So, for example, mitsubishi EOL'd the mr-j2-* series, and released the mr-j4 series.
If you look on ebay, you can usually find mr-j2's and mr-j3's , as new old stock, for about 300-400 for drive + motor (I'm going by the 400 watt ones, so mr-j2-40 and hc-kfs43).
If you are really good at it, you can find the mr-j4's for good prices occasionally.
There really isn't much of a resale market because in the automation world, people don't buy used or eol'd stuff (you aren't going to shove used motor into critical factory machine)
I ended up getting 3 new mr-j4-40a's and associated motors for about 1000 bucks.
You can play the same game with yaskawa, etc motors.
The easiest way is to see what gets used in wood routers by typical manufacturers.
The short list is pretty much:
Mitsubishi
Yaskawa
Sanyo
Panasonic
It is hard to go wrong with any of these.
Unless you are doing something nutso, you won't need more than 400 watt motors (which, being brushless dc servo motors, have enough power to pretty much destroy every other part of your machine)
You just have to know what to look for.
So, for example, mitsubishi EOL'd the mr-j2-* series, and released the mr-j4 series.
If you look on ebay, you can usually find mr-j2's and mr-j3's , as new old stock, for about 300-400 for drive + motor (I'm going by the 400 watt ones, so mr-j2-40 and hc-kfs43).
If you are really good at it, you can find the mr-j4's for good prices occasionally.
There really isn't much of a resale market because in the automation world, people don't buy used or eol'd stuff (you aren't going to shove used motor into critical factory machine)
I ended up getting 3 new mr-j4-40a's and associated motors for about 1000 bucks.
You can play the same game with yaskawa, etc motors.