The before and after pictures of the 18” Morgan Koch intermediate wire drawing block represent a significant advancement in the reduction of costs associated with the hard surfacing and maintenance of all wire drawing blocks. 

In the before picture (right), the block has a .040” deep groove at the draw line which causes marking, overlapping, and occasionally wire breaks.  The block had been previously hard surfaced with our PK-700, a tungsten carbide – HVOF spray coating, deposited to finished thickness of .080”.  Past procedure would be to re-grind the block with the correct taper until the .040” deep groove disappeared.

With the new “Restore and Grind” process, after an initial hard surfacing a block can yield as many as 7 re-grinds   - as long lasting as the original surface  - at a fraction of the initial cost.  Thus, greatly reducing long -term maintenance costs.  “Restore and Grind” can be done with most of our existing hard coatings including:  PK-750, PK-700, PK-920, PK-200, PK-503 and PK-400.  in addition, our most wear resistant alloy for wire drawing blocks PK-750 can be substituted for the original hard surfacing, thereby further increasing the wear life of the original hardsurfacing for each re-grind.