MTI RM-2 FSW machine was designed for stiffness and spindle characteristics specifically for the FSW of steels.  It includes a full data acquisition and display capability.Includes servo-controlled axes and a variable frequency drive on the spindle, with the speed range of up to 1800 r/min and the motor torque of up to 550 N m. Used with polycrystalline cubic boron nitride (PCBN) tools.