Security wire is a broad concept. There are many kinds of security wire, such as video wire, access control line, network cable, telephone line and TV line. In short, I will demonstrate the practice of video wire with pictures. Other products are actually similar, and they are also pressed by wire injection molding machine.

This shaft is equipped with the conductor of the video cable, which is generally made of 0.5- 1.0 copper. The size depends mainly on the model of the video cable. For example, 75-5 and 50-5 are thicker, and 75-3 and 50-3 are thinner.

What is shown in the above picture is that the copper conductor is wrapped with PE material through the wire compression molding machine to form the inner insulated core of the video cable.

The copper wire effect after the PE material is wrapped, that is, the core wire of the monitoring video wire.

The core wire passes through the take-up machine and is wound on the plastic shaft for weaving.

It is very important to weave the core wire of the formed monitoring video line on a high-speed knitting machine to form a video shielding layer, because the shielding layer determines the impedance and attenuation of the video line signal. In short, it is the clarity of the video.

Put the edited video line on the injection molding machine again for injection molding, and the video line is made.

After the above three processes, the video cable is made. After it is made, it is necessary to test its impedance, attenuation and current passability with special equipment. Other security wires are basically made in this way. I don't know if this answer is clear to you.