2017 National Equipment 8274-4 

2017 National Flooring Equipment 8274-4

The 8274-4 is the only grinder on the market offering 3 HP at 115 volts while operating at a 230-volt level. With variable speed and a soft start to control its amperage draw, the 8274-4 adjusts to the needs of small or large jobs. The versatility of the 8274-4 is derived from its quick-change magnetic tooling to remove thin-set, coatings, adhesives, and high spots, prepare concrete and overlays for coatings, and sand and refinish wood flooring. Polishes floors to a high-gloss shine.

• Three-part adjustable angle handle

• Choose from 15A or 20A circuit-breaker settings with a convenient switch on the side of the controller; the 15A selection limits motor draw to 15 amps; 20A selection pulls up to 20 amps

• Forward and reverse directional controls increase tooling productivity with cleaner consumables and more even wear

• Variable speed control

• Dual rear vacuum ports

• Flip-style weights for added or decreased head pressure

• Removable handle and weights for easy transport

• 18-inch grinding path; uses Nationals patented self-tensioning, single-belt design to prepare concrete surfaces to a 3000-resin shine

• Adjustable velcro dust guard lets the machine operate within an eighth of an inch of walls and promotes nearly dustless operation

• Grinder head rotates 90 degrees for easy tooling change access; Morflex couplers, polishing undulating concrete surfaces or creating a uniform scratch pattern for coating applications; operates a complete dry grind and polish system to eliminate messy and hazardous slurry