MTI Wireless Case StudyRectifying Oven Fan Issues

A customer recently installed a new multi-stage industrial paint oven and sought to protect their investment from day one. To prevent unexpected downtime and maximize production uptime, they chose to implement wireless condition-based monitoring on the supply and exhaust fans.

While the system was newly installed and professionally commissioned, monitoring quickly revealed a critical performance issue that would have significantly shortened equipment life.

Challenge
  • Newly installed multi-stage paint oven
  • High-temperature exhaust and supply fans
  • Potential risk of early equipment degradation
  • No independent performance verification beyond startup
Monitoring Solution
  • Dual-axis wireless vibration sensors
  • Velocity, acceleration, and temperature measurements
  • Data transmitted every 10 minutes
  • Cloud-based trending and analysis platform

Implementation

A custom monitoring layout was designed to cover bearing locations on both the exhaust and supply fans, as well as associated motors. Sensors were magnetically mounted at each bearing location and configured to transmit data to the central controller.

The monitoring team verified consistent data transmission from all sensor points, ensuring accurate trending and early detection capability across critical components.

Findings & Operational Impact

Trending analysis revealed excessively high operating temperatures. Further investigation determined that the exhaust fans had been installed in the incorrect rotational direction.

Instead of removing hot air from the oven, the fans were recirculating heat back into the system — significantly accelerating wear and reducing expected equipment life.

  • Incorrect fan rotation identified through temperature trending
  • Manufacturer required to correct installation at their expense
  • Reduced long-term equipment degradation
  • Lowered energy consumption
  • Improved operational reliability and product quality

Because the issue was detected early, corrective action was taken before permanent damage occurred, preserving equipment integrity and protecting the customer’s investment.

Lessons Learned

This case demonstrates that even newly installed equipment can present operational risks. Continuous monitoring provides an independent layer of verification beyond commissioning.

Organizations implementing new capital equipment should consider monitoring from startup to ensure proper performance, validate installation, and mitigate early-life failures.

Conclusion

Wireless condition-based monitoring played a critical role in identifying a costly installation error within a newly commissioned paint oven system.

By enabling early detection and prompt correction, the solution helped prevent premature equipment failure, reduce energy waste, and ensure long-term operational efficiency.