My machine is an AvidCNC 4'x10'. It's not a standard size but AvidCNC's are like legos so you can build what you want, basically. In this video I'm upgrading my spindle to the 8.7HP plug and play spindle. I won't be getting the full 8.7HP though. That rating comes from running it with a 3 phase power source. I'm running mine on 240v single phase. My power rating will be 6.4HP. That's more than double the power of my previous spindle. 
https://www.avidcnc.com/

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