1. Construction & Custom Design
- Made from stamped diaphragms, welded at inner and outer edges via TIG, laser, or plasma welding to ensure hermetic integrity.
- Flangeless format reduces cost and material excess—ideal when you supply your own flanges.
- Optional reinforced end convolutions (outermost two) can be thicker for enhanced weld strength or uniform thickness across all convolutions.
2. Fully Customizable Specifications
Just tell us:
- Outer & Inner Diameter (OD/ID)
- Free Length (unloaded length)
- Compressed Length (fully compressed)
- Extended Length / Stroke
- End Convolution Thickness (reinforced or standard)
We calculate the required convolution count, spring rate, tolerances, and produce precisely to spec.
3. Performance & Capabilities
- Edge-welded design offers outstanding axial, lateral, and angular flexibility—axial stroke up to ~90% of free length.
- Provides hermetic, all-metal sealing with no need for gaskets—ideal for vacuum and high-pressure applications.
- Supports high-cycle fatigue, high/low temperature, and corrosive environments depending on material.
4. Material Options
Choose from a variety of alloys, including:
- Stainless steel (e.g., 316L, 347)
- Nickel alloys (Inconel®, Hastelloy®)
- Titanium, Monel®, AM350
Suitable for cleanroom, vacuum, cryogenic, chemical, and high-temperature environments. Single- or multi-ply
designs available, with optional heat-treatment to enhance performance.
5. Designed for High-Volume Production
- Optimized for repetitive manufacturing—ensuring cost-effectiveness and consistency.
- You handle flange welding in-house; we supply weld-ready components.
- Efficient replenishment workflow as usage grows.
Key Benefits
| Feature | Benefit |
|---|---|
| Flangeless Bellows | Less material wasted, smooth integration into your flange system |
| Reinforced End Convolutions | Easier welding, stronger weld zones |
| Fully Custom Dimensions | OD/ID, free/compressed/extended length tailored to spec |
| All-Metal Hermetic Seal | Leak-tight in vacuum, pressure, or chemical service |
| Flexible Materials & Ply Options | Versatile performance in diverse environments |
| Optimized for Volume Orders | Lower cost per unit, quick turnaround |
How to Order
Just send these details:
- Desired OD and ID
- Free length, compressed length, extended stroke
- End thickness preference (reinforced or standard)
- Material selection (optional—otherwise we’ll recommend based on environment)
We will provide you with:
- Convolution count, spring rate, and dimensional layout
- Estimated lead time and pricing
- A precision-made, weld-ready flangeless bellows built to your specifications
Summary
Our Flangeless Welded Metal Bellows—with optional reinforced ends, full dimensional flexibility,
and industrial-grade materials—deliver precisely what high-volume OEMs and fabricators need when integrating
their own flange assemblies. Share your specs, and we’ll make bespoke bellows for your process.