Why we do it....

HARD-FACING

The reason to apply Hard-Facing to parts that operate
under abrasive conditions is, of course, to make them
last much longer than the original part.

• Rebuilding with weld overlay or "hard-facing" the components subject to high abrasion type wear had been a common practice in other industries; e.g. mining, but had not been applied to utility type pulverizer components. The change from replacing to rebuilding was driven by a lower cost for rebuilding and longer wear-life for the rebuilt Grinding Rolls compared to new Grinding Rolls.
• It is very cost-effective to hard-face a rock crusher liner at a cost less than that of a new liner and our process will make this type of liner last two to three times as long on liners the size of AC500s and 50% to 100% on larger liners and Gyratorys.

Your bottom line will benefit from everything we do.

...about using our Clad-Tech™ C300TC Tungsten Carbide Matrix on pulverizer Grinding Rolls and Bull Ring Segments - more than double the wear life!

Our Clad-Tech™ C300TC is a patented resurfacing weld overlay process that utilizes a special matrix of tungsten carbide and weld overlay material applied to the high-wear areas of Grinding Rolls for vertical spindle mill coal pulverizers. The Cladding Technology "Clad-Tech™" process starts out similar to the standard hard-facing overlay processes performed by other suppliers. Worn Grinding Rolls are rebuilt to the original OEM's dimensions using our Clad-Tech™ C100S wire for the weld overlay. After the roll is rebuilt, a series of concentric grooves are cut into the roll surface in the high-wear areas of the roll's grinding surface. The grooves are then filled with a matrix that consists of a combination of a special weld overlay material and tungsten carbide chips. This same matrix can also be applied to Pulverizer Bull Ring Segments.

Westar Energy -- Jeffrey Energy Center
Clad-Tech™ Rolls vs. Competitors Rolls

Clad-Tech™ Roll                             with 588,714 Tons

Competitions Roll     with 588,714 Tons

...about using our Clad-Tech™ C100S and Clad-Tech™ C200S less wear resistant weld overlay on pulverizer Grinding Rolls!

For less abrasive coals, the expense of our CLAD-TECH™ C300TC patented Tungsten Carbide Matrix overlay may not be justified.  We offer two other overlay products for these applications – CLAD-TECH™ C100S and C200S.