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Charlie Norton
I cannot respond regarding three phase vs single phase in the Felder AF-22,
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but my BF7-41 originally shipped with single phase motors which were (in my opinion) noisy and caused the machine base to vibrate. Felder graciously swapped out the motors for three phase which were quieter and produced dramatically lower vibration. Felder hinted that the single phase motor supplier was providing motors that had a wide range of these characteristics...that is some were as quiet as a three phase and some were much, much noisier. I don't know if the same supplier is used for the dust collector. Single and three phase motors should produce roughly the same rotation speed when powered from the same line frequency. The synch speed is obviously the same and the slip is within a couple percent. I use a single phase 3HP Leeson powered blower exhausting a cyclone and it sounds like an F-16! I have mounted the unit in the attic above my garage to keep the noise out of the working area. I have yet to complete the air ducting, so I hope this works out. -----Original Message-----
From: Geoff Shepherd <geoff@...> To: felder-woodworking@... <felder-woodworking@...> Date: Sunday, February 13, 2000 6:16 PM Subject: [felder-woodworking] AF-22 Dust Collector John,50 Hz, but on 60 Hz it ran 20% faster which threw a big wrench into theirback to Felder and was replaced with an Oneida 2hp cyclone system.quiet running AF-22? Single phase or three phase? Anyone have the new redesignedmaybe I should buy a sound level meter one of these days!felder-woodworking-unsubscribe@...
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