Description
Corrosive washdown environments and chemical cleanrooms ruin painted steel and plastic vacuums within months. The MetroVac CHV-S4 Stainless Steel 3-Speed handheld cordless canister vacuum resists harsh oxidizers with a polished stainless steel drum. It pulls 60 CFM using 250 Watts of power. Heavy metal chips from machining centers will jam the narrow hose swivel cuff.
The canister housing utilizes 300-series polished stainless steel that resists rust, acid exposure, and harsh sanitizing chemicals. An internal 250-watt brushless motor drives a solid aluminum impeller wheel mounted on dual sealed ball bearings. A high-density silicone gasket seals the motor housing against the stainless canister rim to stop bypass air leaks. Air exhausts through a closed-cell foam baffle that absorbs high-frequency motor whine while trapping residual carbon and micro-grit.
Stainless Steel Hardware System Matrix
Sanitary stainless steel construction meets cleanroom and food processing maintenance demands. Technicians toggle between three motor speeds to balance suction power against battery discharge duration.
- 250-watt brushless motor produces 60 CFM and 55 inches of water lift.
- 300-series polished stainless steel drum eliminates rust in damp washdown environments.
- 3-speed electronic power switch matches air velocity to fine dust removal tasks.
- 14.4 Volt lithium-ion battery pack provides cordless freedom without tripping hazard cords.
- Dual-stage washable textile filter captures fine particles before reaching the motor fan.
- Stainless steel extension wands maintain rigid reach without bending under downforce.
- Complete accessory tool kit provides specialized nozzles for machinery cracks and crevices.
Dyno Bench Vacuum Telemetry Metrics
On speed three, current draw pulls 17.2 Amps from the 14.4 Volt lithium pack under full aerodynamic resistance. Suction fan velocity reaches 28400 RPM while pulling 54 inches of water lift on our sealed manometer. Motor casing temperature rises by 27°F over a 15-minute continuous run, leveling off at 121°F. Sound meter instrumentation reads 71.5 dBA at 1 meter on maximum power. Airflow holds steady at 58 CFM until particulate buildup coats the internal textile filter element.
Shop Handling Field Boundaries
Weighing 4.7 pounds with battery, this stainless canister handles overhead conveyor and pipe cleaning without operator strain. Do not use this dry vacuum for liquid spills, chemical wash tanks, or flammable solvent vapors. Sucking wet liquids saturates the cloth filter, damages the battery terminal junction, and destroys the brushless motor turbine.
- Empty the stainless collection drum whenever waste reaches the halfway mark.
- Wash the cloth filter bag in warm water every thirty days and dry for 24 hours.
- Wipe the stainless canister shell with disinfectant after each cleanroom pass.
Commercial Warranty Delivery Manifest
MetroVac backs this stainless steel vacuum with a 1-Year commercial warranty covering the brushless motor and stainless canister shell. The kit includes the stainless steel vacuum, one 14.4 Volt lithium battery, a charger, a flexible hose, two stainless wands, a crevice tool, and a shoulder strap.


