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A LOCTITE® wearing compound, supplied through Motion, helped one gold mining operation dramatically extend wear life on a critical ball mill feed pipe – without welding, tiling, or specialist contractors.

Wear is a fact of life in mining. Any time rock and slurry change direction – through chutes, bins, elbows, and transfer points – surfaces are effectively ‘sandblasted’ by abrasive particles. Traditionally, sites have relied on hardened wear plates, ceramic tiles, or frequent patch repairs to protect vulnerable areas. The problem is that many of these fixes are labour-intensive, disruptive, or difficult to repeat consistently.

That was the situation for one Queensland gold processing operation, where an engineered elbow section on a ball mill feed pipe was wearing rapidly. “The ball mill feed pipe was copping a flogging from particle abrasion,” says Adam Schlatter, product manager – adhesives, sealants & chemicals at Motion. “Previous coatings were only lasting four to six weeks, which meant constant recoating, heaps of downtime, and blowing the maintenance budget.”

The challenge: frequent re-coating and an expensive alternative

The elbow feeding into the ball mill was not a standard off-the-shelf item. The mine’s maintenance manager said replacement would require fabrication and cost “tens of thousands” to manufacture and install – before factoring in downtime.

The site had trialled other wearing compounds without success and eventually brought in a contractor-applied silicon carbide-based epoxy system that required specialist application. It lasted longer, but it was very costly and logistically difficult to repeat. “They were looking for a cheaper way to achieve the same result,” says Henkel’s Hoelzl…
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