{ "@context": "https://schema.org", "@type": "WebPage", "headline": "97.6% Particle Reduction in 22 Hours: Recovering Condemned Gearbox Oil for a 2MW Wind Turbine", "description": "Recovering condemned 320 cSt synthetic gearbox oil to as good as new condition using Delta-Xero nano filtration.", "mainEntity": { "@type": "CreativeWork", "name": "2MW Wind Turbine Oil Recovery", "about": "Wind Turbine Gearbox Reliability", "author": { "@type": "Organization", "name": "Delta-Xero" } } }
Removing Metallic Debris and Varnish from Wind Turbines

Oil restored to “as good as new” condition

A 2MW wind turbine gearbox had its oil condemned for disposal after 10 years in service. The 320 cSt synthetic gearbox oil showed severe varnish formation, extremely high particle counts, and degraded cleanliness, making reuse impossible under normal maintenance standards. The oil was scheduled for disposal, with full replacement costs unavoidable.  

 book a call
Wind Turbine Gearbox Oil Restored to 'As Good As New'
case study

Oil restored to “as good as new” condition

The challenge 

A 2MW wind turbine gearbox had its oil condemned for disposal after 10 years in service. The 320 cSt synthetic gearbox oil showed severe varnish formation, extremely high particle counts, and degraded cleanliness, making reuse impossible under normal maintenance standards. The oil was scheduled for disposal, with full replacement costs unavoidable.  

Customer savings & impact 

Following controlled off-line filtration using Delta-Xero nano filtration, the results were verified through oil analysis and visual inspection: 

  • Up to 97.6% reduction in particles (≥14µm) within 22 hours of filtration 

  • Varnish potential reduced rapidly, with MPC results meeting minimum reuse standards in under 9 hours 

  • Oil restored to “as good as new” condition, confirmed by independent laboratory testing 

The full case study reveals how condemned oil was recovered, what the before-and-after MPC and ISO data showed, and why disposal was completely avoided.  

Access the full results 

Download the complete wind turbine gearbox oil recovery case study, including MPC images, ISO particle trends, and laboratory confirmation. 

Related Case Studies

Off-shore Oil and Gas: Case Study 2

The Additive Myth Debunked

A long-term independent study was carried out by POLARIS Laboratories Europe to assess whether installing Delta-Xero filtration on a landfill gas engine would negatively affect lubricant condition, additive performance, or expected oil drain intervals.

 View Case Study
99.98% Contamination Reduction | Biffa Case Study

Significant Financial Savings for Biffa

A Godswill baler, valued at approximately £500,000 and used for processing aluminium and cardboard, suffered five major breakdowns within just six months of installation. Despite being under warranty, the machine experienced two pump failures and three valve failures, resulting in £15,000 in direct repair costs and significant production downtime. Specialist oil analysis revealed that the heavily polluted waste-processing environment was introducing extreme levels of particulate and varnish-like products that conventional maintenance could not identify or remove. 

 View Case Study
contact us

Ready to transform your oil management?