Hi Vedran i only follow your lead and i found this information in user manual -lower speed for outer grinding and higher for internal grnding? i understand that 4500rpm are enough and still firs version is capable handle 8000rpm which is midle range of speed but for safety reason if somebody want to try advise of user manual 12000 rpm for internal frinding wheel will not explode in grinder guard ( probably for internal is the longer arbor / shaft/)?
We DON'T need higher speed wheels, you're not supposed to use them above 4500 RPM anyway.
Hopefully other member sing up for some more.
Regards
Vedran
On Mon, May 19, 2025 at 11:40?AM roman fox via <romanfox68=[email protected]> wrote:
ADDITIONAL information on the parameters of grinding wheels.?
Today I called a technician at TYROLIT and asked him about the questions I received from you, so the wheels are set for a maximum grinder speed of 11700 rpm - test runs are carried out at 20000 rpm, unfortunately when I first asked about grinding wheels I did not know the exact maximum grinder speed, today I gave this information to the technician and he told me that there is no problem to use a different bond when the wheel can have a safe speed of up to 14700 rpm, the wheel will be a little more expensive (I do not have the price yet) but I think it will not be more than 1 eu,
I also had a question from you about what material they are made of - the white wheel is marked 99BA corundum zirconium and the brown ones are 96A corundum modified with titanium, the wheels will grind material to a hardness of 55 HRC,
There was also a question here whether they also make cup wheels - not in these sizes but I will get an offer from the catalog, for now I found out that they have a cup wheel with dimensions of 50x50x13mm.?
As soon as I get a new price offer due to increased speed I will inform you.
Unfortunately so far I only have an offer for 9 grinding wheels I will keep about 6 of them so a total of 15 there are still 35 left.
Furthermore, the production process was 8 weeks, I asked for a shorter production date, but unfortunately it is not possible due to the complexity and specification of the production of grinding wheels.
So that is all I have found out about your questions for now.
