Chris Parks
Member

My apologies for missing this post, the higher the amps the greater the air flow. There are some really nifty digital read outs available that can be...

2850 RPM is the generally accepted motor speed for 50hz, a drop of about 33% from 60hz. It was this problem that we overcame by using VFD's but it...

Bill, the fan speed yes but what changes for the fan curve? Just use a 3 phase motor with VFD, run it at 60hz and all the differences disappear....

A 17.7 inch impeller will do anything you want and will support 3 x 150mm blast gates being open at the same time. We always use 225mm pipe for a...

Use the machine and don't touch anything and you might be surprised. Adjusting the table height is not just a simple exercise of screwing the height...

It still does not supply any useful information but yes I know this is how we have expressed DE sizing in the past and my remarks above on impeller...

A cyclone works because it is inefficient and slows the air flow down. I note the blower the OP has is 3 phase which is a plus, use a VFD to control...

How big was the impeller in the 2HP because without knowing that your information does not help much unfortunately. I know I sound like a broken...

Health issues are important as anyone older will tell you and the one health issue often forgotten in production work in the long term is dust...

Thanks Matt. I was the Australian agent for Clearvue and introduced the product to Oz with success but the current agent has been forced to stop...

A comment and a question, if the cyclone is exhausting to atmosphere then I have found a typical Grizzly style short cone works as well as a long...

With no disrespect to Matt his post illustrates my point regarding how we look at sizing dust extractors. In the great big scheme of things 1-1/2HP...

As long as the HP is adequate to turn the impeller at full speed the HP is not the important factor, the impeller size is. If a 13" impeller is...

FPS is a mistake, it should be CFM.

1000 fps is the delta that Bill Pentz arrived at and it has become the default number that is aimed. Actually my statement on 6" is what we use in Oz...

1000 FPS is easy to get, use 6" duct and ports on the machine and a 15" impeller at 60hz/3450RPM and the job is done. No magic is involved, it simply...

Thanks for the feedback and your experience in related fields. BobL who does all the research on that forum is a physics professor who designed and...

The Australian Woodworking forum has a lot of information and well researched data on measuring air flow and it is the only place I know of that has...

On a closed cabinet like a bandsaw it is all about making sure there is an additional port allowing replacement air in at the same rate as the...

I should clarify what I wrote above, when I say 3 phase I am saying that a three phase motor is used by utilising a VFD from a single phase power...

Yes, but the option is still there using any three phase DE. If Oneida were really serious they would not sell single phase machines at all as they...

That can be done automatically with a VFD if it is programmed correctly. I did a commercial installation where the system did exactly that but don't...

Any 3 phase dust extractor with a VFD will do exactly the same thing including Cleavue. Personally I would not buy a single phase dust extractor if...

That doc does not appear to be for the current A3 series of machine.