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Re: AF-22 Dust Collector
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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Re: AF-22 Dust Collector
Richard McComas
Geoff, I bought the AF-22 LN at the IFW show in Anaheim last July.
John Renzetti clued me in on the LN version other wise I may have ended up the other as none of the sale people made a reverence to either one. Anyway the AF-22 LN is my first dust collection system other than the old Sears ShopVac I have so I don't really have anything to compare to. I will say that I find the noise level of the LN to be quite acceptable. The pitch of the noise is more of a low sound rather than the high pitch of my shop vac, when using my AD-471 Jointer/planer I hardly hear it over the noise generated my the AD-741. Presently I have the AF-22 LN connected to the AD-741 with a 24' piece of flexible hose so this put the unit fairly close to the work area. Rich "geoff shepherd" <geof-@...> wrote: original article: =52 John,your comments of using a standard X-10 compatible wireless 220v switch. Atthe other Felder owner's shop in Seattle that I visited yesterday, hetold me about his experience with his AF-22 being too noisy. That unit wasalso single-phase. According to the Felder rep who visited, the problem onthe older versions of the AF-22 was that the single-phase motor was ratedfor 50 Hz, but on 60 Hz it ran 20% faster which threw a big wrench into theirwent back to Felder and was replaced with an Oneida 2hp cyclone system.with my BF6-31 ran when I tried it out before buying. That unit is athree-phase model, and may not be affected by the same issue of running too fast.Not sure why that would be, but it was something we wondered about whilerelatively quiet running AF-22? Single phase or three phase? Anyone have the newredesigned AF-22LN? How quiet is it? With my preoccupation with power toolnoise, maybe I should buy a sound level meter one of these days! |
new link, adding links
John Renzetti
With David's permission I just added a link to Felder owner/member
David DeCristoforo's web site. IF you like chess and the related equipment you'll enjoy this site plus see some of the things that David makes. If any other member has a personal website or another favorite let us know. I'm not sure right now if Geoff or myself have to add it or you can do it if you know the secret handshake,etc. I'm new to the website thing and Geoff has been guiding me along. Now I'm off on a couple day trip out west. Take care, John PS I also added txt files along side the doc files over in the vault. |
AF22 dust collector
John Renzetti
My AF22 is single phase. And it is one of the noisey ones. I use the
x10 remote on it and that works fine. When Geoff visited the shop about six months ago he noted that the motorfan may be slightly out of balance which may account for the noise. I'm going to check with John Hartshorne to see what recommendations there could be to check for balance. One thing I'd like to see Felder offer is a larger pleated drum filter. The regular is great but when you use a drum sander or cut mdf or other sheet goods, you have to be careful it doesn't clog too quickly. More frequent cleanouts of the pleats are necessary to get out the superfine particles. Still it is compact and very powerful. I wonder if I could retrofit the new LN motor and fan. Take care, John Renzetti Chadds Ford PA KF7F,AD7-41 |
Re: AF-22 Dust Collector
Philip Tamarkin
...after looking around, I'm having a (single phase) Oneida 1.5 hp. system
shipped to me this week - will post after I've had it hooked up - they
claim 75-80 db (Leeson 3450 rpm motor) and also offer a silencer to further
reduce noise.? I've also built a simple relay system that allows control
of my dust collector from any machine location - control wires @ 24 volt,
so any small 2-wire jacketed wire works great (phone wire, thermostat cable,
etc.) simple off-the-shelf Grainger parts, about $35 in parts.? Email
me off list if you want specifics.
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It's been my experience that noise in fan systems is almost always a
fan balance problem - cheap collectors are notorious for out-of-balance
fans - Oneida offers a balanced refit for the 2hp Taiwanese fans that's
supposed to cut noise and vibration tremendously.? I'm surprised that
fan noise would be much affected by the speed difference between a 50hz
and 60hz motor - suspect that Felder's fan source has some QC issues...
Nibs1@... wrote: I have a 3 phase AF-22 and it's very noisy so I definitely wear ear |
Re: new link, adding links
John Hartshorne
Hi Group,
David's chess tables are candy for the eyes. But most importantly he makes them on a Felder BF6-31. the joinery is a two flute glue joint cutter also a Felder product. It works very well. Enjoy the site, JH "john renzetti" <j.renzett-@...> wrote: original article: =58 With David's permission I just added a link to Felder owner/memberDavid makes. If any other member has a personal website or another favorite |
Re: AF22 dust collector
John Hartshorne
Dear John,
The AF-22 you have is quite noisey due to the fact it is running a 50Hz impeller(Fan)with the 60Hz moto it is running almost 20% faster. The on thing we can say is it really sucks! Reguarding fan balance it is static balanced and there for you see a little wobble at the end of the shut down cycle( after the power has been turned off)this is normal. However a quality motor shop could balance it as an assembly. I don't know the cost it could vary depending where you have it done. Thanks, JH "john renzetti" <j.renzett-@...> wrote: original article: =59 My AF22 is single phase. And it is one of the noisey ones. I use theabout six months ago he noted that the motorfan may be slightly out ofcut mdf or other sheet goods, you have to be careful it doesn't clog tooout the superfine particles. Still it is compact and very powerful. I |
Re: AF-22 Dust Collector
John Hartshorne
Dear Richard,
You do have a LN or lower noise unit as we stopped bring in the 50Hz fan models right after John received his. We new he was a sucker, so we gave him a unit that really sucks. All kidding aside both work very well, but the earlier models were louder. JH "richard mccomas" <rmccoma-@...> wrote: original article: =55 Geoff, I bought the AF-22 LN at the IFW show in Anaheim last July.ended up the other as none of the sale people made a reverence to eitherthan the old Sears ShopVac I have so I don't really have anything tocompare to. I will say that I find the noise level of the LN to be quitert =52AtJohn,your theonother Felder owner's shop in Seattle that I visited yesterday, hetold meabout his experience with his AF-22 being too noisy. That unit wasalsosingle-phase. According to the Felder rep who visited, the problem theratedolder versions of the AF-22 was that the single-phase motor was for 50theirHz, but on 60 Hz it ran 20% faster which threw a big wrench into butcareful system design. They tried to subsitute a smaller impeller, fast.couldn't pull the existing one off the shaft. That particular unitwent backto Felder and was replaced with an Oneida 2hp cyclone system.with my Notsure why that would be, but it was something we wondered about whilerelatively quiet |
Responces to Tech questions or comments
John Hartshorne
Dear group,
I will try to respond to questions or comments and new ideas as soon as I can. However, if you have problem that needs urgent attention please email me directly at: john@... or call me at: 1800-572-0061 toll free. New ideas or product quality remarks will be forwarded to our factory. There the R&D department will consider the info as they have for years. Some times changes come quickly and sometimes they come slowly. I look forward to hearing from you, John Hartshorne |
Re: Emails from the FELDER E Group
Geoff Shepherd
Tom,
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If you want to remove yourself from the group entirely, just send a blank e-mail to felder-woodworking-unsubscribe@... (these instructions are also at the bottom of every message from the group). If you want to stay a member of the group, but not have the e-mails sent to you, visit and click on the "Members" tab. You may be asked to establish an eGroups account to use some of the web site features, and that is easy to do if you follow their instructions. Once you get to the members tab, you can find your own name and click on it. There you can view and set your membership options, including whether you want messages delivered to you via e-mail, or if you prefer to read them from the web site at your convenience. Hope that makes sense! I can also make these changes for you should you have difficulty getting it to work - just send me an e-mail and tell me how you want it. -- Geoff Shepherd (felder-woodworking list manager) mailto:Geoff@... ----- Original Message -----
From: Tom Van Alstyne <tom@...> Sent: Monday, February 14, 2000 5:35 AM Subject: [felder-woodworking] Emails from the FELDER E Group Geoff- |
Man, that sucks! (AF-22)
Geoff Shepherd
I just got my AF-22 wired up last night... after getting the motor running
in the right direction (it's 3-phase), I connected the hoses, double-checked the bags and pleated drum filter, then hit the Start button. Wooosh! It was up to speed and moving a LOT of air... then something caused it to labor for a half-second and I couldn't find the cat anymore... (just kidding). This DC has an amazing amount of suction and air flow... the noise it makes is mostly moving air and isn't loud enough to warrant hearing protection in my estimation... in fact, it is barely audible outside of the shop (uninsulated as of now). Well, it looks like since this thing really sucks, it'll probably just sit in the corner and collect dust.. (OK, I'll stop now.. it must be terribly annoying by now). The two Felder-brand plastic collection bags that came with the machine were full of holes (and liberally duct taped).. oh - I should mention here that I bought the machine used, so no, I'm sure it didn't come from the factory like that!! Anyway, I didn't want to risk a big dust cloud in the shop, and I haven't received my package of new bags yet (probably today)... however, I found bags that will work perfectly well anyway, only they are not clear: 42-gallon Ruffies-brand "Contractor Clean-up Bags." They are 3-mil thick and resist puncture since they are intended for cleaning up remodeling messes like nails and drywall scraps - I use them all the time when working on the house. They happen to fit the machine perfectly and are just the right height so they are supported from below. The only problem is they are opaque-black so you cannot visually monitor how full they are getting, and they don't have the cool FELDER logo on them... but at $6 for a roll of 10, they are cost effective if they aren't being reused (unlike a lot of you, I don't have a place to compost piles of sawdust, so it must go to the dump or be picked up curbside... unless I added that $42,000 hydraulic-ram pellet making machine to my shop... hmm! naw...). Well, now I know why my AF-22 is relatively quiet... I finally discovered the plate that lists the model number, serial number, etc... it's under the "deck" near the motor tucked away in the corner. Aha! -- "AF-22 LN"... so it is the new Low Noise version after all - good! Wonder how I missed that before. It also sports a 3kW/3ph motor rather than the 2.2kW/3ph motors in my BF6-31... what does that equate to in horsepower? I thought my BF6-31 was effectively 4HP, but if 1HP = 740W (more or less), then my BF6-31 is more like 3HP and the AF-22 would be 4HP. Is it calculated differently for 3-phase motors? Am I all screwed up on this??! Also, in a dust collector such as the AF-22, is the motor under full load all the time? On a related question... I read in my residential wiring text book (vintage 1990) that given the same horsepower and supply voltage, a 3-phase motor will draw about 55% of the full-load current (amps) as a single-phase motor (this is listed in tables from the NEC, and the exact ratio varies depending on horsepower). Does this take into account three hot legs vs. two hot legs? In other words, is it like comparing apples to oranges? I was thus far under the impression that three-phase motors were significantly more effecient than single-phase. Maybe this ties in with computing horsepower from Watts as above. Have a great day... -- Geoff Shepherd (forum manager) Everett, WA BF6-31, AF-22 LN |
Who uploaded 2-PIC00008.jpg ??
Geoff Shepherd
Who uploaded the file 2-PIC00008.jpg in the main folder of the Vault?
It looks like a good picture, but I'd like to move it to an appropriate sub-folder within the Member Shop & Project Pictures. Now that we've hashed out some guidelines on using the vault, I've uploaded an HTML document everyone should take a look through before uploading. They are just guidelines, open for modification and bending... Although I think we should discourage uploading files in MS-Word (DOC) format, that doesn't change the fact that there are already many DOC files in the Vault. For those who don't own a copy of Microsoft Word, there is a free Word Viewer available from Microsoft - see the Links section on our member site. Unfortunately, it is a Windows only version, so Mac users may still be out of luck unless they own a word processor that can import MS-Word files or can run the Word Viewer in a Windows Emulator. -- Geoff Shepherd (group manager) |
Re: Who uploaded 2-PIC00008.jpg ??
Joel Cohen
Geoff,
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It was I. I did not known what I was doing . You can delete it as I have duplicated the pic I my vault. Thanks, Joel Cohen BF7-41F, -----Original Message-----
From: Geoff Shepherd [SMTP:geoff@...] Sent: Tuesday, February 15, 2000 4:22 PM To: felder-woodworking@... Subject: [felder-woodworking] Who uploaded 2-PIC00008.jpg ?? Who uploaded the file 2-PIC00008.jpg in the main folder of the Vault? It looks like a good picture, but I'd like to move it to an appropriate sub-folder within the Member Shop & Project Pictures. Now that we've hashed out some guidelines on using the vault, I've uploaded an HTML document everyone should take a look through before uploading. They are just guidelines, open for modification and bending... Although I think we should discourage uploading files in MS-Word (DOC) format, that doesn't change the fact that there are already many DOC files in the Vault. For those who don't own a copy of Microsoft Word, there is a free Word Viewer available from Microsoft - see the Links section on our member site. Unfortunately, it is a Windows only version, so Mac users may still be out of luck unless they own a word processor that can import MS-Word files or can run the Word Viewer in a Windows Emulator. -- Geoff Shepherd (group manager) ------------------------------------------------------------------------ To Post a message, send it to: felder-woodworking@... To Unsubscribe, send a blank message to: felder-woodworking-unsubscribe@... ------------------------------------------------------------------------ eLerts! It's easy. It's fun. Best of all, it's free. -- 20 megs of disk space in your group's Document Vault -- |
Joel's pics
Geoff Shepherd
Joel,
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Don't worry about it - I think we're inventing this thing as we go along... I deleted the picture for you. I like your shop photos, and I even recognized most of the tools you have... but... what are the miniature tools on your desk there? It looks like a tiny table saw and a miniature planer... did I guess right? ..Geoff ----- Original Message -----
From: Joel Cohen <Jcohen@...> Sent: Tuesday, February 15, 2000 1:30 PM Subject: [felder-woodworking] Re: Who uploaded 2-PIC00008.jpg ?? Geoff, |
Re: Man, that sucks! (AF-22)
Charlie Norton
A 3kW output motor is indeed 4HP.
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A dust collector motor, if properly designed, will be a full load at all times. A 3-phase motor is generally much more efficient than a single phase motor. The RMS current in each phase of a 3-phase transmission line is 57.8 percent (1 over the square root of 3) of the RMS current in a single phase line, for the same power transmitted at the same RMS line voltage. This of course, is for phases of equal amplitude separated by 120 degrees. I'm not sure what happens to these currents when the machine is powered from a rotary phase converter. What does Felder advertise for airflow? -----Original Message-----
From: Geoff Shepherd <geoff@...> To: felder-woodworking@... <felder-woodworking@...> Date: Tuesday, February 15, 2000 11:19 AM Subject: [felder-woodworking] Man, that sucks! (AF-22) I just got my AF-22 wired up last night... after getting the motor runningdouble-checked the bags and pleated drum filter, then hit the Start button. Wooosh! It wasfor a half-second and I couldn't find the cat anymore... (just kidding). ThisDC has an amazing amount of suction and air flow... the noise it makes is(uninsulated as of now). Well, it looks like since this thing really sucks, it'llwere full of holes (and liberally duct taped).. oh - I should mention here thatI bought the machine used, so no, I'm sure it didn't come from the factoryI found bags that will work perfectly well anyway, only they are not clear:and resist puncture since they are intended for cleaning up remodeling messesor be picked up curbside... unless I added that $42,000 hydraulic-ram pelletit is the new Low Noise version after all - good! Wonder how I missed thatwas effectively 4HP, but if 1HP = 740W (more or less), then my BF6-31 is moredepending on horsepower). Does this take into account three hot legs vs. two hotlegs? In other words, is it like comparing apples to oranges? I was thus farunder the impression that three-phase motors were significantly more effecientfelder-woodworking-unsubscribe@...
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Re: Man, that sucks! (AF-22)
Geoff Shepherd
Charlie,
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The only air-flow specs I have for the AF-22 are the ones in the manual, and it makes reference to a 2.2kW motor. If you don't already have those specs, it's hard to describe in a few words since they show it as three fan curves depending on inlet/hose size. The most airflow shown is 3000 m3/h at 250 Pa via a 160mm connector directly at the intake of the blower. Following that curve, we hit 2500 m3/h at around 1250 Pa, and 1500 m3/h at 2300 Pa. ..Geoff ----- Original Message -----
From: Charlie Norton <cnorton@...> Sent: Tuesday, February 15, 2000 7:02 PM Subject: [felder-woodworking] Re: Man, that sucks! (AF-22) What does Felder advertise for airflow? |
Re: Joel's pics
Joel Cohen
Geoff,
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? right , they are a table saw and thickness sander. I got them after I got the Felder and found out that I could not cut the miniature pieces I needed for the small boxes I make. They are from Preac and are precision tools, much like the Felder on a smaller scale. Joel -----Original Message-----
From: Geoff Shepherd [SMTP:geoff@...] Sent: Tuesday, February 15, 2000 6:31 PM To: felder-woodworking@... Subject: [felder-woodworking] Joel's pics Joel, Don't worry about it - I think we're inventing this thing as we go along... I deleted the picture for you. I like your shop photos, and I even recognized most of the tools you have... but... what are the miniature tools on your desk there? It looks like a tiny table saw and a miniature planer... did I guess right? ..Geoff ----- Original Message ----- From: Joel Cohen <Jcohen@...> Sent: Tuesday, February 15, 2000 1:30 PM Subject: [felder-woodworking] Re: Who uploaded 2-PIC00008.jpg ?? > Geoff, > > It was I. I did not known what I was doing . You can delete it as I have > duplicated the pic I my vault. ------------------------------------------------------------------------ To Post a message, send it to: felder-woodworking@... To Unsubscribe, send a blank message to: felder-woodworking-unsubscribe@... ------------------------------------------------------------------------ eLerts! It's easy. It's fun. Best of all, it's free. -- Create a poll/survey for your group! -- |