Logo: Senior Aerospace Metal BellowsSenior Aerospace Metal Bellows

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Company Overview

Senior plc is an international manufacturing group with operations in 11 countries. Senior designs, manufactures and markets high technology components and systems for the principal original equipment producers in the worldwide civil aerospace, defense, diesel engine, exhaust system and energy markets. The company is split into two business units, Senior Aerospace and Senior Flexonics. The predominant market for Aerospace is the Military and Commercial aerospace sectors while Senior Flexonics concentrates on Automotive and Industrial businesses.


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The 14 Aerospace companies have provided engineered solutions for the rigorous challenges of bleed air duct systems, precision sheet metal fabrications, bellows, metal hose assemblies, and other pressure carrying components that are flying in virtually all military and commercial aircraft, numerous piston and jet engines, and are specified for missile and NASA programs.

As one of the 14 Aerospace Divisions, Senior Aerospace Metal Bellows was founded on a breakthrough process for creating welded diaphragm metal bellows and has
been in the Manufacturing industry for over 50 years. The company was established in 1955 and became a Senior Aerospace company in 1994. Metal Bellows continues to refine and develop welded metal bellows technology and the integration of welded metal bellows into critical aerospace, semiconductor, medical, and industrial applications. The company operates in a 65,000 square foot manufacturing facility in Sharon, Massachusetts. This is a vertically integrated plant incorporating all aspects of metal fabricating and joining as well as electromechanical fabrication and assembly. All metal joining processes are maintained in the facility with particular attention to our core competency, fusion welding technologies. This allows us to completely control the quality of the innovative solutions we offer our clients. We currently manufacture products across many different markets on both new and legacy programs. Metal Bellows is continuously developing, designing, engineering and manufacturing products to meet our customer’s needs.

Lean Manufacturing

Our approach shortens time to market and reduces costs.

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Our Green Commitment

More than good policy it’s good business.

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