Our 12-Million-Cycle Welded Bellows Breakthrough

Welded bellows are known for their flexibility, hermetic sealing, and performance under extreme pressure and temperature conditions. However, achieving high cycle life—especially over 10 million strokes—is a demanding challenge, requiring precision in every aspect:

Material Selection: We used high-grade stainless steel optimized for fatigue resistance.

Advanced Welding Techniques: Edge-welded with ultra-fine control using laser and micro-TIG welding to ensure perfect seam quality and minimal heat-affected zones.

Design Optimization: Custom convolution geometry and thickness distribution were modeled and tested to minimize stress concentration.

Rigorous Testing: The bellows underwent accelerated life testing under full-stroke, high-frequency cycling to validate its 12-million-cycle lifespan.