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- 2026/4/30
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YUSHUN PET Large Water Bottle Blowing Machine – Designed for 5 Gallon / 20L Bulk Water Containers
YUSHUN is a professional manufacturer of blow molding machines, offering robust and reliable equipment specifically engineered for the production of large PET water containers. Our PET large water bottle blowing machine is designed for 5-gallon and 20L bulk water containers, serving the needs of bottled water companies, bulk water distributors, and packaging operations worldwide. With heavy-duty construction, efficient heating systems, and user-friendly operation, YUSHUN machines deliver consistent quality and high output for the demanding bulk water market.
The Growing Market for Bulk Water Containers
The demand for 5-gallon and 20L PET water bottles continues to grow across residential, commercial, and industrial sectors. From office water coolers to home delivery services, these large containers require specialized production equipment capable of handling thicker preforms, larger mold sizes, and higher clamping forces.
YUSHUN has developed its PET large water bottle blowing machine specifically for this application, combining power, precision, and efficiency in a single integrated system .
Key Features for Large Container Production
Heavy-Duty Clamping System
Producing 5-gallon and 20L containers requires substantial clamping force to keep mold halves securely closed during the high-pressure blowing process. YUSHUN machines feature a reinforced clamping system with:
High clamping force designed for large mold dimensions
Precise alignment for consistent bottle dimensions
Durable toggle mechanism for long-term reliability
Mold protection sensors to prevent damage from misalignment or foreign objects
The robust clamping system ensures that even the largest PET containers are formed with accurate dimensions and consistent wall thickness.
Advanced Infrared Heating Technology
Large PET preforms for 5-gallon and 20L bottles require thorough and uniform heating to achieve proper stretch ratios. YUSHUN machines utilize efficient infrared heating ovens with:
Multi-zone temperature control using PID regulation for precise heat management
Automatic preform rotation during heating for uniform temperature distribution
Adjustable heating profiles for different preform weights and sizes
Well-insulated oven design minimizing heat loss and energy consumption
Proper heating is critical for large containers, where uneven temperatures can lead to thin spots, weak bases, or poor clarity.
Pre-Blowing Function for Uniform Wall Thickness
Large containers demand precise material distribution to achieve the strength needed for filling, stacking, and transport. YUSHUN machines incorporate a pre-blowing function that helps achieve more uniform wall thickness throughout the final bottle . This feature is particularly important for 5-gallon and 20L containers, where consistent material distribution directly impacts container strength and durability.
High-Pressure Blowing System
PET large water bottles require higher blowing pressure than smaller containers to fully expand the preform against the mold cavity walls. YUSHUN machines are equipped with:
High-pressure blowing circuits capable of meeting the demands of large containers
Optimized gas flow for rapid mold filling
High-pressure air recovery systems to reduce energy consumption and save over 25% of compressed air
User-Friendly PLC Control
Operation of YUSHUN large bottle blowing machines is simplified through an intuitive PLC control system with touchscreen interface:
Digital temperature and pressure controls for precise process management
Recipe storage for different bottle sizes and specifications
Real-time monitoring of key operating parameters
Diagnostic capabilities for quick troubleshooting
Production Specifications
YUSHUN offers various models of PET large water bottle blowing machines to match different production requirements:
| Specifications | YS-B10L | YS-B20L |
|---|---|---|
| Max Container Volume | 10L | 20L |
| Theoretical Output | 300 pcs/hr | 120 pcs/hr |
| Cavities | 1 cavity | 1 cavity |
| Max Neck Diameter | 80mm | 120mm |
| Max Container Diameter | 260mm | 280mm |
| Max Container Height | 430mm | 450mm |
| Mold Thickness Range | 260-400mm | 300-450mm |
| Use Power | 12kw | 15kw |
| Working Pressure | 1.0 mpa | 1.0 mpa |
| Blow Pressure | <3.0 mpa | <3.5 mpa |
Data source: YUSHUN product specifications
Suitable Applications
The YUSHUN PET large water bottle blowing machine is ideal for:
5-gallon (18.9L) water bottles – Standard size for water coolers and dispensers
20L bulk water containers – For commercial and industrial water delivery
10L and 15L water jugs – For smaller bulk water applications
Large PET containers with handles – For easy carrying and pouring
Bulk beverage containers – For juices, edible oils, and other liquids
Semi-Automatic Operation for Flexibility
YUSHUN large water bottle blowing machines are designed as semi-automatic systems, offering the perfect balance of control and efficiency for bulk water production. Advantages of this design include:
Lower Initial Investment – Semi-automatic machines require less capital than fully automatic systems, making them accessible for growing businesses and startups entering the bulk water market.
Production Flexibility – With a simple design requiring manual preform loading, operators can easily switch between different bottle sizes with minimal downtime. The same machine can produce 10L, 15L, or 20L bottles by changing molds and adjusting settings.
Ease of Operation – The straightforward process requires minimal training, allowing new operators to become productive quickly.
Ideal for Small to Medium Production – For businesses producing 300 to 1,200 bottles per hour for larger formats, semi-automatic machines provide the right capacity without over-investment.
No Material Waste Advantage
Unlike extrusion blow molding machines, YUSHUN PET large water bottle blowing machines use a stretch blow molding process that eliminates material waste . There is no parison trimming or scrap generation, meaning every gram of PET material becomes part of the finished container. This efficiency reduces raw material costs and improves sustainability.
Quality Construction for Long Life
YUSHUN machines are built with:
High-quality pneumatic components from trusted brands for reliable operation
Durable mechanical construction to withstand continuous use
Easy maintenance access for routine service and adjustments
Energy Efficiency
Despite the high power requirements for heating large preforms, YUSHUN machines incorporate energy-saving features:
Efficient infrared heating with good insulation
Optimized cycle times to maximize output per unit of energy
High-pressure air recovery reducing compressor load
Applications Beyond Water Bottles
The YUSHUN large container blowing machine is versatile enough for other applications including:
Beer kegs – PET kegs for beverage service
Aquaculture floats – Large plastic floats for fishing and farming
Industrial containers – Custom large PET containers for various industries
Why Choose YUSHUN for Large Container Production?
As a specialized blow molding machine manufacturer, YUSHUN understands the unique requirements of 5-gallon and 20L PET water bottle production. Our machines are specifically designed to handle the thicker preforms, larger molds, and higher pressures that these applications demand.
Application Expertise – We know the bulk water market and design our machines accordingly.
Factory Direct Supply – Competitive pricing without distributor markups.
Comprehensive Support – Installation guidance, operator training, and ongoing technical assistance.
Proven Performance – YUSHUN machines are trusted by bottle manufacturers worldwide.
Conclusion
For businesses seeking to produce 5-gallon and 20L PET water bottles, the YUSHUN PET large water bottle blowing machine delivers the power, precision, and reliability needed for consistent, high-quality production. With robust construction, efficient heating, user-friendly operation, and the flexibility to produce multiple container sizes, YUSHUN machines are an ideal choice for bulk water producers of all scales.
Contact YUSHUN today to discuss your large container production requirements and learn how our PET large water bottle blowing machine can help grow your business.
