Variable speed belt sanding

S

SVander

Joined
Sep 14, 1999
Messages
9
Is it worthwhile having a variable speed option on my belt sander(4X36) and if so how do I change my standard sander into a variable speed one?
 
It increases the versatility of the machine by allowing you to change speeds. rather than belt grits.
You can go the easy route and use a variable speed pulley, but changing this is more work than changing a belt.
To make a proper variable setup, you first need either to be rich or to obtain a catalog from a surplus dealer. You need to replace yoour AC motor with a DC having the desired speed range and change the on-off switch to a variable rheostat. All this can be found in the surplus catalogs, which sell useable takeoffs from commercial machinery. You would be amazed at the difference a slight reduction in speed can make in results on the workpiece. Kind of like learning to use a sander/polisher all over again. Surplus dealers advertise in metalworking magazines such as "Home Shop Machinist".
 
Grizzly has a closeout on a 6 x 48 belt sander with a 12" disk. Was $499, now $269. This machine is supposed to have 7 speeds and weighs about 200 pounds. Seems like a good deal, so I ordered one. $309 with shipping. It hasn't arrived yet, but I'll let you know how I like it after I get it.

Maybe this machine is a better idea than messing with a rehostat on your old sander. I have a Delta 4 x 36 and it just doesn't have enough power for what I do.

Carl
 
The Grizzly is the best route to go. Everything that I have ever bought from Grizzly is made in China, but it is essentially well made and rugged. You do have to do some cosmetic work, but there is nothing to detract from the design. They are low priced machines, but it is due to the Communist slave labor in China, not to any design or mfg. deficiencies. If you can live with indirectly sending economic support to one of America's principal International Enemies, this is the way to go!
 
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