The five-colour plus coater press arrived at the Maidenhead-based commercial print and packaging company in June and was followed by the SBL STS-1050 last month.
Flowprint's new machines join an SBL TS-550Wn gluer installed last year and a 12-station Herzog and Heymann minifolder and foil blocking equipment.
Managing director Alan Lacey said the investment was the result of his decision five years ago to branch out from commercial print into folding carton production, an industry he last experienced as an apprentice.
Commenting on Flowprint's new focus, Lacey, who started the company in 1990 as a mini-leaflet producer before branching out into greetings cards, said bluntly: "I don’t see a future in commercial print."
He hopes that folding cartons will comprise 60% of his trade over the next year, but added that output is not far off that currently.
The 20-staff company has come a long way since it was flooded by 16 inches of water and sewage five years ago and has now reached a turnover of £1.7m.
Lacey created a new head of operations role to bring Andrew Watts onto the team, who also has experience in folding carton market. "We brought on Andrew’s expertise and knowledge so that I can concentrate more on sales and we can grow the business even further," he added.