RF21 Dust Extractor
Reverse Flow, 100% Continuous
FILTER CLEANING

Motor's Exhaust Air Keeps Filters Clean
NOT EXPENSIVE ELECTRONICS

•  120 Volt, 13.9 Amp
•  180 CFM, 110" H20
•  Size:  22.5" x 29" x 50.5"
•  Weight:  75 lbs.
•  Handles 20" Concrete Grinders

$3,695.00       
RF21 - 110 volt, 1700 Watt, 13.9 Amp, 180 CFM, 110" H20.  Handles 20" Concrete Grinders.

The New Standard in Concrete Dust Extractors

Backed by a Full One Year Parts & Labor Warranty

• 100% Automatic Filter Cleaning without using electronics
  

• Save on filters:  Ultra-web filters last longer, few filter changes, lower  replacement and labor cost, less production downtime.

Reverse Flow (RF) Technology

• Cleans the filters every 7 seconds
• Self-contained - filter purging using no electronic solenoids, external air supply, secondary power or operator assistance
• RF dust extractors maintain powerful suction naturally
• Grind for hours without having to stop to manually purge the filter
• Increase productivity and provide a better finished product.

Clogged Filters  Impact Everything

• White Glove Test - concrete polishing requires dust to be off the floor with each pass of the grinder

• The suction performance of manual filter cleaning vacuum naturally diminishes ... resulting in lost time to sweep the floor

• Even brand new filters are instantly compromised - within seconds - as the onslaught of incoming debris continues to load the filter and cause suction drop

• 100% Automatic Filter Cleaning is the only realistic way of assuring sustained suction.

Unbeatable Combination - Prevents this > > >

• 7-second "No Electronics" Reverse Flow Self-Cleaning Technology + Ultra-Web Cartridge Filters

• Requires less energy (amps) and compressed air to achieve better pulse cleaning results

• Keeps the dust on the filter's surface to help Reverse Flow perform at its top capacity

• Filter is completely re-useable and washable.

Additional Design Features & Benefits -

DEBRIS MANAGEMENT

• Debris collection and disposal - engineered for safety, ease of use and economical means of collection and disposal

• Innovative dump valve to empty the tank while in operation.

ON-BOARD TIMER.

• Tracks total hours on the job as well as lifetime of the dust extractor.

TWIN ASSEMBLY BRACKET

• Couple together two RF21s for more power and capacity

• Excellent for use on larger grinding projects

• Handles 25" concrete grinders.

What dust extractor is right for me? The choice is easy when you know the answers.        "There are three kinds of lies:  lies, damn lies and statistics."  - Popularized by Mark Twain   Problem With Statistics - while valuable, they fail to tell the complete story ...

Kut-Rite Manufacturing, USA As the equipment manufacturer of concrete grinders, scarifiers and dust extractors, it is easy for us to test, match and publish which pieces of equipment work best together.   "Our RF21 & 31 Dust Extractors, depending on the model, will handle all brands of 20" - 35" concrete planetary grinders ---  regardless of ours or the competitions' stated specifications." ---  We know it and we take great pride in that statistic. The Kutrite Team

TECHNICAL DETAILS
RF21 Dust Extractor Handles 20" Concrete Grinders Reverse Flow, 100% Continuous FILTER CLEANING Motor's Exhaust Air Keeps Filters Clean NOT EXPENSIVE ELECTRONICS   •  Ultra-Web Pleated Cartridge Filters, further enhances RF Automatic Filter Cleaning •  NO ELECTRONICS 100% AUTOMATIC FILTER CLEANING •  Unique debris disposal - safer, easier and economical •  Ergonomic cart with locking casters - easier handling and portability •  Hose inlet locking •  Aluminum construction eliminates corrosion and reduces weight •  Innovative electrical system protection •  Spacious internal motor head design for effortless maintenance.	FEATURE	SPECIFICATION
	Voltage	120 Volt
	Power	1700 Watt, 13.9 Amp
	Air Flow	180
	Water Lift	110"
	Noise Level	67 dB(A)
	Container Capacity	Plastic Bag (100 lbs.+) 5 Gal. Bucket (30 lbs.)
	Dimensions	22.5" x 29" x 50.5"
	Weight	75.0 lb.
	Electrical Approval	ETL-C, 25' Grounded Power Cord
	Collection Container	Plastic Bags 5 Gal. Bucket
	Hose	2" x 25' with Cuffs
	Chrome Wands & Tools
	HEPA Filter Option
	Warranty	1 Year