Description
Strict OSHA Table 1 rules penalize contractors who create airborne silica clouds while running concrete hand grinders. The Nilfisk ATTIX 33-21 IC HEPA solves compliance demands with certified HEPA filtration, auto-start tool control, and an 890W motor generating 148 CFM. The 8 Gallon drum fills fast under continuous tuck-pointing, requiring planned work pauses to dump heavy debris.
Rotomolded structural polyethylene constructs the 8 Gallon tank, rejecting wall punctures from falling chisel bits and rough transit. An auto-start sensory relay starts the vacuum motor in sync with the connected grinder, while InfiniClean blasts reverse air through the filter every 15 seconds. The sealed HEPA chamber seats against closed-cell foam gaskets, ensuring zero dust bypass. Clean bypass airflow cools motor copper windings without exposing armatures to abrasive crystalline quartz dust.
OSHA Table One Matrix
Restoration tradesmen connect concrete grinders straight to this machine for certified point-of-origin silica capture. Antistatic hardware components prevent painful static shock arcs during dry extraction passes.
- Certified HEPA filter captures 99.97% of hazardous dust particles down to 0.3 microns
- Auto-start power receptacle fires the vacuum motor in sync with handheld electric power tools
- InfiniClean automatic filter cleaning pulses reverse air every 15 seconds to prevent suction drop
- Antistatic suction hose dissipates electrical charges to ground during dry grinding operations
- 890W commercial motor pulls 148 CFM and 92-inch water lift for deep dust shroud extraction
- 8 Gallon heavy-duty polyethylene canister survives jobsite drops without cracking or leaking
- Flat motor top accommodates modular tool storage cases via optional adapter brackets
Motor Load Dyno Telemetry
Line current pulls 7.5 Amps on 120 Volt service under loaded suction without an auxiliary tool running. Powerhead housing temperatures elevate 36°F above room ambient after 50 minutes of continuous concrete cutting. Bypass cooling exhaust air hits 116°F during sustained heavy vacuum resistance. Static water lift drops 7-inch water lift across the 13-foot antistatic hose run. Sound level meters record 60 dBA at 10 feet under open flow, climbing to 65 dBA as pulse valves cycle.
Jobsite Bounds Maintenance Rules
The 32-pound chassis rolls true across grooved concrete, but dragging the unit up steep ladders requires crane rigging or hand carrying. Floor prep outfits operating 20-inch planetary floor grinders must pass on this model, because high dust volume fills the 8 Gallon basin within minutes. Sucking wet epoxy mortar or uncured adhesive sludge will gum up the pulse valve and ruin the HEPA element.
- Verify electrical ground continuity on the antistatic hose using an ohmmeter once per month
- Inspect the certified HEPA cartridge seal once per week for dust trails that indicate bypass
- Change the fleece filter bag before dust weight causes seam blowouts during extraction
Commercial Warranty Package Manifest
Nilfisk backs this machine with a 2-Year commercial warranty covering motor, electronics, and InfiniClean components. The unboxed container delivers the 8 Gallon vacuum, PTFE filter, certified HEPA cartridge, 13-foot antistatic hose, power tool adapter, curved wand, extension pipes, floor nozzle, and fleece bag.