like the larger medve tm series, the rokas spindle moves around the work piece at speeds of up to 800 inches per minute with a spindle speed of 3000 rpm. other similar types of vertical gantry milling centers will offer ......like the larger medve tm series, the rokas spindle moves around the work piece at speeds of up to 800 inches per minute with a spindle speed of 3000 rpm. other similar types of vertical gantry milling centers will offer maximum load ratings on their table, but with the roka, 30,000 plus lbs. can easily be accomodated. cast iron construction for rigidity and finite element analyzed for optimum casting performance.