1 x 2.2KW Square Air Cooled Spindle Motor ER20 (220V,24000rpm,4bearings,400Hz,Runout-off≤0.01mm). 2.2KW ER20 Square Air-cooled Spindle motor Engraving milling Grind. Collet size: ER20. 24000RPM/ER20 Collet and Nut/4 Bearings.
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