National GP 18 Grinder & Polisher

The GP18 propane series is productive, durable, easy to use, and virtually maintenance free. It can be used to prepare concrete floors for topical coatings, overlayments, and adhesive floor coverings including removal of thin set mortar, mil and epoxy coatings, mastic and carpet adhesives, as well as polish floors to a high gloss shine.
Description The GP18 propane series is productive, durable, easy to use, and virtually maintenance free. It can be used to prepare concrete floors for topical coatings, overlayments, and adhesive floor coverings including removal of thin set mortar, mil and epoxy coatings, mastic and carpet adhesives, as well as polish floors to a high gloss shine. This machine is also fully adaptable to applications such as terrazzo, marble, and granite.

A. Powerful Kawasaki 18HP LP oversized motor offers variable speed drive, ranging from 2200 to 3650 RPM
B. 11-gallon, onboard, high-impact, polyethylene water tank and simple operator controls permit versatility through both dry and wet cutting action
C. The portable pocket-weight system provides additional down-pressure control in tough jobsites; positioning weights into handle pockets reduces head pressure and allows for easy mobility during transport
D. Adjustable powder-coated, 1/8-inch, mill-steel shroud can be locked in and easily raised during wet grinding applications, or lowered for virtually dust-free drygrinding applications
E. Additional transport wheels
F. Dual vacuum hose to single port
G. Counter-rotational tooling holders are mounted on a morflex coupler, allowing the diamond tooling to flex and adapt to undulations in the floor; results in smooth, consistent operation with minimal lagging or pulling
H. The laser-cut gears, immersed in a synthetic oil bath, are protected from dust or water infiltration by ½- inch cast-aluminum gear housing, containing no rubber belts
I. Rugged 3/16-inch steel-stock frame J. 1/2-inch-thick, urethane-clad, cast-iron, custom wheels

GP18 Production Rates
• Thin-set removal: 425 square feet per hour/ 40 square meters per hour
• Mil-coating and epoxy removal: 225 square feet per hour/21 square meters per hour
• Concrete polishing: 575 square feet per hour/ 53 square meters per hour
• Mastic removal: 375 square feet p
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