Mitsubishi Heavy Industries (MHI) is installing a second autoclave to help Boeing boost its production of the Boeing 787s.
The specially designed autoclave, measuring 40m long and 8m wide, will be installed at MHI's fabrication factory in Nagoya, Japan, the firm said in a statement.
The autoclave cures and shapes composite materials and is "indispensable" in the production of the aircraft's mainly composite wings, it added.
"The addition of the second autoclave completes the structure required to increase production to the needed level," said the statement.
In response to Boeing's plans to speed up production of the 787s, MHI has installed more processing machines such as those used for water-jet cutting and composite-material layup.
Last month, the airframer said it will move from a production rate of two 787s per month to 2.5 per month, and will increase to a rate of 10 aircraft per month by 2013.
MHI, Fuji Heavy Industries and Kawasaki Heavy Industries collectively account for 35% of the 787 structure.