//Metal Bellows

Metal Bellows

Custom Metal Bellows & AssembliesMetal Bellows products are used in a wide variety of industrial applications, and are designed to compress, extend, or bend in order to absorb axial and angular movement. The manner of construction, thickness of the walls, and the materials used all work together to supply the right amount of flexibility for your needs. Our Servometer (in New Jersey) and BellowsTech (in Florida) locations offer their expertise in engineering and design assistance to provide the metal bellows that will perfectly support your application.

Types of Metal Bellows

Edge-Welded Metal Bellows

Manufactured using sheets of metal that are hydraulically stamped into the shape of the diaphragm and then welded together, ID to ID then OD to OD, to your specified length using plasma, laser, arc, or electron beam welding equipment to make the flexible bellows. End plates, flanges, or other required hardware are then added to each end.

Using edge-welded metal bellows instead of rubber seals and hydroformed bellows in your application provides a higher level of precision, added durability, better performance, and a reduced risk of catastrophic failure in critical applications.

Edge-Welded Metal Bellows from MW Industries

BellowsTech uses a proprietary welding process that is proven longer lasting & more durable than traditional methods. In-house machining & tooling enables them to react quickly for fast prototyping and quick turnarounds of full production runs. They also offer assembly refurbishment services, replacing damaged bellows in expensive assemblies while re-using the machined components.

Electrodeposited Metal Bellows

Manufactured using a tightly controlled, 5-step electroforming process that begins with a solid aluminum stock that is machined to an internal geometry to create a mandrel. A layer of metal is then electrodeposited to a precise thickness onto the mandrel, the ends are trimmed, and the mandrel is chemically dissolved, leaving behind the finished part.

Electroformed bellows are the optimum solution for critical applications that demand complex geometries, seamless construction, leak tightness, and miniature sizes. These precision engineered components deliver performance, durability, repeatability, and dependability that other alternatives cannot.

Electrodeposited Metal Bellows from MW Industries

Servometer utilizes a signature Cobalt-Nickel alloy, FlexNickel, that is able to meet the temperature capability and structural rigidity of metal yet retain the flexibility and weight of plastic components. FlexNickel can be used with other surface finishes, such as copper, gold, & silver.

MWI Production Capabilities


Edge-Welded Metal Bellows

  • OD: 0.358″ (9.09mm) to 26″ (660mm)
  • ID: 0.125″ (3.175mm) to 23.2″ (648mm)

Electrodeposited Metal Bellows

  • OD: 0.020″ (0.5mm) to 11″ (279mm)
  • Max Convolution Length: 12″ (304mm)
  • Min Wall Thickness: 0.0002″ (0.005mm)
  • Stroke: 35% to 60%
  • Temperature Range
    • FlexNickel Bellows: -423° to 350°F (-253° to 177°C)
    • Static Electroforms: -423° to 1000°F (-253° to 534°C)


Edge-Welded Metal Bellows

  • AM350
  • Stainless Steel (316L, 304L, 347)
  • Inconel® (625, 718)
  • Hastelloy® (276C / Haynes 242)
  • Titanium (Grades 1-4)
  • ASTM-B265

Electrodeposited Metal Bellows

  • FlexNickel
  • Copper
  • Gold
  • Silver


Edge-Welded Bellows

  • Assembly
  • Specialty Welding
  • Engraving
  • Helium Leak Testing to 1×10-9
  • Post Weld Proof Pressure Testing

Electrodeposited Bellows

  • Assembly
    • Soldering
    • Electron Beam Welding
    • Torchless Brazing
    • Adhesive Bonding
  • Machining
  • Sub-component Supply
  • Engraving
  • Helium Leak Testing to 1×10-9
  • Post Assembly Performance Testing



  • Accumulators
  • Actuators
  • Aneroids
  • Beamlines
  • Electrical Spring Contacts
  • Expansion Joints
  • Face Seals
  • Feedthroughs
  • Mechanical Seals
  • Misalignment Joints
  • Pressure Responsive Devices
  • Pressure Switches & Transducers
  • Pulse Suppression
  • Pumps
  • Reservoirs
  • Temperature Sensors & Transducers
  • Thermal Expansion Tanks
  • Valve Seals
  • Vertical Lift
  • Volume Compensators
  • XYZ Manipulators
Precision Metal Bellows & Assemblies
For More Information on Metal Bellows:
Contact Us
Request A Quote

P: 386.615.7530
F: 386.615.7973 (orders and quotes)
W: www.bellowstech.com


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