Surface grinder

That's the first I've seen an aluminum wheel used. Thanks for sharing. Is it the hardness that makes them superior to the serrated rubber wheels I wonder? I figured you could hog more steel cooler with a serrated.
Only asking because of my very limited experience.
 
I used a hard rubber serrated wheel 25 years ago and was very happy when I switched over to a solid wheel. My wheel is made from steel.

Originally, solid wheels and 984 belts were developed and used by foundries to grind risers down in seconds, it was faster than cutting them off. I was the first or one of the first to use a solid wheel. At the time, I talked to 3M directly while they were developing this technology. Again, good belts are a must. When I try a new brand of belts, I first put it on the SG to see how they do. It tells me immediatly whether or not it is a quality belt.

Hoss
 
DevinT said:
Originally, solid wheels and 984 belts were developed and used by foundries to grind risers down in seconds, it was faster than cutting them off.
Click to expand...

that's true, I worked at a investment foundry for 12 yrs, in the last year I ran the finishing dept.
we ground off gates on wide Norton ceramic belts using fixtures to hold the castings and hydraulic pressure to feed them into the belt, which was often on a solid alum wheel :) We used $100K of belts per year.
 
DevinT said:
I used a hard rubber serrated wheel 25 years ago and was very happy when I switched over to a solid wheel. My wheel is made from steel.

Originally, solid wheels and 984 belts were developed and used by foundries to grind risers down in seconds, it was faster than cutting them off. I was the first or one of the first to use a solid wheel. At the time, I talked to 3M directly while they were developing this technology. Again, good belts are a must. When I try a new brand of belts, I first put it on the SG to see how they do. It tells me immediatly whether or not it is a quality belt.

Hoss
Click to expand...

Hoss,

You certainly have my attention about the solid wheel. How accurate is the solid wheel over time, does it deform or need to be dressed like a stone wheel, how often? Any advantage to aluminum vs steel? I currently have one belt which I use the 984's with and one stone SG, but if I can get the accuracy of a stone with belt and solid wheel will convert the stone in a heartbeat!

Thanks,
Alan
 
Thanks for the info Devin, I'll turn a solid wheel in the new few days and give it a shot.

I expect I'll still always favor stones for finish work personally, but I'd like to see how the 984s fair with a solid wheel for rough work. These are my go-to belt for flat platen grinding, but they definitely don't perform how I'd expect with a contact wheel on the SG.
 
Speaking of solid wheels and their original application, has anyone ever tried making an aluminum contact wheel for real rough work such as stripping forge scale?
I'm wondering if it might be more like a stone than a rubber contact wheel...
Belt grinders are great, but that 5hp Baldor pedestal grinder at the museum beat the piss out of belts for heavy stock removal removal
 
Once again: thanks for the tips!!!
I'm thinking about give it a try to belts...
Can you show a picture of the belt arms you designed?
 
thanks a lot guys,
With Javier we are thinking of this modification.. we have some issues such as getting the right hardness on our rubber pulleys.. or getting them turned in steel.. or 7075 T6 aluminum....
The belt arms you are showing are very simple yet efficient.
Thanks!!
 
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