This 630 CFM Propane Vacuum is the most powerful cordless vacuum around. The ultimate in large model dust control.

Designed to hook on behind the Stone Extreme and powerful enough to handle the combined output of more than 3 running heads. This vacuum will also be a fine "stand alone" unit, capable of consuming all the concrete dust from 3 walk behind Stone Grind machines.

Propane powered engine - no site electricity or generators required. This unit could stand in the middle of the job site, or powerful enough to remain outside and still handle the load.

Features:

• Oversized filter, extended duty cycle
• Low filtration velocity
• Easy filter maintenance
• Extremely long life up to 7 years
• 99.95% efficient @ 0.5 microns
• longer vacuum cycles
• No dust in exhaust: Garanteed!
• Very maneuverable
• Foot lever activated dust pan
• Large heavy duty casters
• Drop down slide out dust pan
• Dust Free Emptying

Fully self contained unit has a 55 gallon pre-separator system designed to recover most of the dust before it enters the filter housing. over 80 square feet of filter media serve well to handle dust control, even if you're grinding with 30 grit diamonds. The vacuum has a timed reverse filter purge, rotating from filter to filter, cleaning the filter media off as you go along. This means you'll never have to shut down to clean filters off and no bags to beat out.

• Long Life Oversized Dustless filter system, 99.9% @ .5 microns.
• Continuous Duty Vacuums
• Automatic motorized filter shaker control for easy filter maintenance
• Tipping mechanism and fork lift pockets for dust collection container
• Propane engine for continuous 24/7 operation
• Maxflo multistage turbines with relief valve
• Inclusive sound suppression for quiet operation
• 9-gallon collection capacity for filter debris with Lever Actuated Drop Down Dust Pan for easy emptying
• Heavy duty non-marking casters: rear with locking brakes
• Battery start
• HEC 14 Pre-SEP system
• Cyclonic Inlet separates 95% of debris prior to entering the filter
• 55 gallon dust collection capacity
• Powder coated steel housing
• EPA & CARB approved