• They have higher production rates (anywhere from 400 - 1200 sf/hour, depending on size and application)



• Are more expensive than smaller grinders



• They perform better in large open spaces, better for larger commercial jobs

Smaller machines tend to work better for smaller jobs. Here are some rules of thumb about smaller machines, such as the Pro Grinder 15” and Pro Grinder 20”

• They can move quickly through tight places, good for smaller residential jobs



• Cost less than the larger machines



• Production rates typically from 100 – 400 sf/hour



• Can fit through any standard doorway

Pick the right power source

Depending on the jobs you tend to do, you may prefer a gas machine, or a 110 Volt or 220 Volt electric machine.

• 110Volt – This is a great option for contractors who do residential work. A 110 Volt grinder can simply be plugged into an ordinary outlet. This will save you from having to bring a generator to the job.



• 220volt – With a 220 Volt grinder, you can have the option of a variable speed machine. Variable speed machines are preferred for polishing.



• Gas – Gas powered gives you the benefit of not having to worry about cords. If you anticipate doing many outdoor jobs, gas may be the best option for you.

Consider what you will be using the grinder for

What kind of work you will be doing will also play a major role in your decision.

• Exclusively Grinding - If you plan on using the machine exclusively for grinding (coatings removal/ profiling), a single speed machine may be a better choice.



• Both Grinding and Polishing - If you will be using your machine for both grinding and polishing, you will want to look at a machine that is variable speed. If the machine is too fast or too slow you could end up with damage to the diamonds and floor.