🔹What Size Chiller Do I Need?
Choosing the right chiller size is essential for ensuring stable cooling, improving product quality, and reducing production costs.
If your chiller is too small, it won't provide enough cooling.
If it's too large, you waste energy and money.
In this guide, we'll show you how to select the correct chiller size step by step.
🔹Why Chiller Size Matters
An incorrectly sized chiller can cause:
• Unstable temperature control
• Product defects
• Longer cycle times
• Increased energy consumption
For industries like injection molding and PET production, proper cooling is critical.
🔹 H2: Basic Chiller Size Calculation
A simple way to estimate chiller size:
Cooling Capacity (kW) ≈ Machine Power (kW) × 0.6
✅ Examples:
• 50 kW machine → 30 kW chiller
• 100 kW machine → 60 kW chiller
👉 This is a general guideline. Actual requirements may vary.
🔹 H2: Key Factors to Consider
1️⃣ Machine Power
Higher power machines generate more heat.
2️⃣ Material Type
Different materials require different cooling levels:
• PET → higher cooling demand
• PVC → moderate
3️⃣ Ambient Temperature
Hot environments need stronger chillers.
4️⃣ Production Output
Higher output = more heat = bigger chiller needed.
🔹 H2: Air Cooled vs Water Cooled Chiller
| Feature | Air Cooled | Water Cooled |
| Installation | Easy | More complex |
| Cost | Lower | Higher |
| Efficiency | Medium | High |
| Best For | Small–medium factories | Large production |
👉 If you are unsure, our engineers can recommend the best option.
🔹 H2: Common Mistakes When Choosing a Chiller
Avoid these mistakes:
• Choosing based on price only
• Ignoring ambient temperature
• Underestimating cooling load
• Not considering future expansion
🔹 H2: Recommended Chiller Sizes by Application
Injection Molding
• Small machines → 5–10 HP
• Medium → 15–30 HP
• Large → 40–100 HP
PET Bottle Production
• Typically requires higher cooling capacity
🔹 H2: Get Free Chiller Size Calculation
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Not sure what size you need?
Contact us with your machine details and we will recommend the best chiller model within 12 hours.
👉
• Get Free Quote ： Liz@dmgmachines.com
• WhatsApp Now : +86 13968871328
🔹 H2: FAQ
Q: What happens if my chiller is too small?
A: It will not provide enough cooling, leading to unstable production.
Q: Can I oversize a chiller?
A: Yes, but it increases cost and energy consumption.
Q: How accurate is the calculation formula?
A: It provides a good estimate, but professional evaluation is recommended.