Need Help finding a replacement stepper motor

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I am having a hard time finding a replacement stepper motor for a 75hp ingersoll compressor butterfly valve.  Does anyone have any ideas of something that will cross I have been told its obsolete.  Thanks!

Lincoln 350MPMillermatic 350PSyncrowave 2501969 SA200HTP Invertig 221
Reply:http://www.radwell.com/en-US/Buy/EAS...CES/LA34BJK30E
Reply:

Originally Posted by Bluewelders

http://www.radwell.com/en-US/Buy/EAS...CES/LA34BJK30E
Reply:Amazon has several stepper motors that are 1.8 degree, I don't know if they have anything that will work for you, but maybe.NRA LIFE MEMBERUNITWELD 175 AMP 3 IN1 DCMIDSTATES 300 AMP AC MACHINELET'S GO BRANDON!"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety.” BENJAMIN FRANKLIN
Reply:Thanks I found one last night on amazon that may work.  The problem is this one has a splined shaft.  Can't seem to find any with same shaft but I think I am going to order on and see if I can modify it to make it work.Lincoln 350MPMillermatic 350PSyncrowave 2501969 SA200HTP Invertig 221
Reply:Best of luck my friend, seems Amazon has some of everything.NRA LIFE MEMBERUNITWELD 175 AMP 3 IN1 DCMIDSTATES 300 AMP AC MACHINELET'S GO BRANDON!"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety.” BENJAMIN FRANKLIN
Reply:Thanks I ended up getting a motor with same specs except a 1/2 inch keyed shaft.  This one was 3/8 splined.  Anyways, modified linkage to fit new motor and compressor is up and running again.Lincoln 350MPMillermatic 350PSyncrowave 2501969 SA200HTP Invertig 221
Reply:Fantastic, I hope my info was helpful.NRA LIFE MEMBERUNITWELD 175 AMP 3 IN1 DCMIDSTATES 300 AMP AC MACHINELET'S GO BRANDON!"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety.” BENJAMIN FRANKLIN
Reply:Hey Capt B, I am in the same boat, do you remember what motor you bought?
Reply:Luckily enough, I had the receipt for it in the compressor maintenance file on my laptop.  Make sure this works for yours or give them a call but this is what I used.  If I remember correctly I had to modify the linkage slightly to fit the shaft.

Lincoln 350MPMillermatic 350PSyncrowave 2501969 SA200HTP Invertig 221
Reply:Just realized you can't see that image very well.  this is the motor 34Y004S-LW8 - NEMA 34, High Torque Step Motor, 2.56' Length, 2.0A, Single Shaft, 8 Lead WiresLincoln 350MPMillermatic 350PSyncrowave 2501969 SA200HTP Invertig 221