Ruwac RB331 Pro “The Beast”

The Ruwac® RB331 Pro — “The Beast” — is the heavy-duty top of the Ruwac line, built for serious concrete grinding dust. With a powerful 330 CFM single motor and HEPA MAXX secondary filtration standard, it captures massive volumes of fine, hazardous dust and keeps it contained — while a silencer kit keeps it running quietly and continuous bagging makes disposal clean. When you’re grinding hard and need dust control that keeps up, this is the collector.

Call for pricing and availability, or request a quote — you’ll talk to a real surface-prep expert, not a call center.

Key Features

• 330 CFM single motor with 75″ of water lift — powerful pull for heavy dust volumes
• 120V — standard power, serious performance
• Dual-stage filtration standard:
  • MicroClean 28² primary filter — 99% efficient at 0.5 microns
  • HEPA MAXX compact secondary filter — 99.97% efficient at 0.3 microns
• External filter cleaning — dustless filter cleaning without opening the machine
• Continuous pull-bag system — clean, continuous dust disposal
• Silencer kit — quiet operation
• “Bulletproof” compression-cast composite housing — durable and rebuildable
• 2¾″ machined aluminum inlet with deflector
• Use up to 50 feet of hose — reach across large job sites

Why “The Beast”?

The RB331 Pro earns its name. Its 330 CFM is the most powerful in the Ruwac line we carry, built to keep up with heavy, continuous concrete grinding where lesser collectors fall behind. And it doesn’t trade filtration for power — HEPA MAXX filtration comes standard, capturing 99.97% of particles down to 0.3 microns. For big jobs, aggressive grinding, and demanding dust loads, this is the collector that keeps the air clean and the work moving.

True HEPA Dust Control — Standard

Concrete grinding produces respirable silica dust that’s a serious health hazard and OSHA compliance issue. The RB331 Pro comes with HEPA MAXX filtration standard — 99.97% efficient at 0.3 microns, true HEPA-level capture — so the finest, most dangerous dust is trapped, not recirculated. Combined with the dustless external filter cleaning and continuous bagging, it keeps silica dust off your crew from capture to disposal.

Specifications

• CFM: 330
• Water lift: 75″
• Motor: single motor, 120V
• Primary filter: MicroClean 28² (99% @ 0.5 microns)
• Secondary filter: HEPA MAXX (99.97% @ 0.3 microns)
• Inlet: 2¾″ machined aluminum with deflector
• Hose: up to 50 feet
• Collection: continuous pull-bag

Available Upgrades

• 32″ floor sweep — for general housekeeping
• Dust extraction arm
• Ruwac Continuous Bagging System — for extended continuous collection

Frequently Asked Questions

What’s it for? Heavy-duty industrial dust collection for demanding concrete grinding — high dust volumes, big jobs.

How powerful is it? 330 CFM — the most powerful Ruwac in our lineup.

Is it HEPA? Yes — HEPA MAXX filtration is standard, 99.97% efficient at 0.3 microns.

How much hose can I run? Up to 50 feet.

Order Your Ruwac RB331 Pro Today

Call (815) 941-4800 x 1 or fill out our contact form. See our dust collectors, Ruwac, and our how to choose a dust collector guide.