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DOWNSTREAM EQUIPMENT | MACHINERY


From reeling in finished product to checking its quality, downstream equipment ensures that extruded pipe and profile is properly handled once it has emerged from the die


Handling with care: latest in downstream equipment


Once pipe or profile has been extruded from the die, the task of checking its quality – and preparing it for onward delivery – begins. This ranges from determin- ing pipe diameter and surface quality through to coiling pipe onto reels or cutting it to size. Maillefer has developed a pipe reeler for


micro-ducts that offers an extension in product length. The KWD reeler for micro-ducts was previously limited to a 1000mm reel but is now available in a 1250mm version.


“Extrusion line performance and micro-duct tube lengths for blown fibre bundles continue to be the subject of improvements and innovative design,” said Philippe Giovangrandi, technical director at Maillefer. “We’ve given a boost of nearly 2/3 more in product length capacity at the reeling end of our micro-duct lines.” The KWD 1250 automatic dual reeler integrates to the end of Maillefer’s Micro-duct Pipe Extrusion Line, where it conditions micro-duct ranging in


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diameters of 3.5 to 16 mm. The larger machine can handle full reels from 650 to 1250mm, weighing up to 300kg. A 67% potential increase in volume leaves more lay room for product, says the company. Finished reels with longer lengths become an advantage in the next operation: assembly and sheathing.


Individual micro-ducts can be brought together to be bundled and jacketed into a principal duct. A bundle can count up to 24 micro-ducts and measure a total outer diameter of up to 63mm. By having longer micro-ducts available – from each reel that feeds assembly and sheathing – a longer bundle can be produced in one go before requir- ing a new joint or junction. For longer lengths, Maillefer offers an alternative


that uses barrels rather than a reeler. Its automatic barrel packer is suited for getting more length at high speeds into octagon barrels. It offers several cost-related advantages – including a shorter time to produce bundles thanks to fewer interruptions in


September 2021 | PIPE & PROFILE EXTRUSION 13


Main image: Maillefer says its KWD 1250 reeler can handle longer lengths of micro-ducting


IMAGE: SHUTTERSTOCK


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