LANG clean-tec chip fan

[LaChaInSaW]

I have a LANG clean-tec chip fan and I want to know what RPM are you running it...

I try it at 6000 rpm and 8000 rpm but its not seem to be more effective at 8000...

I have the 260mm

[Leon82]

We have the smallest one and use it at the max rpm. 

[Sticky]

How far away is the fan when open/spinning from your parts? We use around 4" IIRC.

[Newbeeee™]

12 minutes ago, Sticky said:

How far away is the fan when open/spinning from your parts? We use around 4" IIRC.

And NEVER hit reset when it's running...

[jeff]

10 minutes ago, Newbeeee™ said:

And NEVER hit reset when it's running...

Why is that? Does it need to slowly wind down in RPM's?

[Ewood42]

1 hour ago, Newbeeee™ said:

And NEVER hit reset when it's running...

LOL now I'm curious. We use one in our automated drilling cell, as well as a programmed air blast to clean the jaws between parts. Sudden stop cause it to throw the blades? 

 

Can't tell me not to push a button without saying why, I'll go push the button to find out. We have a spare fan. 

 

[Matthew Hajicek - Singularity]

[Sticky]

When the fan stops the blades go back to being parallel to the spindle. The recommended operating height is less than the length of the fan in the closed/parallel/non spinning configuration. So if the blades are 6" long, and you are 4" off the parts when rotating, when you stop the spindle at 4" above the parts the blades will hit the parts.

[Newbeeee™]

Matt is correct. Although Sticky explained why better...

Hit reset, spindle stops, blades retract down and smash into the parts sending shrapnel everywhere.

Boss comes over and hits you and you collapse to the floor

 

[jean]

We run all sizes and we see that the fans are most effective at their highest RPM and the chip weight also effects effectiveness.  

[Leon82]

They will also suck loclines in if they are above it. 

[Ewood42]

So lucky... funny that we were having this discussion (we run our 260mm fan at 8k rpm, btw)...

So that drilling cell uses a network switch to pass signals between the robots, mill and plc. A loss of connection generates an automatic e-stop on EVERYTHING. Also, the network switch is on a separate circuit than the rest of the cell. Maintenance just happened to be screwing with the breaker when the fan was running... and it e-stopped while moving between positions and just barely missed the part.

Guess I don't need to press the button to find out what happens after all. 

[gms1]

I used these fans about 15-20 years ago and had to stop using them all together when I had stripped all the paint off the inside of the machine running a 1018 kinda high volume job right at the height I was running the fan... oddly enough  

[huskermcdoogle]

19 hours ago, gms1 said:

stop using them all together when I had stripped all the paint off the inside of the machine

Doesn't that mean you are making enough chips to make some money?