Posted Sun Apr 29, 2012, 1:35pm Subject: 220 Machine on 110 plug
Can anyone help on the technical stuff here please? Wayne?
I have found a grinder I want to buy for a steal...under$50 but, it's 220. I know from living abroad it's taboo to use the 110 appliances on 220 but can it be done in reverse? Aside from the lack of power and slow down are there any other ramifications to either the operation or the well being of the machine if this is done?
Posted Sun Apr 29, 2012, 8:44pm Subject: Re: 220 Machine on 110 plug
Yes, you can safely use 220V in 110V power outlet with the transformer. Basically you will need to know the required wattage and buy a step-up 110V to 220V transformer with sufficient power rating. You can also install this as a wall outlet Click Here (www.amazon.com) or buy a stand-alone unit Click Here (www.amazon.com) this is sort of like a wal-wart power supply for you to plug in 220V appliances. Either way, you should expect to spend $30-50 or more, depending on the wattage.
Posted Sun Apr 29, 2012, 9:12pm Subject: Re: 220 Machine on 110 plug
Thank you for the answer. My husband has agreed to install a new 220 outlet for me if it works. Can I try it out by plugging it into a 110 or do I have to get him to rig something up? I'm sorry to be bothering the list with this but the hubby is working a 20 day shutdown at 7-12's and I just don't have it in me to pester him right now.
Motors generally don't like to be run at low voltage ... they can get hot and burn out the windings they also don't have as much power (which contributes to the overheating as they are working harder).
However ... I picked up a 220v Mazzer grinder that had been running for years on 110v without any problem. I've used it on 110v for years since then without any problem. If it were running for hours at a time it might overheat but it only runs for a few seconds at a time to grind one shot at a time. It seems to have plenty of power.
There are lots of different types of 220v motors in Europe though ... like 3 phase ... which would be a problem.
Also ... most grinders made for 110v 60hz run faster RPM than the same grinder made for 220v 50hz. They change the winding to handle the lower voltage for a N. American grinder but they don't do anything to change the speed so a European Super Jolly (for example) spins at a slower RPM than an American Super Jolly.
Yes late to the party but they pretty much nailed it.
A transformer will run it just fine. Also as said 220 v motors will draw a lot more current on 110 and thus heat up a lot but to just see if the motor works a short run should not hurt it.
In real life, my name is Wayne P.
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Posted Tue May 1, 2012, 11:21am Subject: Re: 220 Machine on 110 plug
Hi Tami,
You did not say which grinder this is. Is it single phase? If it is three phase you may have issues getting three phase power in a residence.
Depending on the motor design it may or may not run on 120 Volts. What is the power requirement? For something like a Mazzer SJ a step-up transformer is practical but I think it will be bigger than a "wall wart".
Phil
TamiP Said:
Can anyone help on the technical stuff here please? Wayne?
I have found a grinder I want to buy for a steal...under$50 but, it's 220. I know from living abroad it's taboo to use the 110 appliances on 220 but can it be done in reverse? Aside from the lack of power and slow down are there any other ramifications to either the operation or the well being of the machine if this is done?
Posted Tue May 1, 2012, 11:23am Subject: Re: 220 Machine on 110 plug
I appreciate the answer but I decided not to get the grinder. After much research I found the parts to be unavailable and would have had to order burrs from Europe.
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