Capacitor-Run or Cap-Start motor for a Jointer?

Question

Hi folks,I've just bought an old 3 phase 9" Jointer and need to obtain asuitable 240 Volt (UK) single phase motor.Which type of induction motor would normally be fitted to a9" Jointer, Capacitor start, Capacitor run, or Cap start and run?Also what output HP would you recommend?Capacitor run motors seem to be readily available and the cheapest,but would they have enough starting torque to spin up a 4" diametercutter block (only twin bladed unfortunately).I'm currently thinking about ordering a 2HP output Cap-startone from   tried to order a cap-start and run from Axminster,but oddly they only do one that runs in the wrong (clockwise).Thanks,Mel

George · Accepted Answer

Jointer is not a high-torque startup.  Induction run ought to do the job.1.5/2HP would be my choice.Please tell me that it's not a square head on that beast.

Andy Dingley · Answer

Try Machine Mart. Much better quality motors than Northern Tools, and you don't have to deal with Northern Tools' idiot packing staff and downright rude telephone staff.

Get on MM's mailing list, wait until the next Bank Holiday special and "members only day" and you can save 17.5% too.

Mel · Answer

I will go for a 2 HP motor then, just in case the manufacturer's quoted output figures are on the optimistic side.

No this beast's head is circular, I'd imagine a square head would be rather too prone to causing kick-back.

Thanks,

Mel

George · Answer

Good deal.  Square ones pull things into the necessarily large gap.   I'm amedic with one experience of an ancient square-head jointer (12in, BTW) anda man with half a palm left ....

Mel · Answer

Thanks for members day tip,  I've just registered for their new cat. Don't thinkI can wait for the next discount to get a motor though.

CW · Answer

No more so that a round head. > I'd imagine a square head would be

Capacitor-Run or Cap-Start motor for a Jointer?

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