I have recently had 3 phase power added to the workshop, so want to take the opportunity to upgrade my Plug&Pray Avid CNC 3HP spindle setup. I’m not sure of the pro’s and cons of some of the spindle options though.
(Please note: A US-supplied option like the SC30 is not an option - the US$ is just too strong, and postage to Australia daft, so I’m stuck with a Chinese import).
I’m planning to convert to a 3P VFD, and a water-cooled ATC spindle. I don’t actually want the complexity of a full ATC function at the moment, but like the idea of having a bunch of tool-holders with tools installed that I can change quickly and easily with the press of a hissing button. (Maybe one day @subnoize will have his little beast in production and I’ll be in the queue for the next upgrade)
Water-cooled to cut down on the noise.
I’ll get a Powtran VFD - I have one on my bandsaw, and another on my cyclone, so I’m vaguely familiar with them, they’re reasonably priced (as opposed to cheap junk), and are still going strong after several years’ use.
I’m an enthusiastic hobbyist, so this is not a production environment. I churn out things like workshop/kitchen cabinets and butcher some Australian hardwoods. I’ll get to a bit of 3D carving in the next decade or two at current rates of progress!
- ISO25 vs BT30 vs other. The ISO25’s seem quite a bit cheaper, and I’m not going to need to hold anything bigger than half an inch…
- Spindles seem to be offered as 400 or 800Hz - How does the frequency affect things (380V 400Hz vs 380V 800Hz)?
*Jianken seem to have a reasonable reputation, but have a bewildering range of spindles. I was thinking of around 4-5HP (or 3.2-4ish kW). Their JGL-100 or 110 range looks like it might be a good starting point to chat to them?
Does anyone have experience of any other ATC spindles? Or other suggestions/things I should think about?