Providing Critical Components

From industrial processing plants to nuclear power plants, Senior Metal Bellows provides critical components to keep our customers’ up and running. Bellows vacuum pumps and compressors provide 24/7 radiation monitoring, ambient air sampling and gas handling.  Welded metal bellows provide flexible, dynamic seals capable of operating in extreme environments while providing zero leakage operation and high cycle life. Senior Metal Bellows provides custom designs to meet your specific requirements.


We develop new products (and reimagine conventional ones) for semiconductor manufacturing processes, including assemblies and components for precision actuation. Our PRIME MOVER actuator was the first to combine actuation and sealing into a single integrated device. We design for extremes of temperature, pressure, and corrosive environments—especially when high lifecycle, zero leakage, maintenance-free operation, and high performance are essential. Our process is fast and efficient, with full in-house resources, including: 3D solid modeling (rapid proof-of-concept), finite-element structural analysis, flow simulation and sizing—along with all required qualification and documentation to meet global manufacturing standards.

Fabrication & Testing

We bring our innovative designs to life in an advanced manufacturing facility where state-of-the-industry processes are executed under the highest standards. Seasoned technicians supervise advanced fabrication in:

  • Metal joining & forming with vacuum furnaces, and hydraulic presses to 1200-ton strength
  • Precision welding including methods such as TIG, laser, and electron-beam
  • Metal finish & metallurgy, with two automated cleaning lines featuring advanced cleaning, passivation and etching capabilities
  • Functional testing, including extreme environmental chambers, spring, tensile, and acceptance testing. Performance validation for all parameters.