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For Sale: Warner & Swasey SC-32

Nerv

Cast Iron
Joined
Jun 16, 2016
Location
Alberta, Canada
Well maintained Warner Swasey SC-32:

Professionally retrofitted to Fanuc 18TT control and extensively refurbished in 1997. The 18TT control is capable of both axis moving independently and as a result the machine is a 4 axis unit. The control is open (Not locked out like Mori Seiki, etc) and still supported by Fanuc, AC drives and servos on all axis except the 75HP DC spindle motor, which was retained for high torque smooth thread cutting performance.

Fanuc 18-TT 4 axis control with full color screen interface:


SC_1.jpg
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32in German Schunk Rota Pneumatic chuck. (The chuck alone is worth over 100k CAD to replace) The spindle has around 19” inch through bore and the chuck itself has a 12.25” through bore. There is a taper on the back of the spindle for a second chuck.

Roughly 10 feet between centers, has a hydraulic actuated steady rest and a unique lower turret that is a 7in boring bar that is around 3 feet long which can hold 4 tools on the end of it and has tapered tailstock rings around the bar to hold tubular material and act as a tailstock which is completely programmable. If you have complex inside features of tube material that is large than 7in ID, this machine will save a bunch in tooling costs, machining time and ultimately allow for work to be completed that most machines cannot do.

a78ec53f-0178-43cf-a70d-afaa0132fc4f.jpg

This machine was highly maintained and intended to build very difficult to machine parts. It is very rigid (55,000lb) and highly regarded from those who have run these machines for oilfield work, the spindles are very robust and it is capable of taking heavy cuts all day long.

I have a 600V input isolation transformer that I will include that is matched to the machine’s requirements.
 
I need to turn on notifications on this thread! I thought it would do so by default when I created it, but I was wrong! The boring bar indexes 4 positions. I haven't looked into the back of it but depending on how that coupling is designed it may be able to do more with a new custom designed tip, and some ladder updates.
 
Well, I was just theorizing that the current lower unit COULD be taken apart and redesigned a bit to have a 4 place turret top plate put on it that could handle 4 drill type tools. That machine is nice enough, and updated enough to put the work into modifying the lower.


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Think Snow Eh!
Ox
 
I agree, the lower assembly could easily be changed into something else custom while reusing most of the components if someone had smaller machines available to make those parts. I have a turret off a Daewoo Puma 12L that I'll include at no extra charge if someone wanted to just make an adapter plate for it. That would work well, there is nothing wrong with the Turret I had started going through the Puma and decided it wasn't worth the time and money to restore it but the turret is fine. If anyone needs parts for one of those let me know I may have some.
 
Here are a few more images of the machine:

19in spindle bore:

20230810_141135.jpg

In addition to the upgraded Fanuc control, this machine has a Eurotherm drive for the DC spindle motor.

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All the electronics were replaced when the machine was professionally retrofitted around 1997/98.

Please let me know if you are looking for a machine of this capacity!

Dave @ Nerv
 
OK, so what is the blockade at the other end of the spindle bore?
Is that the chuck?
If so, the pic makes the spindle look short.
Is it really that short?

[not that I am interested] but does that have a geared head I suspect?


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Think Snow Eh!
Ox
 
OK, so what is the blockade at the other end of the spindle bore?
Is that the chuck?

Yes, the Schunk Rota Pneumatic has around a 12.25 bore.

If so, the pic makes the spindle look short.
Is it really that short?

49 3/4" from the back of the chuck to the back face of the rear spindle taper. 4 feet doesn't seem that short, it may just be the optics of the photo?

[not that I am interested] but does that have a geared head I suspect?

I know you aren't looking for such a machine yourself but the discussion is great anyway, I'm sure you are not the only one that might have questions. Yes the head is geared, and huge really. it's all proportional and looks normal size until you put something in the photo to show scale, like a tin can:

Bore_Ref.jpg

Headstock_Ref.jpg

Dave @ Nerv
 
Has oil field work slowed down that much that you don’t need it, or do you have something better now?
 
Neither, when the machine arrived it became apparent quickly that the area I had for it was not optimal for running this machine. My floor in particular is not up to the task and it will take some time before my larger facility is ready. If it doesn't sell before I get my larger building built I may move it and run it there.
 
I'll trade you for a 5x Excello 408....
So I saw this and checked out the machine. Now a 5 axis HBM would be pretty cool, especially once my new shop is built. It's funny that despite how large it is, it is a good 10,000lb lighter than this lathe.

Where I get a little less enthusiastic is with Camsoft. I do have experience with Galil though, I did a couple retrofits with them and have all their extra tuning software already, as well as some standalone 8 axis controllers. The low speed Cat50 spindle also would take some getting used to, and I have very little CAT50 tooling now.

Just out of curiosity, what motion control card/module does it have now? Can you send me photos of the electronics or add them to your thread for this machine? We can take this conversation there if you prefer, so others can reap the benefits of the information if they were thinking of asking themselves.

Dave @ Nerv
 
That low speed CAT 50 spindle was a exclusive that Drilco had on all of the W & S SC25's, 32's, and 36's and some 4A and 5A turret lathes back in the 1970's. At one time they had "rights" over that CAT 50 that nobody else could buy it from W & S. It was only there to thread mill rotary shouldered connections. Back then not everyone trusted full formed threading inserts for single point threading on rotary shouldered connections. That was the purpose for that CAT 50 spindle on the turret.
 
That low speed CAT 50 spindle was a exclusive that Drilco had on all of the W & S SC25's, 32's, and 36's and some 4A and 5A turret lathes back in the 1970's. At one time they had "rights" over that CAT 50 that nobody else could buy it from W & S. It was only there to thread mill rotary shouldered connections. Back then not everyone trusted full formed threading inserts for single point threading on rotary shouldered connections. That was the purpose for that CAT 50 spindle on the turret.

???


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Think Snow Eh!
Ox
 
He's gitt'n warrs crossed...

Could be gitt'n some backfeed from a poor ground?


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Think Snow Eh!
Ox
 








 
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