5-Gallon Water Bottle Blow Molding Machine
5-Gallon Water Bottle Blow Molding Machine
This semi-automatic stretch blow molding system produces 3 to 5-gallon (11.3L–22L) PET water container bottles. Engineered for low-to-medium volume commercial water bottlers, it yields 60–100 bottles per hour (BPH) using preforms up to 700g.
The system utilizes an independent infrared preheating unit alongside a pneumatic clamping module to ensure consistent wall thickness distribution on large-capacity neck finishes up to 55mm. It is structured for rapid mold changeovers and one-person operational control.
Key Product Features
Dual-Stage Heating Architecture: Multi-zone infrared oven with independent digital temperature control modules for precise preform thermal profiling.
High-Clamping Pneumatic Toggle System: Double-crank 4-bar linkage mechanism providing 220–330 kN clamping force to eliminate parting line flash.
Integrated Inner Heating Assist: Optional secondary internal heating module ensuring complete neck-to-base material stretch on heavy preforms (>600g).
Industrial Safety Interlocks: Dual emergency stop circuits, photo-electric curtain protection, and two-hand startup buttons complying with CE mechanical safety standards.
Energy-Efficient Air Recovery: Multi-stage pneumatic circuit layout reducing high-pressure air consumption during stretch-blowing cycles.
Technical Specifications
|
Parameter |
Specification |
|
Container Volume |
10L – 25L (3 – 5 Gallons) |
|
Output Capacity |
60 – 100 BPH |
|
Raw Material |
PET / Polycarbonate (PC) |
|
Cavity Count |
1 Cavity |
|
Max Preform Weight |
800g |
|
Neck Diameter Range |
45mm – 55mm (Customizable to 100mm) |
|
Max Bottle Dimensions |
Height: 600mm | Diameter: 320mm |
|
Clamping Force |
220 kN – 330 kN |
|
Max Mold Plate (L x W) |
420mm x 500mm |
|
Operating Air Pressure |
Low Pressure: 0.8–1.0 MPa | High Pressure: 2.5–3.0 MPa |
|
Connected Electrical Load |
Main Machine: 2 kW | Preheater: 15–18 kW |
|
Power Supply |
380V / 3Ph / 50Hz (Customizable 220V/440V 60Hz) |
|
Machine Footprint (L x W x H) |
Blower: 2200 x 780 x 1850 mm | Heater: 2200 x 750 x 1850 mm |
|
Total Weight |
Approx. 1800 kg – 2500 kg |
Available Configurations Or Options
Heating System Options: Standard rotary infrared oven vs. double-row internal penetration heater for heavy preforms.
Valve & Pneumatics Grade: Standard AirTAC pneumatic valves or upgraded Festo/SMC high-pressure blow valve blocks.
Control System: Microcomputer PLC unit with text display or Siemens/Schneider touchscreen HMI.
Mold Adaptations: Standard 5-gallon round bottle mold, integrated side-handle mold, or custom ribbing geometry.
Auxiliary Equipment Package: High-pressure piston air compressor (3.0 MPa), refrigerated air dryer, precision filters, and mold water chiller.
Applications
Commercial Water Bottling Lines: 18.9L returnable or single-use refillable bottle production.
Office & Residential Dispenser Supplies: Standard 55mm crown-neck 5-gallon water jug production.
Industrial Liquid Packaging: Large-volume edible oil, liquid chemical, and bulk beverage containment.
Product Selection Considerations
Production Volume Requirements: Ideal for operations producing up to 800–1,000 bottles per 10-hour shift. Larger outputs require fully automated linear blowers.
Preform Quality & Weight: 5-gallon PET containers require consistent wall thickness preforms (typically 600g–750g). Insufficient preform design results in stress cracking or uneven bottom expansion.
Air Compressor System Sizing: Requires dedicated high-pressure air supply at 3.0 MPa (minimum 0.8–1.2 m³/min displacement) to ensure proper structural detail formation.
Power & Utility Infrastructure: Ensure stable 3-phase power supply capable of supporting continuous preheater draw (up to 25 kVA total load).
Quality Inspection And Testing
Every machine undergoes factory testing prior to shipment:
Dry Cycle Testing: 48 hours of uninterrupted mechanical toggle and pneumatic sequence operation.
Pressure Hold Test: Pneumatic circuit leak testing at 3.5 MPa for 12 continuous hours.
Trial Molding: Production of 100 sample bottles using buyer-specified preform weights.
Bottle Integrity Verification:
Top-load vertical strength test (minimum 150 kg rating).
Drop impact test (filled bottle drop from 1.2 meters without rupture).
Wall thickness distribution check via ultrasonic thickness gauge.
Customization and Supply Scope
Scope of Delivery
5-Gallon Stretch Blow Molding Unit (1 Cavity)
Infrared Preform Heating Oven
Standard 5-Gallon Aluminum Alloy Blow Mold (1 Set)
Wear Parts Kit (Heating lamps, seal rings, air tubes, ejector pins)
Operation & Electrical Wiring Manuals in English
Optional Customization
Custom bottle geometry, logo engraving, and handle mold integration.
Custom voltage transformer matching regional power grids (e.g., 208V/230V/460V 60Hz).
Turnkey auxiliary system skid integration.
FAQ
Q: What preform neck size does this machine accept?
A: The standard clamp accepts 55mm preforms. Custom clamping plates support neck sizes up to 100mm.
Q: Can this machine process Polycarbonate (PC) in addition to PET?
A: PET is the primary material. PC preforms can be blown using specialized high-temperature infrared heating profiles and adapted mold cooling settings.
Q: How many operators are needed to run this machine?
A: One operator manages preform loading, preheater positioning, and finished bottle retrieval.
Q: What auxiliary equipment is required for a complete setup?
A: You require a 3.0 MPa high-pressure air compressor, an air storage tank, a refrigerated air dryer, air filters, and a water chiller.
Q: What is the typical mold lead time for custom bottle shapes?
A: Standard 5-gallon molds ship within 10–15 days. Custom-designed molds with embossed logos take 20 days including sample approval.
Q: What warranty coverage applies?
A: Includes 12-month coverage on structural, mechanical, and electrical control components.
RFQ Call To Action
Provide your technical requirements below to receive a detailed quotation within 24 hours:
Target bottle drawing or sample dimensions (Volume, Height, Diameter, Neck Finish)
Preform specifications (Weight and Neck Finish)
Required daily output target (Bottles per day)
Local utility voltage and frequency (e.g., 480V 60Hz)
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