Genmitsu GS-775M 20000RPM 775 CNC Spindle Motor with ER11 Collet Set, DC 24V, High Power, Noise Suppression, Electrical DC Motor for 3018 CNC Router Machine

If youre like me and upgrading the spindle on your cnc, youll probably be recommended this a lot, and honestly theres a reason for that, the standard motor on the cnc is 7k RPM, this is 20K and so a major improvement, if you want to feel the full effects of that, this will need its own power supply as it takes a fair bit, but it can still be ran at speed without just having less torque to it, the nut and collet provided is alright quality but safe yourself the hastle and buy one of each individually, youre buying a spindle, not those parts and so may be slightly off and make noise, which is why Ive given it a 4/5 on accuracy, as the vibration from that makes it majorly louder, as well as the added speed of course, but still having this spindle at such a low price has made milling softer materials so so much easier and better, with it even milling aluminium at a push (this is all without its own power supply like I said).So overall this spindle will get your job done, and done well at that, it is still a budget spindle, but is a damn good one and I totally recommend it.

The motor is very loud but runs much truer than original motor in my 3018.

Works well as a drop in replacement for the original that came with the CNC, it's so noisy!

Worked fine for 37 days the vibrating violently. Checked collet nut fixing mount everything ok when turned manually the spindle grinds. Is after 30 days so says cannot return so how do you get warranty repair on this product normal channels are just sending me round in circles

This spindle is a great upgrade for a standard 3018 setup. No modifications are required to install it. I simply removed the stock unit and replaced it with this. I'm now able to cut twice as quickly.Very pleased with this purchase. Please note that this spindle is loud. But this is something you should expect as it's running at more than double the speed of the stock spindle.

Cracking little spindle

I bought this 20,000rpm spindle motor as the stock 9000rpm motor was barely fast enough for PCB isolation routing.Initially on first run up I was shocked at how much vibration and noise there was!!After investigation, this was not a fault of the motor and spindle itself, but the collet nut being out of balance. I STRESS to anyone experiencing big vibration on these motors that they try running it with the nut and collet removed!! Mine was very smooth with very little runout.After trying several nuts, only 2 out of 6 were acceptable (the others shook the whole machine ridiculously!). I do believe there are nuts with balance hoes available.Coupled with a home made soft start, I'm now really happy with the spindle, and making pcb's for fun!!

Got this as an upgrade for my cnc machineIts loud but 100% works faster than the original motor