Dust extractor impellor

Experimental dust extractor impellor for use with a 3ph spindle drive. 1.5kW to 2.2kW required, has run to 15000 rpm. This is experimental- use at your own risk. Energies involved are high, and failure of the fan can produce dangerous flying parts. Secure structure required.
This produced a high pressure, high flow dust extractor when coupled to a cyclone.