RATTMMOTOR CNC Spindle Motor Kit 220V 2.2KW Square Spindle Motor Air Cooled ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Milling Machine

Nice economical solution for 150. wish it was a little smaller.

I bought this kit to replace another motor and figured I would just do the motor and vfd at the same time I ended up not using the vfd but the spindle has performed perfect. I probably have 10 hours on it with no issues the temperature seems to stabilize around 95° f. With a laser thermometer. I would have no problem buying the exact same motor again

There are 2 prices in the listing with no explanation of the difference. I bought the cheaper one not knowing that it is a 2.2k spindle but with a 1.5K VFD. The more expensive one has a 2.2k vfd from what I can tell. It runs fine with the 1.5 so far but I would have liked to know that before buying it, it could have easily been clearly stated in the listing. I was able to download a file from their website with some more useful information on the wiring of the VFD. They had sent me an email after purchase which seemed to suggest not to ground the spindle but I think I just cant understand the translation of what they were trying to say. I studied the wiring diagram quite well before starting and my testing went flawlessly. I screwed the VFD and the spindle to a piece of plywood for testing in case of any motor torque related movement of the spindle. I also tightened a dowel pin into the collet so nothing would go flying. For example the collet nut as you never know if the spindle will start clockwise or counter clockwise the first time or what RPM it will start at. No flying nuts wanted. Its ok to take the nut off and set it aside too but I would be afraid to misplace it. While anyone can wire one of these to some degree and get it working, its worth noting that there are lethal voltages present and exposed after completion of the wiring on the VFD. The VFD should be installed after testing in a suitable enclosure, not on a wall or directly on a machine. Chips, dust, debris, or any object can find the contacts and cause all kinds of unwelcome events that are harmful to nearby people and property. People and objects can also come in contact with something inadvertently that can cause injury or death. Sorry for the safety rant but I have seen so many of these installed in weird places with bad wiring and so on. I saw one installed inside a machine enclosure with the machine! The dimensions for the spindle mounting holes are not all listed anywhere I found so my measurements are- the 7mm diameter holes are 35mm spaced and 95mm side to side. They measure pretty close to those numbers.

Wired it up, works well. No programming required on supplied drive, plug and play. Seems to have plenty of power for my application.

NOTE: The VFD (HY02D223B) does not easily connect to Mach4, I'm still trying after 2 months. Also, it uses non-standard MODBUS wiring/config. A number of folks say they've worked it out but I've tried everything so far and the Mach4 help desk has not been able to do it yet, they're still helping me. Short answer, for my next purchase I'm moving up to a 5 or 7.5hp spindle so I plan to buy something more mainstream that connects easily and has stardard MODBUS and/or an Ethernet card options for simplified connectivity. Now I use a long cable to start/stop and set the speed using the removable front panel and it's fine for now, but when I start production and begin to cut metal and other materials that require speed changes, I'll probably be shopping for a new VFD. The Motor is great. Quiet(ish) and powerful. Easy to mount, and if it rotates backwards simply switch any two of the three wires at the motor. Any two wires, it's no big deal BUT NOT THE 220V POWER INPUT WIRES from the wall. You swap two of the smaller, colored wires that run from the VFD to the Motor. Don't get this wrong and DO DOUBLE CHECK MY GUIDANCE, I've done this, but I am not an electrician or professional, just a dude. In short, a good start point. PS, I'm real, Jim from Rochester, MI - just a home build from my garage that runs great.

Se siente de buena calidad, buenos materiales, muy bien diseñado pero lo devolví porque es muy pesado para mi maquina