Thread: Felder AF22

Originally Posted by Anodyne

Hi, I'm seeking opinions about the Felder AF22, single phase-3.0kw (4hp) which has one dust bag and an air volume of 3100 cubic metres/hour which by my calculations is a little over 1800 cfm. Although this has a large motor rating the cfm is relatively modest. They use a 160mm pipe and quote "maximum depression 2510 Pa" which I take to mean the suck factor but don't have anything to compare with. Is there anyone out there with technical knowledge to interpret these figures and explain to a mere mortal?
Does anyone have one of these machines and are you happy with it? How noisy compared to say CT 2 or 3 hp? Does the single bag cause the lowish cfm, or is it the machine design, or is it real and the other machines overstate their performance. Any advice will be gratefully received.
My intentions are to connect to a Felder CF741 and to have quick connect to a Hammer badsaw, a hood over a lathe, and possibly a sanding machine running only one machine at a time. The dusty, combination machine and bandsaw will be on dedicated high amp circuits due to motor size (and risk of voiding warranty) Finally the dusty will be below floor- I'm undecided whether to have some form of separator between the dusty and machines to reduce filter filling and reduce chance of chips/other bits damaging the impeller
If there is any interest I will post details and photos on installation

I would strongly encourage you to set up ducting to each machine. You will find that changing over from machine to machine will become very old very quickly and it will encourage you not to do it "just for one cut" so to speak and then you are back where you started from. To spend so much money on an extractor and not fully utilise it is a shame and you won't be getting your full return on your not inconsiderable investment. I know setting up good ducting and modifying machines etc is not an inexpensive exercise and takes quite a long time, I am at the moment rejigging mine for the umpteenth time to suit a Hammer sliding table saw so I can get part of the ducting under the floor.