Abstract: Apparatus for inductively heating a non-rotating workpiece includes a rotatable spindle of insulating material having a split-ring secondary mounted thereon for rotation therewith and which secondary has opposite ends electrically connected in series with the opposite ends of a multiple turn inductor coil. A primary winding in the form of a split-ring is supported in fixed coaxial relationship with respect to the spindle and the secondary ring thereon, and opposite ends of the primary ring are connected across a source of high frequency alternating current. The apparatus is mounted on a slide for displacement toward and away from a workpiece to selectively position the inductor in magnetically coupled relationship with the workpiece, whereby the workpiece is inductively heated in response to rotation of the spindle and energization of the primary ring.