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There are 800w, 1.5kw, 2.2kw, 3kw, 4kw, 5.5kw, 5.5kw atc, 6kw water cooled spindles.
Water cooled spindle speed: 24000RPM, with low noise.
Imported bearings, bearings with dust cover, more secure.
The grinding process can improve the concentricity of the motor and prolong the service life.