Zhejiang Mingli Machine Technology Co.,Ltd.
If you’ve ever picked up a pouch of juice, shampoo, or even cooking oil, chances are it was made using a liquid bag forming machine. These machines take flexible film rolls and turn them into leak-proof pouches, ready to hold anything from drinks to detergent. The process is mostly automatic — the film unrolls, gets shaped into a bag, sealed on the sides, and then cut to the right size. Some machines even add spouts or zippers, depending on what kind of bag you want.
Liquid bag forming machines serve a wide range of industries where safe, hygienic, and efficient liquid packaging is critical. Beverage manufacturers, dairy producers, and juice companies rely on them for high-speed production of stand-up pouches and spout bags. In the household chemical sector, they are widely used to pack products like detergents, shampoos, and liquid soaps. Even the agricultural and pharmaceutical industries depend on liquid bag machines for packaging fertilizers, crop protectants, or oral medical liquids. If your product needs a flexible pouch that can hold liquid safely and withstand transportation stress, you are likely a candidate for this technology.
You’re not stuck with just one kind of bag. These machines can make a wide range of pouch styles, depending on your needs:
3-side seal bags – simple and great for single-use products
Stand-up pouches (Doypacks) – perfect for retail shelves
Spout bags – easy to pour and reseal, popular for baby food and sauces
Shaped pouches – eye-catching and ergonomic
4-side seal pouches – flat and durable, often used for chemicals or medicine
Just keep in mind: the more complex the bag, the more features your machine might need (like spout welding or custom cutting).
Liquid packaging demands materials that are durable, heat-sealable, and offer good barrier properties. Most liquid bag making machines are designed to work with laminated films made of two or more of the following layers:
PET/PE: A common choice for food-grade liquid packaging
PET/AL/PE: Offers light and oxygen barrier for longer shelf life
NY/PE: Excellent puncture resistance for industrial use
BOPA/PE: Flexible yet strong, suitable for paste-like liquids
CPP or Metallized films: Sometimes used for cosmetic or luxury products
Compatibility with these materials ensures that the machine can support a variety of applications without compromising safety or performance.
Buying one of these machines is a big step, and not cheap, so here are a few things to think through first:
What kind of bag do you need? Not all machines can handle all styles.
How many bags per minute do you need? Entry-level machines might do 30–50 bpm, while industrial ones go way faster.
What kind of film are you using? Double-check the machine can seal it properly.
How automated do you want it? Some machines are plug-and-play with touchscreen controls. Others need more hands-on work.
Can you get service and parts locally? A reliable supplier makes a big difference down the road.
Will it fit in your factory? Don’t forget to check the footprint and power requirements.
Getting the right machine means fewer problems later, and smoother production from day one.
The above is our ML-2400 for liquid bags. Click the picture to know more!
