Heavy Duty Line Vac Recycles Spent Abrasive Blast Media

I have run into another very good use of the Heavy Duty Line Vac and wanted to share this with you. A customer had contacted me from overseas. His interest was to apply Heavy Duty Line Vac to his abrasive media blast cabinets. The cabinets have a hopper filled with media that feeds a spray gun which accelerates the media toward a target work piece to remove anything from paint, to oxidation, oil and any other stubborn stains that might persist. That hopper is filled with Aluminum Oxide powder which is very abrasive and thus very good at the task of abrasive blasting.

150125

The problem was in determining how best to replenish the hopper without having to stop and shovel the media back up to the feed hopper. In comes the EXAIR Heavy Duty Line Vac model 150125. The Heavy Duty Line Vac was fitted to a pipe which is connected to the tapered bottom of the media blasting cabinet. As the media falls down into the bottom, the Line Vac creates a powerful suction which conveys the Aluminum Oxide powder back up to the hopper for re-use.

The key to success for this application is the construction of the Heavy Duty Line Vac. These models are constructed from a hardened alloy material. This material  makes for our most abrasion resistant model series available. Applications like this one where a stainless steel Line Vac might last 3 months, a Heavy Duty model can last 18 to 24 months or more of constant usage. Results will vary depending on application factors but there is no doubt that the Heavy Duty Line Vac is a highly reliable and effective tool to have for abrasive media conveying.

Neal Raker, Application Engineer
nealraker@exair.com

Video Blog: Line Vac Abrasion Resistance

This video explains a bit about how a Line Vac works and addresses the durability of hard coat anodized aluminum, stainless steel and hardened alloy when conveying abrasive materials. The results in the video show what happens when conveying walnut shells, ceramic tumbling media, steel tumbling media and ground glass.

Kirk Edwards
Application Engineer
kirkedwards@exair.com