How to Produce High Quality Bag-In-Box?

Jan 06, 2026

Bag-In-Box is a flexible packaging solution widely used for liquids such as beverages, food ingredients, chemicals, and industrial fluids. It typically consists of a multi-layer inner bag made from high-barrier films, a dispensing tap or valve, and an outer corrugated carton for protection and handling. Its core functions include safe storage, contamination prevention, extended shelf life, and convenient dispensing.

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The overall quality of a Bag-In-Box is determined not only by material selection, but also by critical production processes such as precise film sealing, accurate valve insertion, stable welding strength, dimensional consistency, and leak-free performance throughout filling and transportation.

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To achieve these quality requirements, Bag-In-Box making machines play a decisive role.

Characteristics of Mingli Bag-In-Box Making Machines that enhance the quality

  Integrated production capability: Bag-In-Box making machines combine automated bag forming, valve welding, precise sealing, and in-line quality control into a single, continuous production line.

  High sealing accuracy: Precise sealing systems ensure strong, uniform welds, effectively reducing the risk of leakage and improving product safety.

  Stable heat control: Advanced temperature regulation guarantees consistent sealing performance, even during high-speed or long-duration production.

  Consistent output quality: Automated operation minimizes human error, resulting in uniform bag dimensions and stable product quality.

  Reduced defect rates: Accurate process control significantly lowers the occurrence of sealing defects, misalignment, and material waste.

  Improved production efficiency: High automation and optimized workflows enable faster production cycles and higher throughput.

DLP-1300BIB bag-in-box intelligent bag making machine (1)

Mingli Bag-In-Box Production Lines

If you are a Bag-In-Box manufacturer, Mingli recommends the following machine models:

Model ML-1300BIB ML-1600BIB
  Material Size   Film Width: 1350mm, Roll Diameter: 800mm   Film Width: 1600mm, Roll Diameter: 800mm
  Bag Size   Longest 800mm per double, Maximum Width 1300mm   Longest 800mm per double, Maximum Width 1600mm
  Fuselage Size   20000mm×4890mm×2380mm   26000mm×4890mm×2380mm
  Fuselage Weight   9T   20T
  Bag-making Speed   18 pcs/min   20×4 pcs/min

ML-1600BIB bag-in-box intelligent bag making machine (1)

You can use any of these machines to produce Bag-In-Box products, all of which deliver outstanding and consistent product quality. In addition, Mingli is able to provide customized adjustments across different machine models to match your specific production requirements.

Beyond producing high-quality Bag-In-Box packaging, customers who have previously invested in our bag making machines also highly praise their cost-saving performance and long-term operational efficiency.