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Diamond grinding is typically used to level uneven pavement and to roughen surfaces for skid resistance. It has low dust levels, removes epoxies and urethanes but is slower than other methods. Some diamond grinders can also leave swirl marks in the slab if you're overly aggressive.
Some of the advantages of a diamond ground pavements include:
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• Provides a smooth surface that is often as good or better than a new pavement
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Enhances surface texture and friction
and there is no evidence of deleterious effects
• These improvements reduce the potential for small-vehicle hydroplaning
• Does not significantly affect fatigue life of a pavement
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Does not affect material durability unless the coarse aggregate is a soft stone subject to polishing
• May be applied only where is needed, however, spot grinding is generally not usually recommended
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Restoring smoothness to faulted or curled concrete highways
Improve skid resistance
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Level doorway entrances
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Smooth driveway approaches
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Scratch Coat Grinding / Sanding |
This method is achieved by attaching various sized grit sanding pads to the concrete floor grinder. It prepares, cleans and abrades existing coatings for recoat. This process removes thin layer coatings and provides texture for two coatings to bond together. This method is slow and intensive. This technique works for coatings that were recently applied and that need to be touched up with an additional coating. This type of sanding is often refered to as "Scratch and recoat".
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 Onfloor 16 Floor Grinder / Scarifier / Sander
This is Onfloor 16 Floor Grinder / Scarifier / Sander comes complete with either the Red Diamond Concrete Plates OR The Carbide Scarifier blades. It runs on 115V and has a 16" head.
ONFLOOR™ Technologies presents Onfloor 16™ — a revolutionary new tool in floor preparation. More than just a sander, Onfloor 16™ helps bring new life to concrete surfaces, decks and hardwood floors. Onfloor 16™ is powerful enough for demanding industrial jobs, yet light and simple enough for home use. And the exclusive patented design of Onfloor 16™ works to provide superior results with minimum effort. So not only will you be sanding like a pro in just a few minutes, you’ll be finished just as quickly.
With Onfloor 16™, you can remove years of wear from just about any concrete surface. Our exclusive Red Diamond Concrete Plates are embedded with a coarse diamond grit that will quickly ready your floor for any coating application. And if your concrete floor has a coating that doesn't require removal, the Red Diamond Concrete Plates will abrade the surface and remove the gloss. Plus, when fitted with the powerful Carbide Scarifier Attachments, Onfloor 16™ helps remove most coatings and hard, brittle adhesives. The Carbide Scarifier blades are available for this machine as well.
Frequently Asked Questions
Instructional Video for Concrete Prep
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 BW Manufacturing DG-16 Diamond Grinder/Polisher
The DG-16 has the ability to grind within 1" of a vertical surface. The flexibility between grinding and polishing, and the virtually dust free operation when connected to BW Manufacturing's A-101 Pulse Vac makes the DG-16 an excellent addition to the surface preparation contractors line of equipment. What sets the DG-16 Diamond Grinder/Polisher apart from all the others is the design, concept, and innovation. The DG-16 has a rubber mounted non-planetary grinding head that where down pressure controlled by spring pressure. With the combination of the wheels a floating, head and specially designed diamonds, you are able to grind or polis without scaring or gouging of the concrete, even on cracks and expansion joints. With the ease of diamond cutter and polishing pad installation and removal, the contractor won't lose production due to lengthy diamond tool changeovers. This machine is a 220 Volt Electric Unit.
FEATURES / SPECIFICATIONS:
Cleaning Path: 16”
Side grind clearance to wall: 1”
Front grind clearance to wall: 6”
Wheels: 2 - 4 Inch Rigid / 2 - 4 Inch Swivel
Height: 29”
Length: 24”
Width: 18”
Weight: 210 Lbs. (Electric) / 225 Lbs. (Gas)
Motor Options: 5 HP 220 Volt single phase / 5 HP 440 Volt three phase /11HP Gas (Honda)
Seal System: Brushes
Control Handle: Fully Adjustable
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 Metabo W23-230 Angle Grinder- 9" - 6,600 RPM - 15.0 AMP
Features:
Robust Metabo Marathon motor
High efficiency and increased torque by optimum heat dissipation
Die cast aluminium gearbox housing
Spindle lock
Additional VibraTech handle for vibration damping
Rotating main handle without tools
Protective cover adjustment without tools
Metabo safety switch: lock against unintentional start
Metabo coil guard
Auto-stop carbon brushes
Versatile applications by the extensive range of accessories
Specifications:
Grinding wheel diameter 9 "
Torque 150 in-lbs
No-load speed 6600 /min
Rated input power 2300 W
Output power 1580 W
Rated load speed 4600 /min
Spindle thread 5/8" - 11 UNC
Weight (without mains cable) 10.8 lbs
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 On Floor 16" Grinder Belts
These set of three belts are the replacement belts for the Onfloor 16 Floor Grinder. 16" Belts
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| On Floor 20" Grinder Belts
These set of three belts are the replacement belts for the Onfloor 16 Floor Grinder. 20 " Belts
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 OnFloor 16" Red Diamond Heads
The On Floor 16" Red Diamond Attachments are for new or old concrete, removes thin mil coatings, removes latents containments, and opens pores in unfinished concrete. Estimated coverage for a set of 3 attachments is 8000 sq ft. Also used for abraiding existing concrete for recoat.
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| OnFloor 20" Red Diamond Heads
The On Floor 20" Red Diamond Attachments are for new or old concrete, removes thin mil coatings, removes latents containments, and opens pores in unfinished concrete. Estimated coverage for a set of 3 attachments is 8000 sq ft. Also used for abraiding existing concrete for recoat.
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