How to Choose a Blown Film Machine: Based on the Film You Run and Your Output Needs

Investing in a blown film machine is a major step for any plastic packaging business. The right machine can boost your output, improve film quality and reduce material and energy costs. But with so many models, configurations and technologies available, how do you make the right choice?

At Zhuxin, we understand that every manufacturer has unique needs. Whether you are producing shopping bags for local retailers, heavy duty industrial sacks or biodegradable films for eco conscious brands, choosing the right blown film extrusion line starts with a clear understanding of your product type, output goals and material requirements.

Let us break down the key factors to help you find the best fit.

1. Know Your Film Application

The first question to ask is what kind of film you will be producing. Your answer will shape your entire machine selection.

Are you making shrink film for packaging bottles or electronics? You will need a machine with precise thickness control and high clarity.

Producing agricultural films such as greenhouse covers or silage wraps? Look for wide width capability and strong UV resistance.

Focusing on liquid packaging bags or food packaging? A multilayer coextrusion line with barrier resins like EVOH ensures freshness and shelf life.

For everyday items like shopping bags, garbage bags or industrial packing bags, a reliable single layer or 3 layer machine with high output is often ideal.

And if you are entering the growing market for sustainable packaging, our energy efficient lines work well with biodegradable films and bags as well as express bags made from PLA, PBAT or other compostable materials.

Visit our Plastic Film Applications section to see how our machines support each industry with tailored solutions.

2. Match the Machine to Your Output Needs

Consider your production volume. Machines come with different screw sizes such as 55mm, 65mm and 90mm, each designed for specific output ranges. A small to medium operation might need between 80 and 150 kg per hour, while high-efficiency lines can reach up to 200 kg per hour depending on the film structure and material. Choosing the right machine ensures you meet your production goals without over-investing in capacity you won’t use.

3. Decide on the Number of Layers

Single layer machines are cost effective for basic films. But if you want better performance and material savings, consider a 3 layer or 5 layer coextrusion system. These allow you to combine different resins, using expensive barrier or functional materials only where needed, while keeping outer layers economical.

4. Prioritize Energy Efficiency and Automation

Modern blown film lines should help you save energy and labor. Features like electromagnetic heating, variable frequency drives and internal bubble cooling can reduce power consumption by up to 70 percent. Automated gauge control and central computer systems ensure consistent quality and reduce operator workload.

5. Choose a Trusted Supplier with Real Support

Your machine is only as good as the support behind it. Look for a manufacturer that offers not just equipment but also installation guidance, operator training, spare parts and technical troubleshooting, especially if you are in a remote market.

At Zhuxin, we design and build high performance blown film machines that are built to last. Our Products section features a full range of solutions from compact single layer lines to advanced multilayer coextrusion systems, each engineered for stability, efficiency and ease of use..

Still not sure which machine is right for your project?

We get it. Every production environment is different. That is why our technical team is ready to help.

Cotact us today via email at inquiry@zhuxinmachine.com or on WhatsApp at +86-13968935808.

Tell us about your materials, target output and film type, and we will recommend the best Zhuxin machine for your needs. No guesswork required.

Make the smart choice. Let Zhuxin power your next production success.