Thread: Look what can still happen if a cyclone bin is not emptied early enough

Originally Posted by BobL

This happened to the same impeller back in March this year.
I recommended they look to see if the impeller was OK.

Attachment 499743

That’s the best advertisement I’ve ever seen for not using plastic for an impeller housing.

Originally Posted by jack620

That’s the best advertisement I’ve ever seen for not using plastic for an impeller housing.

I'm not sure what sort of plastic it is my guess is it's the same stuff as the cyclone which is PET.
Perhaps CP can comment?

If it was PET then maybe polycarbonate (PC) with a 2 - 10 times greater impact strength would have been better choice in that application, but PC is also more expensive.

One reason for using transparent plastic is to see if something is tangled in/on the impeller.
If it's something like a poorly distributed rag the impeller will vibrate but there is another way of seeing into the impeller.
The transparent coupling is 1mm thick PC sheet bent into a tube, which is very easy to do and does not even required heat to form the side flange.
It also make the coupling between the ducting a DC easier and if there is a blockage the coupler can be loosened and slid upwards to get access to inside the impeller housing..
joiner4.jpg

joiner4.jpg

Originally Posted by jack620

That’s the best advertisement I’ve ever seen for not using plastic for an impeller housing.

I tried searching for impeller housing failures for the ClearVues but couldn't find anything so I don't see it as an issue. After all there are many thousands out there and if there were problems there would be lots of blabbering about it. There doesn't seem to be much out there on actual impeller failures when installed correctly either so as a rule they are safe too. Maybe not when spun backwards and eating chunks of your iron like hardwoods though.

Should it really bother you you could go to a metal shop and have them shear, roll and fold a piece of steel to replace the plastic sides. Or order the relatively new EF-5 all metal cyclone. A costlier option but if it gives you piece of mind. I don't see why CV Australia couldn't special order one in with a future shipment. I suspect the EF-5 price would put you in range of the commercially available products you have already.

Pete

Originally Posted by QC Inspector

I don't see why CV Australia couldn't special order one in with a future shipment. I suspect the EF-5 price would put you in range of the commercially available products you have already.

Not to put words into Stephen Durley's mouth but I believe that CV won't export the metal version. As for the material used to make the clear version I have no idea and never thought to ask. I know Corrimal MS repaired theirs by inserting a metal cover over the break.

Originally Posted by jack620

That’s the best advertisement I’ve ever seen for not using plastic for an impeller housing.

Maybe but if it was metal for instance the impeller would still have suffered and there is no guarantee that a metal wrapper would have not been damaged beyond repair. On top of that if the impeller had trapped the timber piece between it and the wrapper and the motor stalled far more damage would have been caused. I understand that a projectile exiting at a significant velocity could present danger to anyone nearby but these machines are always mounted very high and most of them in a separate enclosure from the work space. Just my view and I can understand the comment.

Originally Posted by Chris Parks

I was told a week ago it was not going to happen. My inquiries here to Baldor resulted in none available anywhere and nothing expected any time soon but you already have a taper lock so maybe that changed their minds about supplying one. CV stopped supply of impellers some time ago and it is obvious now why that was done.

Chris Parks currently has a 16" impeller (to fit CV Max) on offer over in the Marketplace...

16" Impeller for Dust Extractor $400

I looked at it for an upgrade to the Cyclone at out local Men's Shed, but they decided to go with a separate DE system for our new extension.

A good buy for someone wanting to upgrade their CV-1800 to CV-Max performance or build their own cyclone... getting an impeller of this size at a reasonable cost is one of the challenges in building your own. The cyclone bit of it is the relatively easy part... Here is the one we built for our local Men's Shed about 15yrs ago when getting an impeller like this one off the shelf was almost impossible here in Australia or prohibitively expensive if made locally as a one-off job....

AMS's cyclone.jpg