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Sanitary big-bag filling line with accurate weighing installation for baby milk powder, including shuttle transfer system for discharging big-bags from the high-care (clean room) to the low-care section via an airlock. Placing the big-bags on pallets takes place outside the sanitary room.

The complete line must comply with the applicable EHEDG and ATEX regulations. The stringent hygienic requirements demand special attention to avoid bacterial risks and prevent product contamination. In addition, all parts must be easily accessible and easy to clean.

The client has chosen TBMA for this project because of our expertise and experience with the engineering, installation and commissioning of comparable sanitary big-bag installations.


  • Big-bags: 600 -1,000 kg, with inner liner
  • Product: Baby and infant milk powder
  • Filling capacity: 14 big-bags (FIBCs) per hour
  • Lifting capacity: 1.500 kg


TBMA has developed an integrated filling line in which big-bags are filled and weighed and then transported from a high-care to a low-care room. These spaces are separated by a double airlock.

Each big-bag is hung with the loops on the easily accessible self-releasing hooks, after which the filler hose is connected dust-free by an inflatable. The filling accuracy is achieved by an ultrasonically vibrating metering valve. Because they are filled suspended, straight and stable big-bags are created.

The entire installation is suitable down to every detail for dry cleaning between product changes within an acceptable timeframe.

See how it works? Check out the video High-care big-bag filling line

Components and systems

  • TBMA big-bag filling system Type CVB / F-3-1500 with vibrating table
  • Suspension frame with automatically rotating suspension hooks
  • Double-walled filling head with bag-spout clamping mechanism
  • Dust extraction system
  • Liner inflation system
  • Calibrated weighing
  • Unique dosing valve with ultrasonic vibration for accurate dosing
  • Electromechanical lifting system
  • Pallet drive-in and drive-out shuttle
  • Airlock system for transport to the low-care area
  • Bag-on-pallet installation with dispenser
  • Control panel and software
  • Project design and management


In addition, we realised an update of the above project. The filled big-bags were sometimes stored for a longer period of time, which created the risk of product degradation. For this, the client switched to special big-bags with a gastight inner bag.

TBMA has adapted the installation in order to achieve airtight multiple hot sealing of the big-bag liners. The bag is vacuumised by using a special valve in the big-bag liner and then injected with nitrogen. This way the shelf life of the product is significantly extended.


TBMA designs and supplies rotary valves, diverter valves and other components for the processing of bulk solids goods. Our high-end equipment is suitable for conveying powders and granules in almost all industries.

Our components:


TBMA are specialists in the design and supply of components and systems for bulk solids handling. Our extensive range of high quality processing equipment is suitable for handling powders and granules with proven reliability in practice in a variety of processing industries. The highly qualified and experienced TBMA staff are well able to translate your requirements into the right execution and application of our components. We also offer the design and execution of complete projects, thus providing you with an efficient, reliable and sustainable solution for your process.

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