[Case Study] Preventing Foreign Matter Contamination in the Filling Process - Triple-Layer Clean Booth

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last updated：Sep 11, 2025

蒲田工業

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Preventing foreign matter contamination in filling operations - Triple-layer clean booth

To introduce filling equipment for drinking water, it is urgent to improve quality through cleanliness. An environment that does not come into contact with outside air is required from the container washing machine to the filling machine. Issues: 1. Production is taking place in a warehouse environment that is not managed for air conditioning. 2. There is a possibility of foreign substances contaminating during the filling of gallon cans. 3. After container washing, the lids are still not closed, so there is a possibility of debris entering before filling.

Related Link - http://www.kamata.co.jp/html/solution/2008/02/post…

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A three-tier clean booth has been installed, with workers assigned to each room to prevent direct movement between rooms. A flow has been established to prevent foreign matter contamination within the production line. - A large booth W7250×D5000×H4500 (Class 1000) that includes a washing machine and work area to prevent exposure of gallon containers to outside air after boiling sterilization cleaning. - A medium booth W5050×D2960×H4000 (Class 1000) that includes a filling machine and inspection area. - A small booth W3350×D1650×H3100 (Class 100) that encloses only the critical areas from filling to capping. - A changing room, handwashing area, and air shower have been installed at the worker entrance.