External filter vacuums are powered by compressed air, and are ideal for heavy-duty industrial wet/dry applications such as recovery of metal shavings, sawdust, machine oil, sand and water that require strong suction power. They feature a large collection tank, sometimes with a tip-and-pour function, on front swivel castors for easy transport and stability. An external collection bag and filter allow the recovery of wet and dry material without stopping for a filter change.
A hose attaches to the tank for wet/dry collection of debris. The air compressor system maintains a lower psi at the gauge for light debris and a higher setting up to 100 pounds per square inch for maximum suction.
posted on 5/13/2011
Celebrating BSCAI's 60th Anniversary eBook
The Down and Dirty on Cleaning in Virus Season
How Surfactant Use is Expanding in Commercial Cleaning
Boost Cleaning Efficiency and Sustainability in Just 40 Minutes