Maintaining consistent performance in fin fan systems is critical for power generation facilities, especially in high-heat environments where reliability directly impacts uptime and operating costs.
At a Vistra Corp power generation facility in Texas, ongoing issues with belt performance created a growing maintenance burden across approximately 50 fin fan units. The operation relied on Poly Chain® GT™ Carbon™ belts that required frequent re-tensioning, leading to increased labor demands, downtime, and inefficiencies.
The Challenge
The facility faced several persistent challenges:
- High-heat operating conditions
- Constant re-tensioning requirements
- Ongoing maintenance demands
- Increased downtime and labor costs
With dozens of systems in operation, even routine adjustments became time-consuming and costly.
The Solution
MBL (USA) Corporation introduced the Mitsuboshi GigaTorque GX™ timing belt as a direct replacement solution. To validate performance, the facility conducted a structured two-year side-by-side evaluation under real operating conditions.
The test included:
- A direct comparison between GigaTorque GX™ and the incumbent belt
- Two sets of fin fans running simultaneously
- 30 belts evaluated per manufacturer
Designed for optimal power transmission, GigaTorque GX™ combines high-tensile carbon fiber cords, an H-NBR rubber compound, and specially treated nylon tooth fabric. This construction supports high-temperature resistance, durability, and consistent performance.
The Results
The results were clear and measurable.
By eliminating the need for routine re-tensioning, the facility significantly reduced maintenance activity across all fin fan systems. Over the two-year trial, GigaTorque GX™ demonstrated consistent performance in high-heat conditions and outperformed the existing solution.
Key outcomes included:
- Elimination of routine re-tensioning
- Reduced maintenance labor
- Lower replacement frequency and costs
- Proven performance through a two-year evaluation
Following the trial, the facility transitioned fully to GigaTorque GX™, replacing belts across all 50 fin fan units.
The Impact
By switching to GigaTorque GX™, the facility improved reliability, reduced maintenance demands, and positioned the solution for expansion across additional sites.
This case highlights how a precision-engineered power transmission solution can deliver measurable improvements in efficiency, uptime, and long-term cost control.
View the full case study here.
