FIELD: agricultural engineering. SUBSTANCE: berry bush grinding tool has shaft and succession of saws mounted on shaft through bushings at opposite angles with respect to one another and to shaft axis. One saw of paired saws is rigidly fixed on shaft and other saw is mounted on bushing for free rotation with respect to shaft. Compensation spring is located inside bushing and counterweight is put on saw disk. Saw bushings are spaced by adjusting washers. EFFECT: increased quality of bush grinding due to rotational speed difference of adjacent saws and provision for additional grinding of bushes into fractions of various length. 3 dwg
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