1 x2.2KW Air cooledspindle motor ( ER20,24000rpm,4 bearings,400Hz, 80x230 mm ). 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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