The four-unit press will be delivered to the magazine printer's purpose-built 4,000sqm facility in November 2006, with commissioning planned for early 2007.
The order is a coup for MAN Roland, as Warners' two previous press installations were Goss M600 webs at its existing base in Bourne.
Work on the new factory, which will sit alongside the existing building, is currently under way.
The facility will have space for a second web press, although plans for a second machine are not yet clear.
Norman Revill, MAN Roland GB web division director, described the Warners order as "fantastic".
"Warners analysed the marketplace and chose MAN Roland for our service and support infrastructure and the technology," he said.
The new single-web press will feature four units and be capable of printing at up to 35,000cph for a 32pp section or 70,000cph for a 16pp section, with delta and double parallel folds.
"Until now the business has revolved around 16pp sections, so this virtually doubles Warners' capacity," said MAN Roland GB commercial web sales manager John Ellis.
At the project's outset last year, Warners managing director Philip Warner said that he hoped the new factory would help lift the short-run magazine printer's current 27m turnover to around 40m.
He said that investment in the new facility, which could top 10m, was a response to the existing factory being "chock-a-block".
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