RATTMMOTOR CNC Spindle Motor Kit 220V Square 2.2KW Air Cooled Spindle Motor ER20+2.2KW VFD Inventer 220V Spindle Motor Speed Control Variable Frequency Drive Converter for CNC Router Milling Machine

We ordered the first one June 9th. Controller was defective so we returned and got a second one on June 20th. Installation not bad although my tech guy said the controller was kind of a pain to get set up. He said documentation was poor at best.However, it worked great... for 4 months. And then the bearings froze and it seized up in the middle of a job. Kind of a costly investment for only 4 months of productivity. My wimpy Dewalt 611 far outlasted this heavy duty spindle.