Description
Sustained shop grinding fills standard vacuum drums with sharp, glowing debris that burns through thin plastics. The Nilfisk AERO 31-21 PC INOX pairs an 8 Gallon stainless steel canister with a 120V motor generating 125 CFM and 84-inch water lift. Semi-automatic filter cleaning demands manual operator intervention, which interrupts production sanding runs when fine dust clogs the filter.
Formed 304 stainless steel creates a rigid collection container that resists puncture damage from sharp metal turnings and corrosive coolants. An onboard power-tool socket incorporates an auto-start relay, firing the vacuum motor in synchronization with connected electric sanders. The dual-path cooling motor passes separate ambient air across the copper commutator, preventing internal contamination from metallic dusts. Aluminum fan impellers maintain tight balance at speed, eliminating high-frequency vibration against the tank rim.
Auto Start Hardware Matrix
Metal fabricators and woodworkers connect power tools direct to this machine for simultaneous dust capture at the tool arbor. Heavy mechanical latches lock the motor deck to prevent suction loss.
- Integrated power tool outlet features auto-start capability to sync vacuum operation with handheld tools
- 8 Gallon 304 stainless steel canister provides impact resistance against sharp turnings and dropped parts
- 120V motor generates 125 CFM and 84-inch water lift for deep chip extraction
- Push-and-Clean system clears blinded filter media using a reverse burst of atmospheric air
- Washable PET fleece filter media stops 99.9% of coarse shop dust down to 1 micron
- Steel drum clamps provide strong mechanical pull against the perimeter tank gasket
- Rubber accessory straps secure electrical cables and extension tubes to the housing frame
Dyno Telemetry Heat Testing
The unit draws 8.6 Amps base load on 120 Volt power, supporting up to 600W through the auxiliary power tool socket. Motor dome temperatures rise 39°F above ambient after 50 minutes of continuous synchronized cutting. Air exhaust ports vent 119°F air when running under sustained tool extraction drag. Suction loss checks in at 8-inch water lift through a standard 11-foot antistatic hose. Sound pressure registers 64 dBA at 10 feet under open airflow, reaching 70 dBA under heavy filter loading.
Application Limits Service Directives
The 23-pound chassis rolls true across flat concrete, but the top-heavy motor deck requires deliberate two-hand lifts into tall work vans. Heavy concrete scarifying teams must avoid this model, as high-volume crystalline dust overpowers the manual filter pulse system within minutes. Sucking reactive chemical solvents or gasoline spills will spark motor commutator fires and warp internal seals.
- Pulse the filter cleaning button three times at each work pause to clear the PET cartridge
- Verify power tool amperage draw stays below 6 Amps to prevent tripping the onboard breaker
- Empty metal chips from the canister at shift end to prevent standing moisture corrosion
Commercial Coverage Carton Roster
Nilfisk protects this unit with a 2-Year commercial warranty covering motor and electrical parts. The packaged box contains the 8 Gallon stainless vacuum, PET fleece filter, 11-foot hose, aluminum wands, floor nozzle, crevice tool, power tool adapter, and fleece collection bag.