The Tracing spindle series FN12 are used for rounding or chamfering edges of workpieces. They are scanning the lower side of the workpiece and work with a spring suspended stroke of 10 mm in vertical direction. Unevenness in the material can be equalized thereby. The sensing device is made with adjustable sliders on the workpiece surface and conforms to the tolerances due to a spring suspended stroke. As a result the processing is always in the same distance to the surface of the workpiece.
For different materials, it is necessary to adjust the tracing force. This can easily be changed steplessly with an adjustment screw by the user. Depending on surface characteristics of the workpiece either sliding pieces of polyamide or hard chrome plated steel can be used. The maximum speed is 18,000 1/min.