Spray-in-air cleaning systems explained
Spray-in-air cleaning uses directed jets of cleaning solution to impact the board surface while suspended or conveyed, offering targeted cleaning without full immersion. This technique suits high-throughput lines and removes surface contaminants efficiently.
How spray-in-air systems operate
Nozzles deliver atomized or focused streams of cleaning fluid at controlled pressures and flow rates. Boards pass through multiple stations: wash, rinse, and optional secondary rinse, followed by drying. Conveyor speed, nozzle pattern, and droplet size determine exposure.
Operational considerations
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nozzle selection for droplet size and coverage
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controlled pressure to avoid component movement
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staged rinses to prevent redeposition
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integrated blow-off or heated drying for moisture removal
ZESTRON provides guidance on nozzle patterns and chemistry selection to optimize spray-in-air systems for different board types.
Benefits of spray-in-air cleaning
Spray-in-air provides efficient solvent or aqueous cleaning with reduced solution volumes compared to immersion. It handles large boards and heavy component populations with minimal tank management.
Benefits
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reduced solution consumption and waste footprint
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adaptable to varying board geometries
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integrates easily into inline production lines
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appropriate for both aqueous and solvent chemistries
ZESTRON’s process engineers help tune spray parameters and recommend chemistries that maximize cleaning while minimizing environmental impact.