Hello liuchen... Welcome to this great forum ...
It's good to have a manufacturer around, there are occasional questions about magnetic clutches that come up every now and then... you will be perfect to help with some answers...
There are a few questions I have about incorporating an easy removal into the design of electric clutches... but I will email my thoughts on this to your eMail address ... :smile:KennyV
Welcome aboard to a great site that i think you will have a lot of good information about electric clutches . Just wondering way we went to electric clutches? I have mowers with booth the old belt clutch and electric clutch didn't really notice any difference in them.