Clays maximises printing uptime with Contiweb non-stop unwinder

Clays, a market-leading book production specialist, has installed a Contiweb CD-N non-stop unwinder. The system is expected to save more than 800 hours of uptime annually on the HP PageWide Web Press T260 Mono pressline at Clay’s Bungay, Suffolk site in the UK.

"We have a CD-N unwinder on one of our bigger HP presses already, so we’ve seen the benefits the system can bring, particularly to uptime,” explains Andrew Lawrence, Continuous Improvement, Technical and Project Manager at Clays. “The press runs 24/7 and approximately 10 percent of that time is spent changing paper reels. With the zero-speed splicing we don’t have to stop the printer to change the paper, so we can reclaim the majority of that time back. We’ll be saving somewhere in the region of 840 hours a year.”

Clays prints 150 million books every year, mainly for trade publishers, but also serving independent publishers and small start-up businesses. With the book market continuing to thrive, this number is only set to increase. Production capacity, speed, and reliability are consequently crucial to Clay’s business.

Clays purchased its first CD-N unwinder for a new HP PageWide T490HD web press in 2018. Seeing the productivity gains and waste reduction achieved, the decision was made to also retrofit an existing 26-inch HP PageWide Web Press T260 Mono pressline with the Contiweb CD-N unwinder, which was integrated in October this year. “Although the T260 is a smaller press, productivity is still critical,” Lawrence adds.

The Contiweb CD-N unwinder can splice a fresh reel of paper to an expiring reel without having to stop printing. Able to splice to papers of different web widths, coatings and weights, the system is very useful for short, fast-changing jobs. The unwinder can also send a signal to the press when a splice is coming – even if it recognizes a splice made by the paper mill – so that the press can lift the print heads, reducing waste and eradicating the complication of reprinting signatures made unusable by printing over a splice.

“We’re delighted to announce this milestone installation with Clays,” says Robert Bosman, Sales Director at Contiweb. “It affirms Contiweb’s position as not just a supplier for web offset printing equipment, but also for digital inkjet, an important move for the company. I’m also pleased to see Clays, such a huge player in book production, reaping the benefits of Contiweb technology.”

Contiweb has also launched a calculator for printers wishing to assess the time savings they could make with the Contiweb CD-N non-stop unwinder on their Canon, HP, Kodak, Ricoh, Screen and Xerox presses, which can be found on the Contiweb website. 

CAPITALISE ON YOUR PRESS SPEEDS

CD-N non-stop unwinder

Contiweb’s CD-N non-stop unwinder enables you to change paper reels during production, without having to stop printing. Click for more information.

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Contiweb CDN LP1
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