06 April 2021
Danish converting equipment manufacturer Grafisk Maskinfabrik has launched LR250, an entry-level label inspection rewinder, featuring a built-in missing label detection system.
The new label inspection rewinder offers a built-in sensor for missing label detection. For more demanding applications, such as pharmaceutical labels, the LR250 can be configured with a video camera for 100 percent advanced print inspection and verification.
‘The LR250 is a versatile machine with some innovative built-in features that will ensure all your rolls are delivered in top condition with all labels present and correct,’ said Uffe Nielsen, CEO of Grafisk Maskinfabrik. ‘We have developed the rewinder with different inspection options, so there is a version that suits every budget without compromising on quality.’
The LR250 can process label rolls up to 250 mm (9.8in) wide at a production speed of 200 m/min (656 ft/min). It comes with a two-way rewinding capability, integrated web guide, and a label counter as standard. The adjustable splice table features pneumatic splice clamps and can be fitted with a splice detector.
The missing label feature stops the machine upon detection, calculates the error position, and reverses the web until it is aligned with the splice table. Once the missing label has been replaced, the web is re-checked, and the rewinder completes the job at full speed.
The option to integrate a video camera upgrades the machine's capabilities to include a full print quality inspection. GM has partnered with BST-Eltromat and Nikka Research to offer 100 percent quality inspection for printed labels. The camera will be connected to an external system, which checks the print for faults and verifies it against the master PDF file.
The LR250 has further been developed with tension separation for working with thin, sensitive materials and PET liners. Thanks to the centrally placed nip roller, the web can be unwound with one tension and rewound with a different tension to avoid stretching the material. A capacitive sensor for clear-on-clear labels can further extend the range of materials that can be processed.
There is space for a full UV inkjet printer for coding and marking for customers requiring variable data. GM partnered with Domino, Markem-Imaje, and Rea Jet, but other manufacturers' systems can also be fitted on demand.
‘As fault-free label production has become the norm, our customers want machines that enable them to deliver perfect rolls of labels to their customers, every time,’ added Nielsen. ‘This little label inspection rewinder is the perfect solution for that, but don’t let the size fool you. We have built the LR250 with so many clever options that it can grow with our customers’ business and tackle a wide range of label requirements.’