Powermatic 81

[Dan Hahr]

I just bought a Powermatic 81 bandsaw in a school auction. I may be crazy but I was unable to see it due to an injury. However, it seems go be intact and in decent condition. I figure I can spend a bit more money and have a nice resale bandsaw. I have to wait till the 24th to pick it up, but my patience is dwindling. My main worry is what motor I wound up with. I hope it is single phase but I don't recognize the plug. It was described as 240v. Can any of you tell by the plug? I will also attach the link to the auction.

Ok. I'll try that in a moment.

https://www.proxibid.com/asp/LotDetail.asp?ahid=7589&aid=84889&lid=21143791&rfp b=0#Top


Thanks, Dan

[Dan Hahr]

Here's a pic of the plug.

IMG_2083.JPG

[Matt Day]

Pretty sure it's going to be three phase, being from a school. And that looks like it could be a three phase plug, though it could be single too I believe.

[Rod Sheridan]

Here's a pic of the plug.

IMG_2083.JPG

Looks like a 3 phase cord cap..........Rod.

[Dan Hahr]

That's what I'm afraid of. What are your thoughts on getting a phase converter vs VFD vs replacing the motor?

Thanks, Dan

[Ed Weiser]

How many HP motor? If it's three or less (five or less for some brands) a VFD could give you a variable speed bandsaw with single phase 220v input--not bad, especially if you happen to need to cut other materials like plastic or aluminum. On a bandsaw a VFD is a relatively easy install.

[Matt Day]

That's likely a 3hp motor, and a VFD will cost a bit over $200. I have a Powermatic 2013 which is basically a newer version of the 81, and put a VFD on it and have been very happy with it. It's an easy install and allows variable speed, motor braking, and programmable starting time.

[Dan Hahr]

powermatic box.jpgAny clue as to what the black box is on the back of this machine?

[Dan Hahr]

Matt.

Did you use the factorymation FM50? It seems that there are several versions. Which did you get? I can hook it up to 120 or 240 if needed.
Thanks, Dan

[Dan Hahr]

I am not sure what the HP is. I took a big chance here, but I hope the frame itself is worth the gamble. I figured I could put a cheap 2 hp motor on it and have a decent saw.

Thanks, Dan

[Matt Day]

Not sure about the box, mine didn't have one.

I got the FM50-203-C.

[Matt Day]

Not sure about the box, mine didn't have one.

I got the FM50-203-C. Total with shipping was $206. Thats going to be cheaper than a new motor, assuming the current one is good.

You need a single phase 220V electrical circuit, you can't power it with 120V.

[CPeter James]

Chances are 99% that it is 3 phase. 3 phase with a VFD is the way to go. I have two on a lathe and radial drill and am converting another drill press and milling machine to 3 phase/VFD because the operating of the machines are so much smoother with the VFD and you get speed control as a plus. You can easily make a remote control so that the controls are right where you want them and even have a readout of blade speed in ft/sec if you want. The wiring of the VFD is simple and you eliminate all the relays and other stuff in the "starter" box on the machine. It is a clean installation.

[Dan Hahr]

That will be my plan if it's 3 phase. Hope this works out!
Dan

[Rod Sheridan]

That's what I'm afraid of. What are your thoughts on getting a phase converter vs VFD vs replacing the motor?

Thanks, Dan

Definetly a VFD.

I have the saw with a VFD................Rod.

Powermatic 81.jpg