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Pipe Threading, Upset & Casing

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NEW Mori Seiki NT 4250DCG / 1500SZ

CNC Pipe Threading

Complete valve machining in
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NEW Warner & Swasey SaddleType Turret Lathes
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Warner & Swasey SC-28 Rebuild and Retrofit

Performed in 2012 at MMT

Marathon Machine Tools, Inc. has been entrusted with the complete rebuild of a Warner & Swasey SC-28 CNC lathe by National Oilwell. The job included the Fanuc retrofit of the machine utilizing a Fanuc 0-iTD control package and a 60 hp Fanuc main spindle drive system, way grinding, replacement of ball screws and bearings. Marathon earned this retrofit job after providing National Oilwell with another Fanuc retrofit of a Mazak Power Master lathe, to the complete satisfaction of its customer.

Following is a brief photo documentation of the project:

Original DC main motor
New Fanuc AC main motor
Old, messy electric cabinet
New, state-of-the-art electric cabinet
New Fanuc Z-axis servo motor with gearbox
Machine before rebuild
Machine after rebuild
Control, turret before rebuild
Control, turret after rebuild
Bed before rebuild
Bed after way grinding
Rear of machine before
Rear of machine after rebuild
Laser accuracy test performed by MMT on X and Z axes after retrofit

For further information and if you are interested to make a brand new machine out of your old and trusted work horse, please contact:

Marathon Machine Tools, Inc.
George T. Dabis
281-812-2324 or