1 x 2.2KW AirC ooled Spindle Motor ER20 ( 80mm, 220V ,400Hz, 24000rpm, 4pcs bearing ). Speed: 0-24000rpm. 2.2KW ER20 Air-cooled Spindle motor Engraving milling Grind. Collet size: ER20 3.175 mm,4mm ,6 mm,8mm,10mm,12.7mm (one spindle with 1 collet).
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