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Is the A95 right for me? Is a different shot blaster a better option? Do I need a grinder instead of a shot blaster? We can’t answer …

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How Does a Shot Blaster Work?

Learning how a shot blaster works will help you get the most out of your A95, A96, and A97. The fundamentals of shot blasting are universal, but the operator experience is leagues above the rest with National Flooring Equipment’s Apex Series of Shot Blasters.

Shot blasters work off of two main principles – rebound and suction. The blast wheel propels the shot at the hard concrete. The shot then bounces (or rebounds) back up. This momentum carries the shot partially, but not fully, through the machine. This is where the suction part of the equation takes over.

Once the shot rebounds part way up the machine, your paired dust collector will pull the shot the rest of the way. It’s important that you pair an appropriately rated dust collector with your shot blaster. With too much suction, your dust collector will pull still-usable shot out of your machine. Too little suction and your shot blaster will drop shot because there isn’t enough force pulling it through.

When the shot is pulled to the top of the machine, dust and small pieces of shot are sucked into the dust collector. Any pieces of shot intact enough to be cycled through will cascade down into the shot hopper. The shot will pass through a screen at the top of the shot hopper. This screen filters out things you may have picked up (e.g. cotter pins, nails, other small pieces of metal) to prevent damaging your machine.

In the image below, the blue arrow shows the travel path of the shot and the yellow arrow shows the travel path of the air.

Pair your A95 with a DL2000.

Pair your A96 and A97 with a DL3000 or DL4000P.

Learn more about pairing a dust collector with your shot blaster here.

surfacepreparation #concrete #grinder #concretegrinding.

surfacepreparation #concrete #grinder.

Meet the Helix®, the most versatile 110 volt planetary grinder on the market. Learn the basics of the machine, the options you …

Removing epoxy coatings from a concrete substrate can be done in multiple ways.  When using a walk-behind or ride-on scraper to remove epoxy coatings, tooling choice is critical.

Begin by setting your standard blade and blade holder aside. This applies to either a walk-behind or ride-on scraper. Fit your scraper with a Razor Blade Holder and a 1-inch blade.  This video shows a National rider with the 7092 blade. This blade is 1″ x 8″ x .094″ and is designed for use with a Ride-on or walk-behind scraper.

This method of removal will peel back the epoxy coating with precision, leaving a bare concrete floor for a light grind.

Both of National’s planetary grinders are 110 volt, use the same tooling, and even pair with the same vac… so what’s the difference …

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