GRINDER

摘要

PURPOSE: A polishing device is provided to improve productivity and economic efficiency by conveniently and efficiently performing polishing work. CONSTITUTION: A polishing device(1) comprises a first main frame(100), a wheel assembly(200), a driving unit(300), and a polishing unit(400). The wheel assembly supports the first main frame to be able to roll on the surface(5) of a polishing object. The driving unit electrically drives the polishing unit including a driving motor. The polishing unit is rotatably connected to the first main frame, and polishes the surface of the polishing object.