics Information
- Standard export packing is prepared according to machine structure and transport safety requirements.
- Shipping method can be arranged by sea, rail, or combined logistics based on destination and delivery schedule.
- We can support shipment documents, loading coordination, and installation preparation before arrival.
Parameter Table
The following specifications can be used to review model configuration, production capacity, and project matching requirements.
|
Max. Container Volume |
2,000 ml |
|---|---|
|
Max. Container Diameter |
105 mm |
|
Neck Size Range |
18 – 38 mm |
| Max. Container Height | < 420 mm |
|
Max. Preform Length |
< 120 mm |
|
Clamping Stroke |
130 mm |
|
Bottom Mold Stroke |
30 mm |
|
Bottle Pitch |
114.3 mm |
|
Production Capacity |
4,000 – 4,200 BPH (250ml, 38mm neck); up to 6,000 BPH (500ml) |
|
Number of Cavities |
6 |
|
Heating Zones |
5 |
|
Heating Lamp Layers |
8 |
|
Preform Holder Capacity |
100 |
| Voltage |
220 / 380V |
|
Frequency |
50 / 60Hz |
|
Consumption |
20 – 25 kW/h |
|
Installed Power |
105 kW |
|
Low-Pressure Air Pressure |
1.0 MPa |
|
Low-Pressure Air Consumption |
2.0 – 3.0 m³/min |
|
High-Pressure Air Pressure |
3.5 MPa |
|
High-Pressure Air Consumption |
4.0 – 5.0 m³/min |
|
Cooling Water Pressure |
2 – 4 bar |
|
Cooling Water Flow Rate |
6 m³/h |
|
Machine WeightApprox. |
4.5 tons |
|
Machine Dimensions (L×W×H) |
5,900 × 2,100 × 2,100 mm |
| Preform Unscrambler (L×W×H) |
2,750 × 1,500 × 3,029 mm |
