High-Speed Water Bottle Blow Molding Machine
High-Speed Water Bottle Blow Molding Machine
This linear, two-step automatic PET stretch blow molding system is engineered for high-volume production of water and beverage containers ranging from 0.2L to 2.0L. Utilizing a servo-driven mold clamping and clamping-synchronization mechanism alongside a continuous rotary heating unit, the equipment achieves stable outputs between 2,000 and 12,000 bottles per hour (BPH) across 2 to 8 cavity configurations.
Built on an integrated heavy-duty steel chassis, the system minimizes mechanical vibration during high-speed operation, maintaining precise preform distance control and consistent material distribution across light-weighted PET preforms.
Key Product Features
Servo-Driven Clamping & Stretch Motion: Full-servo control eliminates hydraulic contamination risk, reduces mold open/close cycle time to under 0.4 seconds, and ensures precise wall thickness distribution.
Infrared Rotary Heating Oven: Short-pitch heating lamps with independent multi-zone temperature controls reduce power consumption by up to 30% compared to traditional quartz tube heating.
Air Recovery System: Captures high-pressure exhaust air (up to 30–35 bar) from the blowing stage and recycles it back into low-pressure pneumatic circuits (6–8 bar) for pre-blowing and mechanical actuation, cutting air compressor energy consumption by 20–25%.
Modular Mold Quick-Change: Bottom mold positioning pins and quick-lock mold plates enable a full tooling changeover in under 30 minutes with 2 operators.
Technical Specifications
|
Parameter |
2-Cavity |
4-Cavity |
6-Cavity |
8-Cavity |
|
Output (BPH for 500ml Water) |
2,500–3,000 |
5,000–6,000 |
7,500–9,000 |
10,000–12,000 |
|
Container Capacity Range |
0.2L – 2.0L |
0.2L – 2.0L |
0.2L – 1.5L |
0.2L – 0.75L |
|
Max. Bottle Diameter / Height |
105 mm / 330 mm |
105 mm / 330 mm |
90 mm / 310 mm |
75 mm / 280 mm |
|
Neck Finish Size Range |
18 mm – 38 mm |
18 mm – 38 mm |
18 mm – 38 mm |
18 mm – 30 mm |
|
Blowing Air Pressure |
3.0 – 3.5 MPa |
3.0 – 3.5 MPa |
3.0 – 3.5 MPa |
3.0 – 3.5 MPa |
|
Operation Control Pressure |
0.8 – 1.0 MPa |
0.8 – 1.0 MPa |
0.8 – 1.0 MPa |
0.8 – 1.0 MPa |
|
Installed Power / Operating Power |
32 kW / 18 kW |
58 kW / 32 kW |
85 kW / 48 kW |
110 kW / 62 kW |
|
Cooling Water Flow / Pressure |
40 L/min @ 3 bar |
80 L/min @ 3 bar |
120 L/min @ 3 bar |
150 L/min @ 3 bar |
|
Machine Dimensions (L × W × H) |
3.2 × 1.8 × 2.1 m |
4.2 × 2.1 × 2.2 m |
4.8 × 2.2 × 2.2 m |
5.5 × 2.3 × 2.2 m |
|
Total Weight |
~3,800 kg |
~5,500 kg |
~7,200 kg |
~9,000 kg |
Available Configurations Or Options
Air Recovery Unit: Closed-loop high-to-low pressure air recovery system with built-in filtration and receiver tanks.
Neck Cooling & Hot-Fill Kit: Enhanced neck-shield water cooling circuits and high-temperature mold oil heaters for CSD (carbonated soft drink) or hot-fill PET bottles up to 88°C.
Automatic Preform Elevator & Unscrambler: Variable-speed belt conveyor with optoelectronic jams-detection and auto-rejection of misaligned preforms.
Integrated Air Compressor Package: Optional matching 30–35 bar high-pressure piston or screw compressors, air dryer, and multi-stage oil mist filters.
Applications
Still Bottled Water: Standard, ultra-lightweight (e.g., 9.5g for 500ml), and premium glass-like thick-bottom PET water bottles.
Carbonated Soft Drinks: Pressure-resistant petaloid bottom bottles requiring uniform material expansion at high blowing pressures.
Hot-Fill Juices & Teas: Heat-set PET bottles processed with heated mold temperatures to prevent container deformation post-filling.
Personal Care & Household Chemicals: Symmetrical or custom-contoured PET containers up to 2.0L.
Product Selection Considerations
To select the correct cavity count and machine specification, consider:
Target Bottle Weight vs. Output: Ultra-lightweight preforms (<11g for 500ml) require higher heating control precision and faster stretch speeds.
Compressor Capacity Matching: Ensure existing air systems supply 3.0–3.5 MPa dedicated high-pressure air at required CFM ratings based on cavity volume.
Neck Finish Dimensions: Standard 28mm PCO1810/1881, 29/25, or 30/25 necks determine collet and heating spindle tooling sizing.
Quality Inspection And Testing
Mechanical Run-In: 72-hour continuous dry-cycle factory acceptance test (FAT) verifying cycle times and servo indexing precision.
High-Pressure Leak & Burst Test: Random sampling of blown containers under 1.5× operating pressure to verify structural integrity.
Wall Thickness Uniformity Audit: Ultrasonic wall thickness measurement across 5 key bottle cross-sections (finish, shoulder, body, base, heel).
Customization And Supply Scope
Scope of Delivery
Base Blow Molding Unit with Heating System
Automatic Preform Elevator and Orientation Unit
1 Set of Aluminum/Steel Bottle Molds (per buyer drawing)
Spare Parts Kit (Sealing rings, stretch nozzles, heating lamps, pneumatic valves)
Options for Customization
Custom bottle design engineering and 3D preform/mold prototyping.
PLC interface localization (English, Spanish, French, German, Portuguese).
Brand-specific component integration (Siemens / Schneider PLC, Festo / SMC pneumatics, Sew-Eurodrive / Yaskawa servos).
FAQ
Q: What is the typical lead time for production and delivery?
A: Standard machines require 30 to 45 days. Custom bottle designs or non-standard mold dimensions add approximately 10–15 days for mold CNC machining and sampling.
Q: Can one machine run multiple bottle sizes?
A: Yes. A single machine can process different bottle volumes (e.g., 330ml, 500ml, 1.5L) provided they fit within the cavity pitch and max dimension specs.
Changing bottle sizes requires replacing the mold sets and adjusting preform spacing rails.
Q: What utilities are required on site prior to installation?
A: 380V/440V 3-Phase 50/60Hz electrical supply, 3.0–3.5 MPa high-pressure air source, 0.8–1.0 MPa low-pressure control air, and a closed-loop water chiller (water supply at 10–12°C).
Q: What PLC and pneumatic component brands are installed as standard?
A: Standard builds feature Schneider/Siemens PLC and touchscreens, Festo or SMC pneumatic valves, and Delta or Yaskawa servo systems.
Q: What is the expected lifespan of the blowing molds?
A: Molds CNC-machined from high-grade aircraft aluminum (7075-T6) or stainless steel typically exceed 8 million blow cycles under recommended cooling water quality conditions.
RFQ Call to Action
Need a customized plant layout drawing or energy efficiency analysis for your production line?
Submit your bottle 2D/3D drawings, target hourly output (BPH), and preform specifications below. Our engineering team will return a customized technical proposal, factory footprint layout, and utility consumption report within 24 hours.
[ Request a Technical Proposal & Layout Drawing ]
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