Cork belts

[Drac]

Hi guys,

Getting ready to order some belts and read thru the posts on the cork belts. They cover how to break them in and how they last. Are they work the extra cost? Do they run cooler like the ads say?

I am using a 42X2 grizzley grinder running per them 3000 ft/min. I have been using zirconia for hogging and j-flex for shaping and hand sanding to fix everything I messed up on the grinder. Since this runs fast it gets hot fast so cooler running would be nice.

Thanks for your time,
Jim

[Bob Warner]

I can slow my grinder down, so I do. However, you should be able to just cool it more often. I like the cork belts.

[george tichbour]

My grinder runs about 5500 SFM and a well worn cork belt with green compound on it takes a long time to heat up a blade. I can go from the cork belt to the buffer and get a mirror finish in less than three minutes per side on bowie knives.

[tmickley]

Some green chrome stick's better than others. I have two kinds in my shop. The dryer stuff from from K&G is excellent on the buff wheel but just flies off on the cork. I use Masters Green chrome on cork and I can get up to 2500sfpm before it really starts flying off. You'll really like it once you get the hang of it.

[Drac]

Thanks for the replys,

I was thinking more of the cork belts that come with the abrasive. Because the grinder moves so fast I have a problem with heat in the higher grits. I have a time getting across the width of the blade before it gets hot.

I want to go to something slower but the best bargain I'm seeing is the KMG and that's just a little ways in savings out. The Grizzley is cheaper, but I think I want to wait the extra couple of months and go with the KMG.

Thanks for time again,
Jim

[george tichbour]

I use Hermes 400 grit SC superfinishing cork belts. The extra cutting from the grit helps remove lines. The compound stays on worn belts better than on fresh ones.