Air Cooled Grinding Machine
( ER20 Aircooled Spindle Motor Inverter Drive VFD for CNC. 3KW ER20 Aircooled Spindle Motor Engraving Grinding Mill Grind Four bearings. 7) ER20 collet chuck. ... Grease Lubrication. This machine aircooled motor. It is much more easy for users to care and maintenn... CNC 4kw Aircooled Spindle Motor ER25 w/square edge ...