Hi guys!
I'll be upgrading my "spindle", currently a wood router and I have a dilemma: I've found on Aliexpress spindles that the seller describes as "for metal and hard wood".
Like this: Professional Metal working spindle 2.2kw spindle motor for iron,copper,steel 800Hz Pole=4 & Fuling VFD & 85mm holder & 75w pump
https://www.aliexpress.com/item/32985780664.html
They claim the spindle has steel chassis (vs aluminium for "standard"), ceramic bearings (for standard it's an option). And they are more expensive...
This 2,2kW one costs the same as 3,2kW "standard" spindle:
3.2kw ER20 water cooled spindle kit 220v / 380v 3.0kw & 220v 4kw inverter & 100mm spindle brack & 75w water pump & 5meter tube
https://www.aliexpress.com/item/32945024944.html
The added bonus for the latter is a bigger VFD, which is a good thing.
My target is wood and sometimes aluminium. Totally hobby, but I'd like to buy as universal spindle as possible in that budget (max 700$ for a complete set), so it's as least a little bit future-proof. I assume that 4P spindle would have better low rpm performance...
At some point I will try to touch steel, but more out of curiosity because my machine is not rigid enough.
Power available is 220V, single phase.
My question is - which set makes more sense? Is it more universal? Is anyone using this "metal" spindle?
Appreciate any advice.
Cheers,
Martin