In modern society, optical cable communication network has become an indispensable and important part of modern communication field. In order to guarantee the stable operation and safety of the optical cable communication network, it is necessary to fix the optical cables in telecommunication duct to protect them from the damage of the external environment. These telecommunication ducts are generally made of high-strength materials, such as polyethylene, polypropylene, etc., with corrosion-resistant, abrasion-resistant, high-temperature-resistant and other characteristics. There are many types of them, which can be divided into PVC tube, Silicon coextrusion tube, fiberglass reinforced plastic tube and so on according to the material.
Silicon coextrusion tube
Compared with other materials of telecommunication duct, Silicon coextrusion tube has obvious advantages, and is currently the world's most advanced fiber optic cable sheath telecommunication duct. Silicon coextrusion tube is a new type of composite tube with silicone gel solid lubricant on the inner wall, the main raw material of the tube is high-density polyethylene (HDPE), and the core layer is the solid lubricant of silicon gel with the lowest friction coefficient. It has good sealing performance, chemical corrosion resistance, low engineering cost, and is widely used in optical cable communication network systems such as highways and railways. According to the use of the form it can be divided into single tube and bundle tube.
Corrugated Optical Duct
Corrugated Optical Duct (COD) consists of multiple internal micro-silicon core pipes and HDPE outer pipe as a whole. The outer pipe has single corrugated structure to improve the bending and compression resistance of the pipe.
Bundled micro duct
HDPE Telecommunication Duct Extrusion Line
In order to meet the market needs, Liansu Machinery has developed, designed and produced a variety oftelecommunication duct extrusion lines and has successfully delivered more than 30 projects.
High efficiency
For micro-silicon core pipe extrusion line, Liansu Machinery equips supporting high speed automatic winder, which can realize line speed of 60~100m/min.
High Quality
The extruder adopts separate mixing screw design, which makes the plasticizing and mixing effect better. In addition, the mold is equipped with the latest spiral distributor and reasonable flow channel design, in which the melt is evenly distributed and the temperature is constant, making the wall thickness of the extruded products more uniform and also ensuring that the thickness of the inner silicon core layer is suitable for the design requirements, which better controls the cost of the products.
High synchronization
The control of each equipment is highly synchronized to ensure smooth production. Both haul-off and cutting machine adopt synchronized servo speed control with wide speed range to ensure the synchronization of pipe extrusion speed and cutting trolley follow-up. The winding/unwinding machine with tension adjustment function automatically adjusts the winding speed and synchronizes it with the production line speed.
Cost saving
In order to reduce the cost of on-site construction, Liansu Machinery equips supporting large-size bundle pipe winding machine, with a maximum winding length of 1,000 meters for the 110 size, which reduces on-site connection of pipes and lowers the cost.
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