I just purchased a 3 phase Delta abrasive chop saw at my local colleges surplus auction for $265, although we have a phase converter in our shop I would like to go ahead and convert it to single phase just for versatility sake, and restore it back to its original colors.

I would like to find a replacement single phase what do you think would be the best.

Heres the info on the machine

Delta
Type TS
Frame: 225
3 HP
1725 RPM
CAT X7202 (EA?)

There is a 6" pulley on the motor and a 3" pulley on the blade shaft.


Would a 1.5 hp single phase motor be enough with a 3450 rpm motor and 1:1 pulleys?


(pictures to come)

No. You still need 3 hp. The pulley changes rpm and torque, but not hp.

I would still need 3 hp even if if im using an abrasive blade as opposed to the metal blade it was built for?

Is it for metal, or are you trying to convert a wood saw?

Why don't you sell it to me for $265 and buy a 120V abrasive chop saw at Home Depot? The Dewalt I'm looking at has a 15 amp, 5.5 HP motor and sells for $200.

If you convert it over to an abrasive blade, be sure the rpm of the blade is not exceeded. :nuke:

Is it for metal, or are you trying to convert a wood saw?

Why don't you sell it to me for $265 and buy a 120V abrasive chop saw at Home Depot? The Dewalt I'm looking at has a 15 amp, 5.5 HP motor and sells for $200.

If you convert it over to an abrasive blade, be sure the rpm of the blade is not exceeded. :nuke:

15 amp @ 120V 5.5HP motor? no.

15 amp @ 120V 5.5HP motor? no.

Roger that. A 3 hp 120V single phase motor would pull like 38 amps. I think he is trying to keep it under 20 amps, thus the 1.5 hp motor.

I'm just sayin' if he wants a machine he can plug in anywhere and wants to convert to abrasive blades, why derate this one, why not just buy one off the shelf?

Roger that. A 3 hp 120V single phase motor would pull like 38 amps. I think he is trying to keep it under 20 amps, thus the 1.5 hp motor.

I'm just sayin' if he wants a machine he can plug in anywhere and wants to convert to abrasive blades, why derate this one, why not just buy one off the shelf?

Well mainly I want a solid saw that I can cut up to 1/2" steel stock faster than I could with a normal off the shelf chop saw, not to mention its already bought and paid for :flipoff2:

So generally what rpms are most abrasive blades rated for?

It will state on the blade what the maximum RPM for that blade. Do not exceed that RPM. I don't think you wil find a 120 VAC motor within your desired specifications, 240 VAC maybe. best bet is to call stores that sell motors and see what they recommend/offer. You will almost have to stick with the frame type/rpm to allow changing the motor without mods, shaft diameter and length are also considerations, good luck.

Well mainly I want a solid saw that I can cut up to 1/2" steel stock faster than I could with a normal off the shelf chop saw, not to mention its already bought and paid for :flipoff2:


HP is a measure of how fast you can do work. So, if you want to do work fast you need lots of HP. That off the shelf chop saw is designed to maximize performance off a standard 120V, 20A circuit. If you want to cut faster than that you will need more amps, more volts, and probably both so you are gonna lose the convenience factor of being able to plug it in anywhere.

Wasillashack is right on target. There will be a frame type on the motor. If your new motor is the same frame it will be a bolt up deal.

One last point, you want a TEFC (totally enclosed, fan cooled) motor so the metal dust doesn't get in it.