Easiturn Spindle RPM
Posted: Tue 13 Jan , 2026 19:42 pm
Hi.
I recently acquired a 415V Easiturn 3 that was built in Jan 1986. It was part way through being converted to single phase. The spindle was not running but it did come with a new Huanyang HY type VFD. I have set this up and I am happy with everything so far. My main question is what is the maximum frequency that I can send to the original 3 phase motor. Alternatively, what is the maximum spindle speed of the 415V 3 phase version?
My concern is that at 60Hz, for example, the gearing means that I get a spindle speed of just over 1000 RPM. So I would need 120Hz to reach the 200 RPM in the specifications. This seems high but is it Ok?
Thanks for your help in advance
Howard
I recently acquired a 415V Easiturn 3 that was built in Jan 1986. It was part way through being converted to single phase. The spindle was not running but it did come with a new Huanyang HY type VFD. I have set this up and I am happy with everything so far. My main question is what is the maximum frequency that I can send to the original 3 phase motor. Alternatively, what is the maximum spindle speed of the 415V 3 phase version?
My concern is that at 60Hz, for example, the gearing means that I get a spindle speed of just over 1000 RPM. So I would need 120Hz to reach the 200 RPM in the specifications. This seems high but is it Ok?
Thanks for your help in advance
Howard