Edge Welded Bellows
Hanovix edge-welded metal bellows deliver unmatched cycle life, absolute leak tightness, full-stroke flexibility, and flawless performance from cryogenic to extreme high-temperature conditions.
Size Range
Year
Thin metal is unforgiving. Weld flaws are fatal
In edge-welded bellows, a single microscopic crack or heat-affected zone can destroy hermetic sealing and cut cycle life from millions to mere thousands. Hanovix eliminates that risk with proprietary laser-welding sequences, active heat-sink control and 100 % in-process inspection — delivering perfectly consistent welds, absolute leak tightness to 1×10⁻⁹ and proven long-term reliability in every diaphragm pair we produce.
We turned the hardest process into a repeatable production line.
Hanovix edge-welded bellows are built on a perfectly coordinated workflow that runs like clockwork:
Highly systematic operator training and daily certification
Welding stations maintained to micron-level precision with full service logs
Custom fixturing sets designed and serviced in-house for zero deviation
Seamless hand-off between forming → welding → cleaning → 100 % helium leak test → final inspection
Every process step tracked in real-time, every operator cross-trained, every machine preventively calibrated
This disciplined, repeatable system is why we consistently deliver flawless weld quality, absolute hermetic sealing and million-cycle reliability — part after part, year after year, at lead times others can only promise.
Key Features of Hanovix Edge Welded Bellows
Stroke up to 90 % of free length – maximum flexibility in minimal space
Hermetic sealing proven to 1 × 10⁻⁹ std.cc/sec helium – absolute leak tightness
Operating temperature –420 °F to 1300 °F (–250 °C to 720 °C)
Highest cycle life in the industry – millions of full strokes without fatigue
All-welded metal construction – no elastomers, no outgassing, media-isolated
Diameters from 6 mm to 280 mm (up to 310 mm OD) – one of the widest standard ranges worldwide
Available in SUS316L, 304, 347, AM350, Inconel® 718, titanium, Hastelloy® and more
Cleanroom-manufactured & packaged – UHV / high-purity ready, optional RGA certificate
Custom end configurations & complete assemblies – flanges, tubes, manipulators, valves
Fast prototyping to full production – in-house tooling, systematic workflow and rigorous quality control
Bring us your toughest motion, sealing or vacuum challenge — Hanovix will deliver the perfect edge-welded solution, on time and without compromise.
All products manufactured in-house to the same rigorous Hanovix standards of precision, cleanliness and reliability.
