Grizzly G0440 vs. G0441 Cyclones

[glenn bradley]

I hate to start another thread about DC so I'll try to be specific. The curve, cost and size differences of the 440 vs. the 441 doesn't seem to match the $450 price difference. Knowing full well that this is one of the areas where bigger is better (and I fully support that view) I will ask:

Anyone with a 2HP (or machine in this performance range) cyclone that has remorse over not going that extra bit to get a 3HP?

The $450 is a decent chunk when comparing the machines only. The difference starts to become less distinct if you look at the total cost of an installation. I am specifically trying to avoid that "I should have" syndrome.

My shop is about 21 x 31. 10" TS under and over, 8" jointer, 13" planer, 17" under and over & 10" under only BS, RT under and over, a pair of DP's, belt disc sander and what-not. I may re-deploy the current 1 HP unit to "jointer or jointer/planer status only" so the bulk of DC need would then be the TS, Large BS and RT.

TIA for your time and input.

[Brad Townsend]

My shop approximates yours very closely - 20' x 30', and equipped about the same. I have a 440 in the attic, so it is not only sucking dust, but pulling it up another level. Bigger is generally better, but I can't imagine needing anything more.

[glenn bradley]

My shop approximates yours very closely - 20' x 30', and equipped about the same. I have a 440 in the attic, so it is not only sucking dust, but pulling it up another level. Bigger is generally better, but I can't imagine needing anything more.

That is a very helpful response Brad. couldn't get much closer size-wise, eh? Thank you.

[Chris Padilla]

To my understanding, Glenn, the main thing to look at with a DC is the size of the impeller. All these motors turn at the same rpm: 3450. After that is your inlet size and ducting.

So if everything is the same but for 1 HP, I wouldn't bother.

[Jim Becker]

My shop approximates yours very closely - 20' x 30', and equipped about the same. I have a 440 in the attic, so it is not only sucking dust, but pulling it up another level. Bigger is generally better, but I can't imagine needing anything more.

Vertical is immaterial since you're moving air which is "practically" weightless. The moving are is what brings the dust and chips along. Up/down has pretty much zero impact on performance. Duct length (and design), however, has a great deal of impact on system performance.

[Brad Townsend]

Vertical is immaterial since you're moving air which is "practically" weightless. The moving are is what brings the dust and chips along. Up/down has pretty much zero impact on performance. Duct length (and design), however, has a great deal of impact on system performance.
Jim, perhaps the vertical part of a run will have little impact on a system that is powerful enough to do the job. But from personal experience, if it is undersized, it most definitely will. The point I'm making is that the 440 is more than adequate to the task.

[John Bush]

Hi Glenn,
My shop is 1500 sqft and my equipment list is similar to yours. I did the calcs for required cfms and the 440 had plenty of power according to the numbers. I installed it in an attached shed with all metal duct overhead, rising to ~~12 ft. above the floor, and the longest runs ~~40ft. So far it has worked flawlessly, except the two times I forgot to empty the barrel. I had two ft of chips in the shed!!. I was going to get the 441 just to satisfy the "Tim Taylor" in me but an HVAC engineer reviewed the numbers and said the 440 was more than enough and the 441 would be WAY more than enough. If you were going to run more than two machines at a time the 441 may be better, but for a hobby style shop the 440 has worked well for me. Your best bet would be to design your ducting to max efficiency, go with the 440 and invest the savings in the Ecogate gate control system. Spendy but it opens and closes the gates as you turn the machines on and off, saving the hassel of remembering to both open and close the gate as you scamper from machine to machine. There are a lot of times I wouldn't bother bending over to open a gate for a quick TS cut or pass on the jointer but now it is all automatic. Definitely more than I need but well worth it.

Anyway.... the 440 should give you all the performance you will need.

[Bryan Rocker]

My question is how do folks with basement shops like me put one of these with only 93" ceilings in? Is there a way to reduce their overall height?

[Rod Sheridan]

My question is how do folks with basement shops like me put one of these with only 93" ceilings in? Is there a way to reduce their overall height?

Hi Bryan, install your cyclone so that the motor is between your floor joists.

Be sure to leave a couple of inches between the fan on the motor and the floor for airflow.

Regards, Rod.

[Lean Angle]

I've been looking into DC lately, and I've been planning on putting the unit in a shed just outside my shop.

I'm curious about the benefits of a cyclone when the DC isn't even in the shop. My theory is that if its in a separate building that I don't really care if it is a cyclone or a 30 micron bag. I still am not being exposed to the fine dust.

The G1030 is almost half the price and offers higher air flow. So why go cyclone?

[Rod Sheridan]

Hi Lean, you're correct, if you can put the unit outside, you don't have to worry as much about the filtering.

However I believe the OP indicated that it was going in his basement, so he does have to worry about filtering.

Regards, Rod.

[Brad Townsend]

I've been looking into DC lately, and I've been planning on putting the unit in a shed just outside my shop.

I'm curious about the benefits of a cyclone when the DC isn't even in the shop. My theory is that if its in a separate building that I don't really care if it is a cyclone or a 30 micron bag. I still am not being exposed to the fine dust.

The G1030 is almost half the price and offers higher air flow. So why go cyclone?
One other advantage to the cyclone is that it will maintain it's airflow rating because nearly all of the dust is taken out of the airstream before it reaches the filter. With the 1030 you are considering (and with other units of this type) dust will build up on the bags and you will lose airflow over time. (I'm assuming the airflow rating is with a clean bag.) You will not get the claimed airflow rating with a half inch of dustcake on the inside of the bag. Of course, it wouldn't be a big deal for you to go out every so often and beat the bag with a stick.:D