baldor 3 phase grinder

[bluebolt]

I recently picked up a Baldor 7" 1/2 HP grinder on a homemade stand. Problem is it's a 3 phase unit. Thinking about getting a static phase converter, as low as $59 shipped on Ebay for my HP rating. I realize the static converter will drop my HP rating to 1/3. Or should I sell or trade it for a single phase unit? I will also have to add another 220V outlet to my shop to run it but not a bad idea anyways since I recently bought a 220 welder and I only have one outlet in the shop at present for it. Thoughts/suggestions?

 

[Mavawreck]

I was just looking at this, I would think you would be ok given their reputation for being torqy. May have to give it a bit longer to get going. If you sell it, please let me know.

 

[930dreamer]

I recently picked up a Baldor 7" 1/2 HP grinder on a homemade stand. Problem is it's a 3 phase unit. Thinking about getting a static phase converter, as low as $59 shipped on Ebay for my HP rating. I realize the static converter will drop my HP rating to 1/3. Or should I sell or trade it for a single phase unit? I will also have to add another 220V outlet to my shop to run it but not a bad idea anyways since I recently bought a 220 welder and I only have one outlet in the shop at present for it. Thoughts/suggestions?

Start looking at a vfd on ebay or build a rotary phase converter, I'd stay away from a static converter.

No reason to sell at all. Pictures please.

http://www.automationdirect.com/adc...edium=cpc&utm_term=vfd&utm_campaign=ac+drives

 

[epbowen]

First thing **I'd** do is try to sell it to some who has 3 ph. If you could, with that $$ and the cost of the convertor you should be able to buy a single phase grinder.
I did that myself,but maybe I was just lucky??

 

[msnow]

Pick up a cheap VFD and you will be good to go. being only a 1/2 horse you should be able to run it with 110V and an automation direct vfd.

 

[woody 73]

Over the many years I have passed up fantasic deals on machines because they were 3-phase,(But one of these days I will bite the bullet and buy one). From what I have learned the best way to go is with a rotary phase converter.

I am sure the other ways that(see above members) are telling you is also correct,it can be either very cheap or very expensive depending on what way you choose.

For my two cents pay now for some kind of system of your choosing and never worry again about what phase the machine is ;( many people will pass up those machines because they themselves can not run them).

Keep in mind if you want to run more then one machine at once then you will need a larger rotary phase converter depending on your horsepower needs.

 

[bluebolt]

Pick up a cheap VFD and you will be good to go. being only a 1/2 horse you should be able to run it with 110V and an automation direct vfd.

Thanks for the Autmation Controls tip, something to consider.

 

[exmaxima1]

I recently picked up a Baldor 7" 1/2 HP grinder

Here's my 7-inch Baldor (single phase). Very smooth running.

 

[MotoDave]

Not to derail the thread, but any feedback on that belt grinder conversion? What HP is the motor, and do you ever have issues bogging down?

 

[exmaxima1]

I only recently did the conversion. I had the belt mechanism on a 1725 rpm 3/4 hp motor and it never bogged down, and it started instantly. But it was kinda slow to grind material. The Baldor is a 3450 rpm 1/2 hp motor, and it takes a few seconds to spool up, but it really throws the sparks.

I already have a 1.5 HP belt grinder so I can handle very coarse belts and it doesn't stall. The intent for the Baldor is much finer belts which don't need much power, so I suspect that 1/2 "honest" hp will be adequate for average applications.

 

[bluebolt]

Start looking at a vfd on ebay or build a rotary phase converter, I'd stay away from a static converter.

No reason to sell at all. Pictures please.

http://www.automationdirect.com/adc...edium=cpc&utm_term=vfd&utm_campaign=ac+drives

Here you go with pics. As you can see the eye shields are missing but it does have the heavy duty exhausted shields.

 

[bluebolt]

After some more thinking I am going to sell the grinder and keep the stand and put my USA made Black and Decker grinder on it. I want to get a Craftsman block grinder for the matching Craftsman stand I already have.

 

[930dreamer]

How much $$ and where are you located?

 

[DetroitDIESEL444]

I was lucky enough to be the only person on my street with three phase!!!

 

[cdent]

If you can use a grinder and that ones working right, you'll never regret setting up a baldor.

I'd also agree that the way to run three phase motors off of one phase at home would be the VFD. As a bonus you get variable speed with good torque at low rpm's. Many folks buy 3ph motors to run belt grinders, so that they can have good variable speed for control.