Live spindle

(Mach.) the revolving spindle of a machine tool; the spindle of the headstock of a turning lathe.

See also: Spindle

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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The ISO 50 universal workhead with Studer's infeed ring sensing is capable of both live spindle grinding and grinding between centers, and has a maximum speed of 1,500 rpm.
Three headstock choices all include a live spindle for manufacturing versatility.
Next to the column is a 20-station tool carousel that supplies tooling for the live spindle. Explosives are held in place with a vacuum, but mechanical clamping can also be used.
The machine is equipped with five turning tools, six live spindle tools, and four frontal drills in the main tool post.
The three-headstock choices all include a live spindle for drilling and tapping as well as added reach for boring.
When live spindle machining is performed, the automatic tool change can be used with ISO 50 (40), CAT 50, HSK 100, or Sandvik CAPTO C5.
And finally, the 10HP B-axis machining spindle (live spindle) rotates a total of 225 degrees to machine angled features in increments of 0.001 degree.
The live spindle (rotating spindle in the ram head) enables Atlas Copco to turn and machine housings and shrouds in the same setup on the one machine.
The built-in turning/boring/milling heads feature automatic dynamic counterbalancing, automatic tool change for spindle and turning tools, coolant through the spindle for turning and boring tools, and built-in spindle support bearing for live spindle.