Is it best to use 4" hoses instead of 2" for a dust collector ?

I just got a Delta 50-840 through the newspaper for sale / cheap. Claimed
to have never been used. the bags were still sealed and clean enough to
have never been used. It was missing the bolts and casters to put it
together, but I had all the parts needed in my assorted junk boxes.
Perviously I have been using a shop vac and connecting it to each machine as
needed.
(router table, band saw, tablesaw, mitersaw).

My real question is: If I am to pipe my shop, is is best to just go for the
4" tubing or use 2" (2.5 or 2.25 whatever).
I understand that there will be a loss of power, but is it significant ?

Thanks in advance,

Matt

"matthew silver" wrote in message

Is it best to use 4" hoses instead of 2" for a dust collector ?

YES


My real question is: If I am to pipe my shop, is is best to just go for
the 4" tubing or use 2" (2.5 or 2.25 whatever).
I understand that there will be a loss of power, but is it significant ?

You may use the smaller tubing for the router fence or maybe a sander, but
use the 4" for planer, table saw, jointer, etc.

matthew silver wrote:

Is it best to use 4" hoses instead of 2" for a dust collector ?

I just got a Delta 50-840 through the newspaper for sale / cheap. Claimed
to have never been used. the bags were still sealed and clean enough to
have never been used. It was missing the bolts and casters to put it
together, but I had all the parts needed in my assorted junk boxes.
Perviously I have been using a shop vac and connecting it to each machine
as needed.
(router table, band saw, tablesaw, mitersaw).

My real question is: If I am to pipe my shop, is is best to just go for
the 4" tubing or use 2" (2.5 or 2.25 whatever).
I understand that there will be a loss of power, but is it significant ?

Thanks in advance,

Matt


Use the 4" for all drops and reduce at the machine you are connecting to.

Deb

Designing a dust collection system is more complicated than one might
expect.
Try this site for a starting point.


"matthew silver" wrote in message
news
Is it best to use 4" hoses instead of 2" for a dust collector ?

I just got a Delta 50-840 through the newspaper for sale / cheap. Claimed
to have never been used. the bags were still sealed and clean enough to
have never been used. It was missing the bolts and casters to put it
together, but I had all the parts needed in my assorted junk boxes.
Perviously I have been using a shop vac and connecting it to each machine
as needed.
(router table, band saw, tablesaw, mitersaw).

My real question is: If I am to pipe my shop, is is best to just go for
the 4" tubing or use 2" (2.5 or 2.25 whatever).
I understand that there will be a loss of power, but is it significant ?

Thanks in advance,

Matt

Sorry forgot the link: http://billpentz.com/woodworking/cyclone/index.cfm


"matthew silver" wrote in message
news
Is it best to use 4" hoses instead of 2" for a dust collector ?

I just got a Delta 50-840 through the newspaper for sale / cheap. Claimed
to have never been used. the bags were still sealed and clean enough to
have never been used. It was missing the bolts and casters to put it
together, but I had all the parts needed in my assorted junk boxes.
Perviously I have been using a shop vac and connecting it to each machine
as needed.
(router table, band saw, tablesaw, mitersaw).

My real question is: If I am to pipe my shop, is is best to just go for
the 4" tubing or use 2" (2.5 or 2.25 whatever).
I understand that there will be a loss of power, but is it significant ?

Thanks in advance,

Matt

A friend converted from PVC to Furnace ducting and found his suction
across the shop went up quite significantly. Get the heaver guage
stuff and you will be fine as long as you don't bang into it, as it
does dent quite a bit easier.

Alan

"arw01" wrote in message
oups.com...
A friend converted from PVC to Furnace ducting and found his suction
across the shop went up quite significantly.

Same size or larger?

"matthew silver" wrote in
news

My real question is: If I am to pipe my shop, is is best to just go
for the 4" tubing or use 2" (2.5 or 2.25 whatever).
I understand that there will be a loss of power, but is it significant
?

There are a slew of things to consider here. But in general, yes, larger
diameter pipes enable more "flow". Think of sucking a milkshake through
a straw - larger diameter straw is alows more flow.

But up to a point. You've got a 1HP machine, so don't plump your shop
with 6" pipe, just like you don't want 2" pipe either.

You'll also want to minimze the number of 90* turns, and in general
minimize the length of runs, the amount of flex hose etc.

I just replace my 1HP with 1 1/2HP Delta 50-850 and am amazed at how much
better the collection is.

I just replace my 1HP with 1 1/2HP Delta 50-850 and am amazed at how much
better the collection is.

Been years since I played around with my dust collectors ...But I have
a 2 Hp Grizley for about 15 years now...a few years ago at an estate
auction I picked up a 1 Hp Penn State Dustcolector for 2 (TWO)
dollars...

anyhow at the time when I compared them it seemed to me that the 2 Hp
"sucked" at least twice the amount of air the 1 Hp sucked... all
using the same pipes..... Very unscientific just seat of the pants
comparason etc...

I can understand how going from a 1 Hp to a 1 1/2 Hp collector would
be very noticable....

Bob G.

On Sun, 9 Oct 2005 22:31:08 -0400, "matthew silver"
wrote:

Is it best to use 4" hoses instead of 2" for a dust collector ?

I just got a Delta 50-840 through the newspaper for sale / cheap. Claimed
to have never been used. the bags were still sealed and clean enough to
have never been used. It was missing the bolts and casters to put it
together, but I had all the parts needed in my assorted junk boxes.
Perviously I have been using a shop vac and connecting it to each machine as
needed.
(router table, band saw, tablesaw, mitersaw).

My real question is: If I am to pipe my shop, is is best to just go for the
4" tubing or use 2" (2.5 or 2.25 whatever).
I understand that there will be a loss of power, but is it significant ?

Thanks in advance,

Matt

Delta used to have a fairly good free publication on the design of
dust collection systems. I believe it was actually written by the
people at Cincinati Fan who had a supplier relationship with Delta.
Call Delta and see if they still have it.