Husqvarna makes heavy-duty industrial vacuum systems with all-metal construction meant for constant hard use. Husqvarna's vacuums are designed specifically to be coupled to its surface preparation equipment.

The larger Model DC 5500 is powered by a 7.4-hp motor, rated 32 amps, using 380/480 V service. It generates an air flow of 350 cfm and maximum vacuum of 4.35 psi. It stands 77 inches high, weighs 474 pounds, and lists for about $15,600.

Model DC 3300 is a single-phase unit that runs on three 1100 W motors, for 4.43-hp output, rated 16 amps, using 220/240 V service. It generates an air flow of 325 cfm and maximum vacuum of 4.35 psi. The DC 3300 stands 60 inches high, weighs 214 pounds, and lists for about $7600.

Both machines have 3-inch-diameter suction inlets to accommodate either wet or dry applications and both achieve a particle filtration rate of 99.9% at 1 micron. They feature a unique bag disposal system for containment of messy and hazardous substances. www.husqvarna.com