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gcw
03-30-2009, 08:38 AM
Does any one have a speed chart for a very old Rong Fu style mill drill? It has four pullies and three belts. Most of the new ones are only two belt, three pullies. If it helps any, it is painted a dark green. It is no a good thing to be guessing the RPMs with the price of cutters
George

lotus23bsr
03-30-2009, 10:00 AM
Go here
http://groups.yahoo.com/group/drillmill/
Then look in the files section for a file called "King PD - 30 Milling"
On the first PDF in the list on PDF page 6 there is a diagram for a mill with 4 pulleys showing the speeds.
You might have to join the group in order to see the files section but it wouldn't be a bad idea to join this group anyways since you have this mill :)
HTH
Gerry

PS
I tried to attach the pdf but I see I am not allowed attachments... maybe my post count needs to higher here before I can attach files?

Benta
03-30-2009, 10:21 AM
Doesn't the motor have an nameplate saying which speed it is?
If yes, just measure the pulleys and calculate the speeds.

Benta.