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Surface Prep Grinders   >   Accessories   >   Hex Pin System   >   High Torque, Direct Drive Grinders
 

Hawk Concrete Floor Grinders & Slurry Vacuums.

Direct Drive Floor Grinders

American Made        USA Engineered

Price List
Hawk "Mini" Grinders - Sales Brochure.

 

Hawk Concrete Floor Grinder, 17" & 20".

Hawk Merlin 360° Severe Duty
Floor Grinders, 17" & 20"

-- USA Made --

Grinder in Action Video

 

 

17" and 20", 120 Volt, XHD - High Torque, Low 165 RPM

Hawk Concrete Floor Grinder - made in USA.Innovation and Modern Design --- Setting new records in production, easy of use, durability & versatility with minimal (if any) maintenance!

 

$3,631.00      
17" High Torque Floor Machine - Includes:

  • (1) 16-5/8" Diamond Driver Plate, includes:
    • Tooling slots (12):
      • (6) 3" round for diamond resin / semi-metal pads
      • (6) trapezoid diamonds
    • Plate weight:  39 lbs.
  • (4) 20 lb. weight plates
  • Built-in dust control
  • 50' x 12/3 x 2-pc locking cord
  • 1.5" HP TEFC 115/230v 60 Hz Motors.
USA Engineered & Made
--- HD, All American Components Built into Every Hawk Grinder

Description:

  • Hawk Floor Grinder - made in America.Power:

    • Dual Voltage:  120 or 240 volt, easy to switch - 7.9 maximum amp draw @ 120 volt

    • Motor:  TEFC (totally enclosed fan cool) - motor is protected from dust, debris and slurry

  • Gears:  11:1 Gear Ratio, Triple X-HD, Helical-Cut Industrial Gears.  Produces high torque to drive scrapers & metal diamonds with minimal amp draw

  • Floating Head:  ensures the tooling grinds and scrapes flat and fast, follows the floor’s contour, prevents dig and ring marks

  • Dust Control:  360° Internal Pick-Up - collects airborne dust and debris in the brush cover and directs it upwards to the 2" vacuum port.

  • Foot Operated Tilt Back for Easy Transporting

  • Dual steel operating triggers with negative pressure on/off switch

  • Disassembles for easy handling down stairs

  • 2" x 8" non-marking load bearing, ball bearing wheels

  • Thumb-operated safety switch with comfort cushion grips

  • Includes removal weights with (4) 20 lb plates and locking pins

  • Swing machine vs. wheels-down machine.Wheels-Down Machine - productivity improves 100% vs. using a wheels-up / swing machine (right.)  With a wheels-up / swing machine you are constantly fighting against its swinging movement especially during high torque grinding and coating removal projects.  Additionally, there’s a long learning curve and the worker's muscles are used to master its use and control.

    FACT:  For concrete grinding and coating removal, high torque is required.  With a wheels-down machine, unskilled workers can become experts within minutes and worker fatigue is reduced 120%.

  • PORTABLE - EASY TO TRANSPORT:  One man handling through doorways, down stairs, across rough terrain.

 

$3,798.00      
20" High Torque Floor Machine - Includes:

  • (1) 19-5/8" Diamond Driver Plate, includes:
    • Tooling slots (12):
      • (6) 3" round for diamond resin / semi-metal pads
      • (6) trapezoid diamonds
    • Plate weight:  39 lbs.
  • (4) 20 lb. weight plates
  • Built-in dust control
  • 50' x 12/3 x 2-pc locking cord
  • 1.5" HP TEFC 115/230v 60 Hz Motors.

 

Diamond Driver Plate - included with both models, 17" and 20":

  • Hawk Floor Grinder - diamond driver plate.Plate equipped with NP9200 Clutch Plate - easy attachment to the grinder's 3-tab driver
  • Plates accepts a complete assortment of diamond tools to scrape, grind, scarify, remove coating, polish, restore - concrete, granite, marble.

 

Optional Equipment (2):

6-Gal Solution Tank w/ Gravity Feed Hose Assembly$230.19      
6-Gallon Pro Solution Tank - With quick release gravity feed hose assembly.

 

Planetary Plate - For Concrete & Stone Polishing: 

  • (6) 3" Heads, Counter-Rotating, Spin @ 400 RPM.Increases driver speed from 165 to 400 RPM:

    • Diamond driver plate (included with the grinder), spins @ 165 RPM

    • Planetary plate spins @ 175 RPM, its individual diamond pedestal heads (6) spin @ 400 RPM each

  • Pedestal heads accepts 3" round, semi-metal and 100% resin polishing pads

  • Planetary plate equipped with its own metal clutch plate (see pic, left) - provides easy install, removal and protection of both the plate and grinder

  • Orbitec Diamond Driver Plate, with 3" (6) hook'n loop heads.Pedestal heads with hook’n loop facing, securely mount and hold the 3" round diamond pads

  • To order the planetary plate:  < click here > - select either the 17" and 20" plate.

 

Specifications

Model F75-17B
Machine Size 17"
Driver / Plate Size 16"
Tools / Plate 6
RPM 165
Max Amp Draw 7.9
Weight 233 lbs.
Model F75-20B
Machine Size 20"
Driver / Plate Size 19"
Tools / Plate 6
RPM 165
Max Amp Draw 8.5
Weight 235 lbs.

Specs - Both Models

Motor 1.5 HP, 180 frame TEFC Dual Capacitor AC
Power 120 - 240V
60 Hz power
Drive System Triple-XHD
11:1 Helical-Cut
Industrial Gears
Steel Drive Shaft Versus a fiberglass drive shaft (sold on standard 'janitorial' swing machines) that wears and breaks often
Wheels, Non-Marking 2" x 8", ball bearing
Vacuum Hose, Dust Port 2"
Approvals UL / CUL Listed
66 dB - Meets GS42 Standard
Disc Rotation Counter Clockwise
(as viewed from the handlebars)
Warranty 1-Year

Additional Features:

  1. DIAMOND DRIVERS - counter-rotating for ergonomically balance, ease-of-use and minimal learning curve.
  2. HIGH-TORQUE MOTORS - 1.5 HP TEFC AC motors (totally enclosed fan cooled) - motors are protected from dust and slurry.
  3. STEEL COUPLER - DIRECT DRIVE (vs. belt-drive):  plows through the thickest coatings and hardest concrete without blowing breakers or breaking the coupler and no belts to break.
    • Direct-Drive:  Industrial grade metal drive shaft, direct connection from the motor to the drive plate, produces far superior torque while only draws 14.9 amps
    • Belts & Pulleys:  design is used in planetary grinders to increase RPM speed which is great for polishing with resin pads.  Torque, however, is greatly diminished and torque is what is used to grind concrete and remove coatings.
  4. FLOATING HEAD - unique design provides 100% contact with the floor.  The heads flex by moving move up and down to the contour of the floor, self-adjusting to prevent scalps on bumps and provide a more consist, uniform finish. 
  5. WHEELS DOWN - machines steer in a forward and backward movement unlike the side-to-side movement of a swing machine which is hard to control ~ requires a long learning curve, often taking days to master. 
  6. 360° DUST COLLECTION - dust collection system is built into the head cover ~ will not disappoint. 

 

 

 

Diamond Driver Plates, 13" (2)Diamond Driver Plate
Plate accepts a complete assortment of tooling (shown below) for grinding, coating removal, polishing, and to scarify.

 

Hawk GP26 Grinder - diamond driver plate. Hawk GP26 Grinder - clutch plate. Hawk GP26 Grinder - diamond driver plate. Hawk GP26 Grinder - diamond driver plate.
100% USA Manufacturing
CNC Precision Made
Included insert blanks for recessed slots not being used. Plate accepts Metal Diamonds, PCD's, Resin Pads, Carbide Scrapers.

 

PLATE FEATURES:

  • Hawk GP26 Grinder - driver plate assembly.3/8" steel plate, powder-coated for corrosion resistance and easy cleaning

  • Damping isolators built-in to reduce vibrations and provide flex over high points and lippage

  • 3" round diamonds and standard size trapezoid tools are held securely in place by milled recesses and industrial magnets - tools are easy to change

  • Plate includes steel blanks, round and trapezoid, that fit in the unused recesses to prevent the unused openings from filling with debris

  • Equipped with metal 3-keyway clutch plate that fits the NP9200 clutch plate which is the industry standard for rotary grinders and buffers.  The clutch system prevents bodily injury and damage to the plate and grinder.

  • < Click here for additional info and to order the plate separately (plate is included with the above 17" and 20" machines) >.

 

 

Direct Drive vs. Planetary ~ Know Your Market.  The type of equipment needed starts with understanding the project size and your target market [i.e. concrete polishing vs. coating removal and grinding.]

Concrete Grinders  Can be characterized as planetary or direct-drive.  Understanding the difference between the two technologies will enable you to choose the right grinder to smooth, prep, level or polish a concrete floor.

Planetary Gearbox
  • Gear design allows the grinder to move in a straight line across the floor with relative ease, which means greater flexibility and less struggle for operators

  • Best used on less aggressive jobs such as smoothing out a concrete floor or preparing smaller floors for an epoxy coating

  • Gearbox is spread to 2, 3, 4 and more heads using a series of belts and pulleys

  • The design typically provides more torque during starting and then transferred to the individual heads for increased RPM which is beneficial for polishing

  • Extreme heavy-weight machines, typically 800 lbs. and above.  The weight offsets the faster RPM speed which many prefer for higher-productivity rates on grinding and removal applications.

Summary:  Exceptional for polishing and very large square-footage projects.

Direct- Drive Metal Gears
  • Gear design is a direct connection from the motor to the grinding head which maximizes energy and efficiency while reducing amp draw and avoids friction loss and wear that occurs with an offset planetary gearbox

  • Maintenance is minimal and the purchase price is less because the planetary gearbox is eliminated.

  • Direct connection from the motor eliminates belts and pulleys that are in planetary grinders

  • Design optimizes the grinder's weight and rotational speed while maintaining high torque which a planetary grinder does not

  • Skilled and unskilled users can take advantage of the direct drive / wheels-down design to perform more intensive tasks such as removing heavy mastic or thick layers of paint from a concrete surface.

Summary:  Exceptional for grinding, coating removal, polishing.

  • Maintenance is minimal if any

  • Easy to transport

  • Repair cost is minimal and not expense

  • Operates from a standard 120 volt, 15 or 20 amp circuit

  • Faster walking speeds but due to the path-width and scope of the project, multiple paths maybe required.

 Related Products

Diamond Tooling
The following diamonds install into the recessed and magnetic slots of the Diamond Driver Plate.

GRINDING / COATING REMOVAL POLISHING
Metal Diamonds
Hawk / HTC Tooling
Coating Removal
Hawk / HTC Tooling
Carbide Scrapers
Hawk / HTC Tooling
3" Round Pads
- Transitional / Polishing -
Std Size Trapezoid, Premium Quality - 2 Bar Std Size Trapezoid, Premium Quality - Coating Removal w/ Diamond Bar Carbide Scrapers - to scarify concrete. Semi-Metal & Resin Pads - concrete cleaning and polishing.

 

Dust Extractors

  • Compact, HD Built, Portable, Low 120 Volt Amp Draw

  • Recommended vacuums, replacement hoses and connectors.

Dust Pro 20-Gal:  3-Motor, 421 CFM Vac. Pearl - Reverse Pulse Dust Extractors, 3 Models 300 CFM Silica Dust Extractor - HEPA Cyclone Vacuum Hoses & Connectors.
< 421 CFM > < 258 / 285 CFM > < 120V, 300 / 450 CFM > < Hoses & Cuffs >
 

 

 

 

USA Dust Guard
  Div. of Scott Electric
--- Trusted Since 1946!
24 39th Street
(Lawrenceville, Strip District)
Pittsburgh, PA  15201

Open
Monday - Friday,  6:30 AM - 6:00 PM EST

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412 - 605 - 2992

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