EDON Controls, Inc. offers a durable, fully adjustable, tilt disk positioner for use with disk painting systems.  It provides up to 45 degrees of positive, repeatable, angular positioning of the disk turbine assembly.  It is graduated in 1 degree increments thru 45 degrees.  The main feature is that angular adjustment occurs about the disk's centroidal axis, thus maintaining target distance.  It is available as a manual or automatic device.