Goss has introduced a new JF-65 SQF high-speed single-chopper commercial web folder it says will provide enhanced control of signatures on its M-600 presses. The combination folder with one rotary chopper or quarter-fold is capable of speeds up to 65,000 cph with a single stream delivery for magazine and tabloid products. Product management director Jean-Claude Pautrat says previously high speeds were only possible by sending consecutive copies through an upper and lower chopper. “Now, through a combination of technology innovations including a new tape transport system with copy control devices, optimised chopper balancing, vacuum slow-down, enhanced guides and optimised delivery, we have been able to eliminate one chopper for a streamlined and more efficient folding operation,” he says. With just one chopper (or quarterfold) to adjust, the new Goss folder ensures that fold precision consistency is extremely accurate from the first copy to the last. Eliminating the necessity for two choppers additionally means less setting, easier access and less maintenance, maximising the functionality of the M-600 press. Additional features include a web severing device, motorised on-the-run depth and lateral adjustment of the perforation, and circumferential phasing and fold lap adjustment. A three-part jaw folding cylinder accommodates various paper stock thicknesses. Greater production flexibility is provided by the automatic product changeover capability that enables the fold to be changed in less than two minutes. “By eliminating the second chopper we have simplified the folding process and increased production efficiency through a combination of built-in quality control and user-friendly features,” says Pautrat. gx