Quote:
Originally Posted by SteinHDan
If you select a 4mm bore, then you can use a gear motor like this one:
- http://www.ebay.com/itm/381486411254
60 RPM / (66 teeth / 12 teeth) = 60rpm / 5.5 = 11 RPM
11 RPM for the swing would be quite ok, I think.
Best regards,
Stein :-) |
Nice to see old rigs like this converted. I think on a machine this size-3rpm would be the maximum you want for swing speed and maybe slower. On a dragline with hi-speed swing you will be slinging that bucket around uncontrollably. Also, the longer you make the boom the more boom tip speed you have. You also need a very smooth speed controller for the swing to keep the bucket from swinging wildly. Good luck and have fun.