Sheathing extrusion looks simple – pour plastic pellets in, heat and melt, extrude over the cable core, cool and set. But anyone who has actually run a production line knows it's far more complicat

A cable factory owner in Zhejiang, surnamed Chen, had been in the cable business for over a decade. Starting in the second half of last year, overseas orders suddenly surged – especially high-fiber-co

When cable factories buy equipment, their main concerns are price, accuracy, and delivery time. But few stop to consider – from blueprints to a fully operational machine, how many steps does an SZ str

There's a saying in the fiber optic cable industry: "Even a 0.1°C temperature deviation or a 0.01 mm dimensional error can affect the ultimate transmission speed and stability of the fiber." Anyone

In January 2026, Matt Rehder, Vice President of Core Networking at AWS, announced that AWS had successfully deployed hollow-core fiber to connect its 10 core data centers, marking the official commerc

Over the years in after-sales service, I've encountered all sorts of customers. But one incident stands out more than any other. I got a call from a customer in Southeast Asia – their sheathing lin

Most people in the cable industry are familiar with SZ stranding and cabling lines and sheathing extrusion lines – after all, they are the "star players" in cable stranding and sheathing. However, man

People who work with optical cables deal with stranding machines and sheathing lines every day. But few have ever stopped to think – how are these machines themselves made? An SZ stranding and cabl

The sheath is the cable's "armor." After the loose tubes are stranded into a core, an outer sheath must be applied to protect the optical fibers from moisture, compression, and tensile stress. The she