MACHINERY | WINDERS
Wide versus narrow
Ashe Converting Equipment recently posted a guide to explain the differences between narrow-web and wide-web slitter-rewinders. The main difference is the width of the material they are designed to handle. Wide-web models typically process materials that are 50in (or wider) in width – and are typically used in industries that require large-scale production such as packaging. Narrow-web models are optimised for materials narrower than 50in. These are popular in sectors such as labelling, where precision and customisation are critical.
Speed and volume. Wide-web slitter-rewinders often feature advanced automation and higher cutting speeds to maximise throughput. They are designed to maintain high levels of accuracy at these high speeds. Narrow-web models are normally built for precision rather than speed. They are used in industries where the quality of the cut and machine versatility are more important than sheer volume. Adaptability. Narrow-web slitters are known for their versatility and can often be more easily configured – so are good for smaller, specialised runs. This allows manufacturers to switch easily between different materials and cutting specifications. Wide-web machines are less flexible but offer more stability and consistency for large-scale runs. Wide-web industries. In packaging, high-volume production requires wide-web models as they can handle the large roll widths and diameters. In nonwovens for medical or hygiene products, consistency and scale are essential, which wide-web slitter-rewind- ers can handle efficiently. In agricultural films – from greenhouse covers to mulch films – these materials often come in large rolls that are best handled at volume. Narrow-web industries. A prime use of narrow-web slitter-rewind- ers is in the labelling industry. The machines are ideal for cutting label materials into precise widths. In the medical and pharma, precision and quality are critical – and narrow-web models are used to cut specialised films, foils and laminates used in medical devices, pharma packaging and sterilisation products. In automo- tive applications such as gaskets and seals, narrow-web models precisely cut materials to the exact specifications required, according to Ashe.
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through increased services,” said Atlas. Services include: supporting customer material development, be determining how best to process materials through a slitter rewinder; a training academy to help operators learn ‘best practice’ and boost productivity; and ‘trying before buying’ – to show product advantages. The centre covers nearly 4,000 sq ft and offers both duplex and turret slitter rewinders from the TitanSlitter and ConSlitter series. “To meet the expected increase in demand – and to address supply chain issues – we have also invested in ‘pre-configured machines’ that allow exceptional delivery times in our TitanSlitter range,” said the company.
Web handling Webex, part of Maxcess, says its Electric HTR roller helps manufacturers achieve precise process control and efficiency in web handling. The product offers an even heat profile end-to-
end, ensuring consistent temperature distribution across the entire roll face – which is essential for high-quality production, says Webex. In addition, it has multiple heating zones and can accommodate various web widths – allowing manufacturers to optimise their processes. It achieves process temperatures of up to 850F in around an hour, which reduces downtime and improves overall productivity. Other benefits include integrated zone tempera-
ture control, compatibility with existing controllers and reduced maintenance. “This represents a major advance in the web handling industry,” said Jason Annes, global product manager at Maxcess. In addition, Maxcess has signed a preferred
partner relationship with Valley Grinding, a supplier of industrial knives and cutting blades. They organi- sations plan to use their technical expertise to educate customers on best slitting practice and provide ways to improve productivity.
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