| 摘要 |
An abrasive grains classifying apparatus is used to classify abrasive grains based on their sizes that can be determined by distances between mutually opposed surfaces of the respective abrasive grains. The abrasive grains classifying apparatus is provided with: a first gap portion 35 which includes two rollers 24 and 32 disposed at a predetermined distance L2 from each other and also which classifies the abrasive grains 60 into first abrasive grains 60b and 60c capable of passing through between the rollers 24 and 32 and second abrasive grains 60a incapable of passing through between the two rollers 24 and 32; and a second gap portion 54 which includes two rollers 54 and 69 disposed at a distance L3 smaller than the distance L2 in the first gap portion 35 from each other.
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