Re: 220V spindle on 110V?
Quote:
Originally Posted by
rs4race
Hi all I know this has been asked before, but I cant seem to find the information I'm looking for. I'm interested in getting a spindle with er16 for a benchtop mill (similar to a router in style) but I need to be compatible with 120V (US). The smallest spindle that I've found with er16 is 1500W and 220V. I saw that there are vfd's that will input 120V and output 220V but the claim is that performance is significantly decreased, but I haven't seen how much. Does anyone know how the performance is effected? I imagine its reduced torque, but not sure how this looks through the rpm range. I'm pretty happy with 200W cuts on my g0704, and this machine I would be happy with the same, but if I maxed out at 750W that would be enough for me.
So if all you need is 750W at 120V with ER16 collets, then why not just buy an 800W 120V ER16 spindle. Do a search and several choices should be available. Most inverters appear to be 240V, but a few of them are 120V, especially in the 800W range.
Steve
Re: 220V spindle on 110V?
I see what you mean about limited options. I looked further and see mostly 800W 120V ER11 spindles or 1500W 240V ER16 spindles. Maybe you have to decide if ER16 is that important to you, then you may need to spring for a 240V power outlet. ER11 is plenty for me with my 800W spindle. I mostly use 1/8" and 1/4" router bits, but have a cheap collet set for the occasional random size bits. I think I purchased it from AliExpress. The price including shipping was slightly cheaper than EBay and they have a lot of vendors.
I believe that the inverters operate similar to a current limiting power supply. They have voltage and current limits. They normally send out the target voltage, but reduce the voltage if the current is too high.
Steve
Re: 220V spindle on 110V?
@rs4race. Is running a 220v 1p line from the breaker box an option? If not, do you have access to dryer or stove 220v receptacle?