| 摘要 |
The tool has a motor (M) above the protective casing (1), the output shaft (11) of which drives the horizontal rotor shafts (5), each of which has a rotor cage (4) in a transmission casing (15) driven by a pulley (12) on the output shaft via a two-stage reduction gear (21). - The rotor cages can thus be offset in two overlaying rotation motions so that the surface being machines has no groove marks and is more even, No self-driving force acts on the tool. The rotor cages rotate in opposite directions to eliminate the ''shadow'' effect.
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