WebCatcher WebCatcher - Baldwin Technology Company, Inc.

Web Security SystemsWebCatcherActive protection againstwrap-ups and reducing down-timeto a minimumAdvantagesIn Practice• Fastest web break detection• Protects the printing units againstdamage• Active protection against wrap-upsEconomical• Analysis of paper failures• Reduced machine downtimes to aminimumWebCatcher S18 with web break sensor• Short return-on-investment (ROI)High-speed web break sensors provide protection against wrap-upsThe WebCatcher – Baldwin’s automatic web catching device – is a press protection systemthat reliably eliminates the dreaded wrap-ups after a web break. Thanks to the WebCatcher,downtime can now be reduced to a minimum. The WebCatcher, a fully integrated automaticweb catching system from Baldwin, is designed for all popular web offset pressesoperating at web speeds up to 18 m/s (only S18). It can be retrofitted in existing printinglines without any problems. The WebCatcher is distinguished by a very small footprint. It isinstalled between the last printing unit and the heatset dryer.The WebCatcher is a fully integrated system. A built-in sensor monitors the web continuouslyduring the printing process. It senses web breaks and instantly activates the webcatching system. If a web break occurs, the WebCatcher pulls the broken web from thelast printing unit before it has a chance to wrap around the cylinders and guides it to thefloor in front of the dryer. Costly, unproductive downtime – which can amount to anythingbetween half an hour and two and a half hours following a web break – is restricted to anabsolute minimum, and the press can resume production after only a very short delay.Ecological• Saving of blankets

Web Security SystemsWebCatcherTechnical DescriptionWeb break sensorThe heart of this system, an DSA-2 sensor, is apatented, specially developed device that guaranteestotal reliability. To compensate changesin the web width or movement of the web edge,two laser beams sense the edges continuouslyand actively adjust the position of the web breaksensor. By making sure that the sensor positionis always ideal in relation to the edge of the web,they facilitate a lightning reaction in an emergencysituation. Web breaks are detected beforeother web monitoring sensors have had a chanceto sense a web break between the last printingunit and the chill roller.Electronic controlThe control electronics form the link betweenthe sensor that detects the break and the mechanismthat prevents a wrap-up. They control thesequence of all necessary actions. The electroniccontrol components are clearly and logicallyarranged in a control cabinet. The WebCatcheris incredibly easy to use. No manual interventionis necessary during operation. Even after aweb break, only a few simple steps are needed torestart the press.Catching systemThe third element of the WebCatcher is thecatching system. It executes a technically preciseresponse to a diagnosed web break, therebycatching the web securely and protecting theprinting units. Since there is no mechanical connectionto the press, it can be retrofitted withoutdifficulty. This design also allows the upper webin a two-web configuration to be protected by asecond web catching system.DSA-2 sensor on the exit side of the web catchingsystemPneumatic muscleCatching roller and trolley bridgeService solutions• Easy retrofit possibility• Customized (ROI) calculation(Return-On-Investment)Options• DSWP (Dynamic Side WebProtection)• AAA (Automatic Air knifeAdjustment)• Remote maintenanceSpecifications• WebCatcher S14- up to 13 m/sec. line speed• WebCatcher S18- up to 18 m/sec. line speed• Web width up to 2.860 mmBALDWIN – Processautomation forprinting pressesContact us for:• Professional advice and support• Further product information• Return on investment calculation (ROI)PL-35-0561-Eng-0804BALDWIN is a registered trademark of Baldwin Technology Company. Inc.