PET packaging demand continues to grow worldwide. Beverage, water, and personal care industries remain major users of plastic bottles. As a result, choosing the right plastic bottle moulding machine has become a key investment for many manufacturers.
Plastic Bottle Moulding Machine Parameter
| Water Bottle Blowing Machine | YG-2L-2 | YG-2L-4 | YG-2L-6 | YG-2L-8 |
| Cavity | 2 | 4 | 6 | 8 |
| Theory output | 2000-2700 | 4000-5000 | 6000-7200 | 8500-9000 |
| Max. volume | 2L | 2L | 2L | 2L |
| Bottle mouth maximum overall diameter | 80mm | 28-38mm | 28-38mm | 28-38mm |
| Bottle biggest diameter | 100mm | 100mm | 100mm | 100mm |
| Bottle maximum height | 330mm | 330mm | 330mm | 330mm |
| Light tube quantity | 16pcs | 40pcs | 64pcs | 32pcs |
| Light tube power | 1.5KW | 1.5KW | 1.5KW | 1.5KW |
| Maximum heating power | 24KW | 40KW | 80KW | 80KW |
| All-electric machine installation | 26KW | 60KW | 85KW | 85KW |
| Actual consumption | 19KW | 30KW | 40KW | 40KW |
| Work pressure | 7-9kg/c㎡ | 7-9kg/c㎡ | 7-9kg/c㎡ | 7-9kg/c㎡ |
| Low-pressure gas consumption | 1000L/min | 1600L/min | 1600L/min | 1600L/min |
| Blow bottle pressure | 25-35kg/c㎡ | 25-35kg/c㎡ | 25-35kg/c㎡ | 25-35kg/c㎡ |
| Higher-pressure gas consumption | 1500Ltr/min | 3000Ltr/min | 4000Ltr/min | 4800Ltr/min |
| Work pressure | 5-6 kg/c㎡ | 5-6 kg/c㎡ | 5-6 kg/c㎡ | 5-6 kg/c㎡ |
| Temperature range | 10℃ | 10℃ | 10℃ | 10℃ |
| Consumption | 5000kcal/hr | 8000kcal/hr | 8000kcal/hr | 12000kcal/hr |
| Frozen water flow | 30L/min | 88L/min | 88L/min | 88L/min |
| Size of the machine | 2.5*1.6*1.7 m | 4.5*2.0*2.3 m | 6.5*2.0*1.9 m | 6.7×2.0×2.3m |
| Weight of the machine | 2.0ton | 4.0ton | 5.5ton | 6.0ton |
Why Does Plastic Bottle Moulding Machine Output Vary?
Actual production can differ by 10% to 30%.
For example, two machines may both claim 3,000 bottles per hour. Yet different preform weights and cooling systems can create large output differences.
Key factors include:
- Preform weight
- Mold design
- Heating efficiency
- High-pressure air supply
- Cooling system stability
That is why buyers should evaluate the entire production system.
How Do You Choose the Right Plastic Bottle Moulding Machine?
We usually begin with two questions:
- What bottle size will you produce?
- What is your daily production target?
For 500ml water bottles below 20,000 bottles per day, a standard two-cavity machine is often enough.
For production above 50,000 bottles daily, a four-cavity or six-cavity system usually delivers lower unit costs.
For growing factories, the right match matters more than maximum speed.
What Are the Main Parts of a Plastic Bottle Moulding Machine?
Many buyers focus only on the machine itself. In reality, support equipment affects bottle quality.
Air Compressor System
High-pressure air expands the heated preform. Unstable pressure may create uneven bottle walls.
Air Dryer
The air dryer removes moisture from compressed air. Dry air improves bottle clarity and reduces surface defects.
Water Chiller
The chiller cools the mold after blowing. Stable cooling increases production consistency.
What Is the Difference Between a Pet Moulding Machine and a Bottle Blow Molding Machine?
A pet moulding machine usually refers to equipment used for PET bottle production.
A bottle blow molding machine focuses on the blow molding process itself.
In PET bottle manufacturing, the two terms often describe similar equipment. However, configurations can differ.
Before buying, confirm:
- Material type
- Bottle volume
- Production target
- Automation level
These factors matter most.
Customer Case: South African Customer Increased Production Efficiency
In 2024, a customer from South Africa named David planned to expand his bottled water business.
His old equipment produced about 1,800 bottles per hour. Scrap rates reached nearly 7%.
After evaluating the project, we recommended a four-cavity automatic bottle blowing machine and optimized the air and cooling systems.
After installation, output increased to around 4,800 bottles per hour.
At the same time, scrap rates dropped below 3%.
Six months later, the customer added another production line to meet local demand.
Choosing a plastic bottle moulding machine is not only about machine price.
Stable output, energy efficiency, mold quality, and maintenance cost are equally important.
For long-term growth, selecting equipment that matches production goals often creates better returns than simply choosing the fastest machine.
