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About Gem City Metal Technologies, LLC

In June 2018 Hydram Engineering Ltd. became part of the Dynamic Aerospace and Defense group.

Dynamic Aerospace and Defense is a privately-owned business with its main headquarters in Michigan, USA. Hydram is Dynamic’s first acquisition outside the US, joining Dynamic’s existing portfolio of companies based in the mid-west and having an established reputation, specialising in supplying precision metal components for the aerospace, defence, automotive and rail sectors.

Gem City Metal Technologies

Multi axis laser

Located in Dayton, Ohio, Gem City Metal Technologies is recognised as a leader in close tolerance hand spinning. As a premier metal forming company, Gem City has expanded its capabilities to also include automatic and CNC metal spinning, laser cutting, high pressure hydroforming, and metal stamping and punching. The company's in-house tool & die design and build capabilities reduce lead times and alter tooling as required for exceptional service and JIT shipments.

Metal Spun Nose Cones


  • Hand and CNC Spinning
  • Laser Cutting
  • Hydroforming 
  • Metal Stamping 
  • Tool Design & Build 
  • Machining 
  • Welding 
  • Aluminum Heat Treating

Metal Spinning

Dynamic Aerospace And Defense - Markets And Products

  • Aero Engine Components
  • Aerospace Structures
  • Defence
  • Automotive
  • Heavy & Light Rail
  • Industrial & Commercial
Apprenticeship News Read all about it!  Hydram runs its own Apprenticeship Programme and you can find all their news here! Read More >
Apprentice Training Centre We opened our dedicated Apprentice Training Centre in 2011.  The Hydram training centre consists of two dedicated rooms for apprentice teaching and project work.  Find out what the facilities are like here Read More >