In the drag finishing process, the components are clamped in specially designed holders. These holders are dragged in a circular motion through a process drum containing grinding or polishing granulate. This high-speed motion generates high contact pressure between the workpiece and the media, which in a very short time produces perfect results in the form of high-precision edge rounding, smoothing or a mirror finish in a quality equivalent to that obtained by manual polishing.
Drag Finishing is appropriate for use with delicate workpieces like jewellery, dental implants, forming dies and cutting tools. The particular advantage of this technique is the short time required to get a very good finish, without damage to the workpieces.
Custom-designed workpiece holders make a significant contribution to the perfect processing results obtained by the DF series. They also ensure that the workpieces are mounted as quickly and efficiently as possible and considerably simplify batch processing. In recent years, OTEC has designed over 100 different types of holder. Furthermore, the process container features a water cooling system which keeps the polishing granulate at a constantly low temperature. This considerably extends the life of the process medium and ensures constant process quality, even at consistently high processing speeds.
- Absolute reliability Consistent use of only the best materials and components ensures trouble-free operation and long service life.
- Maximum cost-effectiveness comparatively low capital investment coupled with the potential for very high cost savings in terms of processing times make the DF series an extremely cost-effective solution.
- Perfect finishing results Deburring, grinding or high-lustre finish in a quality otherwise only obtained through hand polishing.
- Short processing times In many cases, perfect surfaces can be obtained in just a few minutes.
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