10-17-2018, 07:42 PM
Can’t answer for EOU Mr. KG, but I have used extremely fine (1000 – 5000 grit) belts with the Kally and don’t notice much heating at all. As I have said, I use very light pressure when grinding. That’s not to say heat can’t be generated with the Kally. I can get stuff really hot with the Kally by applying a lot of pressure. Grinding off the head of a bolt against the platen works well for generating heat even with 60 grit Zirc belts. Way too hot to touch. But then I can tap an egg with a hammer and not crack the shell, or obliterate it into a disgusting mess with more pressure. Just depends on how the tool is used.
The thing is that when sharpening with light pressure the blade is in contact with the belt in any single spot for a very short time and with little pressure. Any one spot for what… maybe a second? Not very long at any rate, and then the blade cools in open air. At least I think that is what is going on.
The Kally runs at 1725 RPM. The 1/3 HP motivates the belt to 548.64 m/sec (1800 ft/sec).
The thing is that when sharpening with light pressure the blade is in contact with the belt in any single spot for a very short time and with little pressure. Any one spot for what… maybe a second? Not very long at any rate, and then the blade cools in open air. At least I think that is what is going on.
The Kally runs at 1725 RPM. The 1/3 HP motivates the belt to 548.64 m/sec (1800 ft/sec).