BIG CRASH !

[Thee Rickster ™]

you have mail.

[mtnflyr]

JM2C, I've been told that Command pull studs are some of the most unreliable because they are cast steel. I have had a couple cut loose on me costing a spindle each time. Of couse this was before I found out about Command studs being cast. Any cast steel pull studs can break at any time. Try to use forged or turned/ground pull studs whenever possible.

[?Mark]

For those that didn't see this warning here it is again...

[cadcam]

Dragracer1951 I just looked at the photo no issue here.

[Thee Dragracer1951]

Ahhhh...Now I can see it.

At least part of it

That's a big machine

[Todd Mann from Fastech]

when we bought our KOMO, refurbished by KOMO, the spindle had similar damage. We had an outfit come and regrind the taper on the machine, took a couple hours. Of course this would only work if the bearing are still good. Im sure there is some one close to you that does the same.

[MetalMarvels]

I have also had two pull-studs break in 5 years - both events were expensive , costing me parts, vices, tool holders, and spindles. Both were coolant-thru types. I changed out ALL of mine for solid, ground-finished premium pull-studs and have not had another problem. However, I also change them out annually with new units that have been tested. The couple of hundred dollars a year to change them is cheap insurance especially when you consider that they can be exposed to very high pull pressures. The other "cheap" insurance was the acquisition of one of the hydraulic guage type spindle pull testers (http://www.dynamicmachinetool.com/html/accessories_clamprite_gage.html).

[William Grizwald]

There's a another one of these beasts here around L.A.

 

http://www.marvineng.com/adi/pics/product_c.htm

 

I used to program parts on this one. Come to think of it, the parts in the foreground are ones I did some rev changes to. The reality is that most times we had each of the 3 bridges doing different parts in the 6'to 12' range in sets of 3. Being each head has 100hp there's quite a rooster tail on some cuts!

 

--

Bill