Kuka robot arm milling help

[maro12]

Hi ,i would like to buy used kuka robot arm that will be used for milling granite and marble stone ,like kitchen countertops ,and have a few questions if you can help please . is kuka kr210 good enough with krc2 controller ED05 ? what kind of spindle motor will be ok ?is krc4 so much better ?is atc 9kw enough for milling and is powermill cam software enough by itself ,thank you very much !!

[Johannes @ Robots in Architecture]

Hello,

Sorry, I cannot give you a highly technical reply as I haven't worked directly with those materials much. I've seen a company use KR500 robots with >30kW milling spindles, but a KR210 would probably also work, just slower. 9kW seem not very much to me, but I would check with the spindle manufacturer. For them it doesn't matter if the spindle is mounted to a CNC machine or robotic arm.
If you only want to do milling, get a milling software like PowerMill (with PowerRobot), SprutCAM, etc.

Best,
Johannes