They have used mobile vacuum units with a water filter, in which the extracted dust passed through two stages of water containers then through a bag type filtration stage. The cleaning and maintenance for these were tedious and filter cleaning with compressed air created explosion risks.
We have now replaced it with a solution of HVUX units with automatic filter cleaning, which was the key factor affecting the decision. The solution includes a start/stop integration so that the vacuum starts when they run their machines, and continues to run for 30 seconds after shut down so that no dust is left in the ducts. It also inculdes a ground monitoring system which prevents the HVUX units from starting if proper static grounding is not present.
Installation was completed within two weeks including ducting, power and automation signal cabling and integration to their existing production line.
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