Why does powder packaging require special attention to dust control?
• Airborne powder contaminates the heat-seal jaws and sealing zone, causing seal contamination and weak seals; add dust extraction or negative-pressure suction.
• Dust arches and adheres to the auger, hopper and load cell, causing dosing deviation over ±1%; require sealed dust-proof metering.
• Combustible dust (flour, sugar) above the LEL ignites on sparks; specify ATEX/NFPA 652 explosion-proof dust collection.
• Dust entering the PLC cabinet, servo drives and photoeyes causes false trips; use positive-pressure or IP65 enclosures.
• In procurement, specify extraction air volume, filtration rating and collection method, and verify shop dust levels during FAT.
• Dust arches and adheres to the auger, hopper and load cell, causing dosing deviation over ±1%; require sealed dust-proof metering.
• Combustible dust (flour, sugar) above the LEL ignites on sparks; specify ATEX/NFPA 652 explosion-proof dust collection.
• Dust entering the PLC cabinet, servo drives and photoeyes causes false trips; use positive-pressure or IP65 enclosures.
• In procurement, specify extraction air volume, filtration rating and collection method, and verify shop dust levels during FAT.