Thread: Motor change over????

As long as the replacement motor is roughly the same size, power and RPM, I don't see how it would be an issue. The machine won't care what's powering it and the motor won't care what it's powering.

Spindle speed will be 20% slower with a local 50Hz motor assuming a induction motor, so surface finish at a given feed rate might suffer. When you replace the motor, step up about 20% in power and adjust the driving pulley size to correct the spindle speed, then unit should be about the same finish v feed rate. Or alternatively, go for similar sized motor and use a slower feed rate.

Much easier would be to buy 110v - 240v power transformer. Make sure it's one with enough power. I've seen them on eBay for less than $100.00.

You would need to be lucky or very much in the know to get suitable stepdown transformer for $100, you are talking a 2HP motor here, i.e transformer rating would need to be in the region of 1800 to 2000VA to have a moderate amount of reserve.

However, when I located a unit as described on US ebay, it was listed as being 120V 12 A or 240V 6A so that particular one has a dual voltage motor and could be operated here by upgrading the wiring and switch gear to local standards, maybe a $100 proposition. Check if the one you are interested in is dual voltage. You still end up with a slower spindle speed though.