I do not have a Mechatron spindle, but will answer questions as best I can.
- I am sure you have, but doing an online search will yield many answers. I personally chose water cooled (I also bought a chiller - not radiator type - to keep the spindle as cool as possible). Water cooled benefit from not relying on fan to cool spindle, which can limit low RPM use unless you have a spindle with a fan not operated by spindle shaft RPM. Some say they are quieter - but that will most likely be drowned out by my other peripherals (vacuum pump, dust collection, etc)
- From what I understand these spindles (possibly VFD) can be damaged at low RPM/frequency, and this is best avoided. I plan to mill aluminum, and will adjust my tooling, feeds, and speeds for use with higher RPMs. It can be done quite successfully from what I have seen.
- I sourced my Omron MX2 V1 (rebranded Hitachi) from a local Canadian supplier. They were out of stock - everywhere - so I still have a few weeks to wait. Apparently when Omicron hit the main Canadian distributor closed their Ontario warehouse and moved operations to Their Texas facility, hence the wait to get it from there. I was told they were also waiting on new stock, and they were sending them out based on order date. I almost bought a European model ‘E’, but decided not to. Omron told me they were the exact same except for certifications and labelling. I also like a challenge, and this is my new hobby, so I built all my electronics and pneumatics enclosures for this project. That is extra time and potentially extra cost.
- I believe the connector is a European crimped pin type connector - M…? - but Aiph5u would know more about this.
- I am in Toronto, Canada, and my wait time estimate was 4-5 weeks. I believe the Hitachi WJ200 is the exact same VFD - perhaps that one is easier to source. For me at the time, neither was readily available for the 2.2 Kw 220V model I wanted.