High-speed spindles are liquid-cooled.

Position::Precise Corp. - Brief Article
 
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The Precise Corp will introduce two high speed electric spindles at IMTS--the Type SC 70174 and the SD 5084. The SC 70174 170mm spindle has power up to 21 kW and a maximum speed of 40,000 rpm. It has an HSK 50E toolholding system and oil-air lubrication. The SD 5084 is an 80 mm spindle with a 500 to...

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