High speed spindle for Sieg X1

[ecat]

I wouldn't be so sure. From basic physics Torque is proportional to Power/rpm. So the X1's 150W will give approximately 60% more torque at 1000 rpm on it's low gear than a 2.2 kW spindle running at 24000 rpm (assuming similar efficiency). Of course, how well it behaves at lower speed will depend on the motor and controller design.

Russell.

Thing is, I can do little to increase the speed of the X1, there may however be a way to increase the low rpm torque of the 2.2. Sensorless vector drive is available on some quite reasonably priced vfds, I do not know if such vfds can drive a Chinese spindle. The few I've looked at state 'standard induction motor', eg, http://www.inverterdrive.com/group/A...F/default.aspx .

The trade offs are:
More expensive than Chinese vfd but possibly more reliable
High end is caped to around 300Hz in vector mode
I have no idea if it would work - I know nothing of motors and drives

Nothing, it's a dick slapping contest because I drive my C0 with the 15Kw motor on the big TOS. :rofl:

Like an elephant humping a Chihuahua!

Anyway, enough dick play! We all want to see your list of 6040 improvements, costs and test results:clap: