Re: Blower speed

[Mike Hide]

Go to the nearest lowes or HD with a tape measure the pullies on similar units .Failing that check your furnace blower pully sizes...mjh

I recently picked up a Lau blower fan and an electric motor at separate > garage sales. > > I want to use these two to make an air cleaner. The kind that hangs overhead > and circulates air through furnace filters. This is something my shop really > needs as the airborn dust can get pretty dense at times. I wear a filter > mask when working there but the sawdust gets everywhere. > > In planning how to make such a beast I realized that I have no idea how fast > the blower should be spun. The blower rotor/squirrel cage is 12" diameter. > This is in a metal enclosure, of course. Can someone please suggest a > speed to spin this? The motor is marked with its speeds so the issue is > working out the size of the pulleys. > > Thanks in advance for your help. > > Patty > >

[Lew Hodgett]

As far as I know, Lau Blower is still in business in Cleveland, Oh.

Why not contact their tech service group?

[cfans]

As an ex-Lau employee perhaps i can help you out. Lau is no longer in Cleveland, and recently no longer in Dayton Ohio either.

Let me know, or post to the group the width of the blower wheel, or squirrel cage as the 12" diameter had several wheel widths. Also, check to see if the blower shaft is 3/4 or 1 inch diameter. Either way the blower will be limited to no more than 3/4 horsepower unless you have ball bearings.

For what you want to do the model A12 blower is a little large for what you want so we will want run at fairly low rpms. For pulleys, you can use die-cast pulleys from TSC or maybe your local Borg if the have them.

E-mail me and i will let you know what you need.

Mike