If you are running a larger shop, and will use your coffee grinder to grind more than a few pounds of coffee per hour, you should choose a coffee grinder from the "Commercial Coffee Grinders" section. With the possible exception of the Rancilio MD 40 coffee grinder, which can grind up to 8 pounds of coffee beans in an hour, the coffee grinders here are not meant for very heavy use.
But if you are running a small coffee shop, the coffee grinders in this section may suit your needs. Do not get a coffee grinder smaller than the coffee grinders in this section for commercial use.