I used this spindle to upgrade my Genmitsu 4040 Pro CNC, and Im happy with the result. Its powerful, im using it at 20000 rpm you can easily go to 2450 mm/s feed rate. The quality is amazing, and comes with some collects. The shipping was amazingly fast. The manual for the spindle are a bit confusing but I made it through. I though it would be quieter than a router, but the VFD fan is noisy 75db at 20000 rpm, although the spindle is silent without load, working with softwood the average is 85db (not bad, but I will need enclosure and earplugs), I reduced working time from 15min with a 75w spindle, to 3min with this 800w one so thats amazing. I would pay way more if you include 2m shielded 4 core cable soldered to the included aviation plug, and a AC cable. Because I had to buy cable, soldering iron, Sn Pb soldering wire, crimper, crimp terminals, heat shrink tube, and expend a lot of time searching, on shippings and soldering. Anyway its a great product. Thank you!
davidmimay 
