In today’s PET packaging market, the automatic PET bottle blowing machine has become a key system for water plants, beverage factories, and OEM producers. Market data shows PET bottle demand grows about 6%–8% yearly. So machine choice directly impacts profit.
Many buyers face the same issue. Specs look similar, but output is different. The reason comes from air system, mold design, and cooling performance.
PET Bottle Blowing 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 |
Who Needs an Automatic PET Bottle Blowing Machine?
The conclusion is simple. Factories above 10,000 bottles per day should consider automation.
We usually see three types:
- Small water plant: 5,000–15,000 bottles/day
- Medium beverage factory: 20,000–80,000 bottles/day
- OEM export plant: 80,000+ bottles/day
The automatic bottle blowing machine fits medium and large factories better.
💡 Tip: Compare labor cost over 3 years, not machine price.
How Is Output Calculated for Automatic PET Bottle Blowing Machine?
Conclusion: a 2-cavity system produces around 2000–2800 BPH for 500ml bottles.
Output depends on:
- preform weight
- heating system
- air pressure stability
I once saw two same models. Output gap was 20%. Cause was unstable air supply.
💡 Tip: Always test compressor pressure fluctuation.
Key Systems of Automatic PET Bottle Blowing Machine
1. Air compressor system
Provides high pressure for bottle forming.
2. Air dryer system
Removes moisture and avoids foggy bottles.
3. Water chiller system
Controls mold temperature for stable output.
Where Is Automatic PET Bottle Blowing Machine Used?
Conclusion: it covers more than water bottles.
Applications:
- bottled water
- carbonated drinks
- edible oil bottles
- cosmetic packaging
- pharma bottles
- cleaning chemicals
- milk bottles
water bottle blowing machine is most common, but oil and cosmetic are growing fast.
💡 Tip: Each bottle type needs a different mold.
Case Study: South Africa Customer
A customer named Mark used a semi-auto line before.
Problems:
- only 1800 BPH
- high labor cost
- unstable quality
We installed a PET bottle blowing machine system.
Results:
- output reached 4200 BPH
- scrap reduced 35%
- 2 workers saved per shift
He said:
“Now the line runs smoother, no chaos.”
Plastic Bottle Moulding Machine Vs Blowing Machine
Conclusion: they are part of one system.
Plastic bottle moulding machine is a general term.
Automatic pet bottle blowing machine focuses on PET blowing.
Check:
- material type
- bottle size
- cavity number
- output target
Choosing an automatic PET bottle blowing machine is not just about price.
Key factors are:
- stable output
- energy use
- air system quality
- long-term maintenance
It is a long-term investment for factories.
