This is a high precisions rotary table/air bearing spindle made by Professional Instruments Company, Block-Head model 10R-15. It was pulled from a state of the art Moore Tool M18-AG Diamond Tool Lathe and Aspheric Generator. It currently sits in the original Moore mount with all fittings, lines, gauges, and control cables. The table itself is universal however and can be fit to suit any need. The MSRP of a new, blank 10R is over $20,000. A blank 10R-15 retails for $30,000. This one comes with all of the mounting extras from Moore and we are only selling it for $15,000!
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It was working when on the machine before it was pulled, however we have no way of proving it's current working condition and as such is being sold as-is.
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From the manufacturer:
"High capacity and ultra-high stiffness make the model 10R ideal for turning or grinding heavy workpieces, or as an ultra-rigid toolpost pivot. When integrated with a high-power motor, the model 10R forms the heart of a state-of-the-art optical-surface generator."

For more information see the Block-Head site:
http://www.airbearings.com/10r

Why Block-Head spindles are the best in the world: http://www.airbearings.com/whyblockhead

This machine is listed for sale by located in Jacksonville, Florida