Arc Euro Trade High Speed Spindle Motors

Edited By NJH on 14/06/2011 21:09:45

Had great success with my ER 16 spindle from Euro Arc but programmed my invertor to use on on another motor and for forgot to adjust the base frequency back afterwards---result smoke from the spindle motor---havent tried it since!

Presume its not possible to rewind them and its a bin job?

Bet John would have a good answer!

Thanks Peter

Andrew,

A significant proportion of the noise generated will come from the cutter and that will depend on your material and machine set up. Your motor may be quiet but will it be the high speed cutting noise that wakes your neighbours?

Bob D

I was thinking about grafting one of those high speed units onto a BCA type jig borer instead of using the antiquated belt driven spindle.

One reason is lack of available resonably priced collets on the BCA, and lack of high spindle speed for small cutters.

My only worry is that for the odd times I want to use a flycutter or a boring head, would I still be able to use the high speed unit but running very slowly, or will it over heat ?

Is there an option of forced ventialtion on the motor, or does it have a direct coupled fan ?

Any thoughts ?

Phil

I have a feeling that I read somewhere that the min speed to get decent ventilation is 8-10,000 rpm for these units. Due to my silly mistake mine failed as it had full power at 1440 rpm and the current limit was set around around 12a---hence no cooling to speak of.

The fan is directly driven from the rotor but a pipe and flange could be added to push cold air through at lower speeds but essentially I think it is designed to run fast which is what its good at.

Will have to get another unit, no run out to speak of and handy with the collect chuck

Peter

Have a look at this thread

It is a relatively low speed one but he's made some higher speed ones on the same principle; see further down the page.

Russell