Re: Emco Turn 242 Retrofit
That's quite a motor. I agree with steryd, I would replace the motor. 11KW is pretty large to run on single phase. I have a similar sized machine and it had a 7.5kW spindle motor/VFD that I replaced with a 7.5kW servo motor so I could have a full C axis. Since I replace the original spindle motor, I have not seen the load meter go over 29%, where the original motor used to run 60 to 110% load pretty consistently. The original spindle motor was rated at 5000 RPM, but the servo motor is only rated at 3000 RPM. In my case it's no problem because for my parts I never run over 2500 RPM. The torque curve on the servo motor is much better than the original motor.
I only have single phase, 240V power in my shop, but I run the lathe with a rotary phase converter.
Jim Dawson
Sandy, Oregon, USA