WireCo Targets Fatigue with Synthetic Pendants

WireCo is highlighting the role of vibration and shock transfer in accelerating structural fatigue in mining equipment, with its UNION Gladiator synthetic pendants designed to reduce these forces.

As mining operations push equipment to higher output levels, dynamic loads generated during digging place increasing stress on machines such as draglines and electric rope shovels. Shock loads travel through the boom into key structural components, creating repeated stress cycles that can lead to fatigue, particularly at welds and high-stress areas.

WireCo’s synthetic pendants act as a damping element within this load path, absorbing and dissipating energy before it spreads through the structure. This helps reduce peak loads and improve stress distribution, limiting the risk of cracking and premature failure.

In testing on an electric rope shovel, the solution reduced harmonic energy by 13% and sideloading stress by around 29%, contributing to an average 14% increase in component life.

“Vibration doesn’t always get the attention it deserves, but it’s a major driver of long-term structural damage,” said Brent Dein, Technical Services Engineering Manager at WireCo. “If you can control how that energy moves through the machine, you can reduce fatigue and keep equipment running more consistently.”

Lower vibration levels can also improve operator comfort and support compliance with safety guidelines from organisations such as Occupational Safety and Health Administration.

While synthetic pendants involve higher upfront costs than steel alternatives, they are designed to last for the life of the machine, reducing maintenance and downtime, an increasingly important factor for high-value mining operations.