Seal reliability is a critical component of OEM credibility. A leading construction equipment OEM faced escalating warranty claims from customers citing hydraulic seal failures in earthmoving machinery. With equipment deployed in high-impact sites, fluid leaks and cylinder breakdowns became a pressing issue.

Background & Challenges

The machinery operated in quarry and demolition zones with high pressure spikes, debris, and shock loads. The legacy seal setup failed to withstand these conditions, prompting customer complaints and revenue loss from service coverage.

COMBI Collaboration

COMBI engineers partnered with the OEM’s R&D department to develop a seal variant with adaptive lip geometries and energy-dissipating inserts. Field trials included exposure to impact loading, sub-zero startup, and pressure cycling.

Proven Benefits

The upgraded seals delivered 18 months of uninterrupted service in test fleets. Leakage dropped to near zero, and internal testing confirmed 40% longer seal life. The OEM rolled out the solution across product lines, citing a 60% reduction in seal-related warranty costs.

OEM Perspective

Their technical director shared: “With COMBI’s engineering support, we not only solved a problem—we upgraded our reputation. Fewer claims, better field feedback, and more confidence in our brand.”

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SEO Description: Explore how COMBI partnered with an OEM to resolve hydraulic failures in earthmoving machinery, cutting warranty claims by 60% and extending field reliability by over a year.