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Coil Cords for telecommunication Applications

QIJUN Electric specializes in making telephone coiled cords, particularly for the telephone handset. Cords can come in a variety of colors, lengths and with or without terminated ends.

STEP ONE: Jacket material selection: According to different country, we will use different material. For example:

Polyurethan (PUR)-thermoplastic elastomere.

Polyurethane has become increasingly important in the cable industry over the past years.

Polyvinylchloride (PVC)-thermoplastic material

The application areas for this thermoplast in the plastics industry are diverse. There are various types of PVC used in the wire and cable industry.

STEP TWO: Wind the cable onto a rod. During this process the coiled cord starts to look like the final product. The cable is wrapped around a rod the can be a small as 1/4 of an inch to a large as 3 or 4 inches in diameter. The size of the rod creates the inside diameter (ID) of the coiled cable. A small ID creates a coiled cord with more spring action and a larger ID creates less spring action. If the ID of the coil is too small the cord will have difficulty retaining the shape. The length of the coiled rod is controlled not the number of coils.

STEP THREE: Heat treating. The outer jacket materials can be softened with heat, however too much heat will melt the material and too little won’t change anything. The goal is to heat the material JUST hot enough and for JUST the right amount of time to get it to stay in the coiled shape. This requires experience and know how because if it isn’t done right then the coiled cord won’t perform correctly.

STEP FOUR: Reverse winding. During heat treating the material on the outside of the coil cord is lengthened and the material on the inside is shortened. When the coil cord is reverse wound, or turned inside out, the force pulls the coils together giving the coil cord the spring action.

STEP FIVE Molding of RJ11 modular plug,connector,terminal or tinned. . For the export market the cord can be built with the appropriate plug for the final destination country.

We are a famous manufacturer of the wide assortment of Telephone Cable and Wires. These coil cords are admired for their excellent resistance to shock and flawless finish. For more information, welcome to send a message to us here !

Keywords: Telephone cables,Telephone handset cord,coiled cord, spiral cable, spring cord, retractable wires, USB cable, patch cord, network cabling,RJ11 cable, Cat5e Networking, Cat6A networking, fibre cable, RJ45 network cable, fibre patch cables, computer cables, telephone cabling, home network cabinets, RJ45 plugs and boots