GKN Aerospace, based in the United Kingdom, plans an additive-production line in Newington, Connecticut, United States. Manufacturing Dive reported on 12 September 2025 that the expansion would bring component fabrication and final machining together.
Engine programmes served
- The fan-case mount ring supports Pratt & Whitney GTF engines.
- These power Airbus A220 and Embraer E195-E2 aircraft.
Connecticut funding and timetable
Paul Schott's 3 September CT Insider report recorded a $2.5 million state grant. GKN was the second recipient under the $25 million Strategic Supply Chain Initiative. Company officials expected Newington additive operations in 2027 and about 20 additional employees, bringing that plant's workforce to roughly 170.
The report described an approximately 120,000-square-foot facility. Officials attributed the relocation principally to efficiency goals. They said the Trollhättan plant would remain open for other work. The initiative offers grants of $500,000 to $5 million for projects increasing production capacity within Connecticut.
Progress before the US expansion
In its 17 June 2025 announcement, GKN reported around 30 rings monthly at Trollhättan in Sweden, targeting 40 by year-end. The company had delivered its 200th additive core structure to Newington for machining earlier that year. Full-rate production across the ring programme was a separate end-2025 milestone.
GKN reported approximately 40% less material waste per part and forecast savings exceeding 70%, with end-to-end lead times potentially falling from nine months to four weeks. It described a $50 million global additive-capability investment in 2024.
The Swedish production investment
A 10 January 2024 announcement separately specified a £50 million investment, equivalent to 600 million kronor, for a Trollhättan centre of excellence. The Swedish Energy Agency's Industriklivet initiative would contribute £12 million, or 152 million kronor. The project envisaged around 150 positions for operators, technicians and engineers.
GKN explained that conventional castings and forgings can lose up to 80% of their material during machining. Its additive method instead builds successive layers from metal wire or powder fused by lasers. The announcement scheduled the Swedish facility's operation for later in 2024.
Earlier development of larger structures
On 21 June 2023, GKN announced commissioning of Cell 3 at its Texas Global Technology Center. This pre-production equipment used laser metal deposition with wire for titanium aircraft structures. Its stated development capability extended to five-metre components, following a 2.5-metre structure developed in Cell 2 and unveiled in 2022.
The equipment specifications included a 20-kilowatt laser, up to ten axes of movement and a maximum substrate measuring 5.6 by 2.5 metres. An inert working environment and two-sided or rotary deposition were also listed. The company identified process improvement, simulation, inspection and monitoring among directions for future large-structure collaborations.
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