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Concrete grinders are powerful tools that can make a big difference in prepping concrete for a new coating. Whether you’re a DIY enthusiast or a professional contractor, understanding the options will help you achieve the best results.
Designed for small jobs and tough to reach spaces, this 16-inch planetary concrete grinder creates the perfect profile for new coatings. This easy-to operate floor grinder has a built-in edge grinder, dual-speed operation, an adjustable handle, and floating dust skirt for maximum efficiency.
This powerful, 110V machine will prep and polish concrete up to a 3000-level polish. The 8274-4 is a planetary grinder powered by a 3 HP motor. Built in soft start to control amperage draw, and an upgraded box, this 110V machine runs at a 230V level.
The GP500 concrete grinder is portable, compact, and powerful. Designed to take any of the puck or wedge shaped tooling National offers, the GP500 will prep concrete and polish to a high shine 3000 grit finish.
The GP700 grinder and polisher is ideal for prepping concrete floors for topical coatings, overlayments, and adhesives while also providing the variety of tooling and power needed to deliver a beautifully polished floor.
The GP3000 is a heavy-duty concrete grinder for large square foot projects. Similarly to National’s other large grinders, the GP3000 takes a variety of prep and polish tooling in puck or wedge shape. With estimated production rates around 1000 sq ft p/hour this grinder this high-capacity grinder puts in the work. The 28-inch cleaning path increases grinding head pressure and makes it an ideal machine for commercial and industrial projects.
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