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Rockwell RT 40 Table Saw motor options

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715 views 2 replies 3 participants last post by  CaptainKlutz 
#1 · (Edited by Moderator)
So I just purchased a RT 40 and was wondering if its possible to put a single phase motor on it instead of the triple phase. Oh, also, stole it damn thing for a song, way under a grand. Need to know how big a motor I'm gonna need to properly run it. Thanks in advance.
 
#3 ·
Single Phase possible? yes
Check your current motor frame size and mount. Those saws use standard base plate flange mount, and are easy to change (excluding the weight). The RT40 motor hangs upside down on base plate .vs. older Rockwell that hung sideways. Expect you will find a 213/215 frame motor with 1-1/8" shaft, weighing over 75lbs; so be safe changing it out.

The RT40 were commonly sold with 5HP & 7.5HP motors. Newer Delta models offer a 10HP option, likely for folks spinning the 2" wide 12" OD dado blades with extended arbor. The arbor on the 12/14" saws is removable, and there are different sizes. Check your arbor closely before buying blades. Some models would support a 5/8" saw arbor, and run 8-10" blades on that machine. Which also means a 3HP motor could be used, if not sawing the 4" thick timber intended to run on that monster 14" saw blade. :)

If you have a 5HP 3PH motor, you will find it cheaper to buy a VFD; than buy a new 5HP motor. There are many threads on using VFD with 5HP motors if you want more information.

Best Luck.
 
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