Cutting and stripping machine

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The cutting and stripping machine is used in the industrial processing of cables. It can be used to process cables, strands , shielded cables ( coaxial cables ), and with some machines also fiber optic cables and POF cables in cross-sections from 0.03 mm² to 200 mm² quickly and efficiently.

Working principle

The cable is fed into the machine by means of a transport roller or a conveyor belt. The cutting depth of the knife in the insulation is then set by programming. If you cut too deep, the copper will be damaged. If the incision is not deep enough, there will not be enough force to pull the insulation off. In all common machines, the cable is transported from left to right.

The cable runs over the knife with the desired stripping length. The knives close to the previously programmed value. Now the cable is pulled backwards and the insulation is pulled off the copper.

When fully withdrawn, the piece of insulation is completely removed and the conductor is exposed . A partial withdrawal is usually programmed for strands . This leaves some of the insulation on the cable. This prevents the individual stranded wires from jumping open and making it difficult to process the cable later.

The machine now travels the set cable length and cuts the cable. Now the second side can be stripped in the same way.

Special forms

With newer machines, it is also possible to strip multi-core cables and strip the inner conductor in one work process. In addition, cables can also be slit lengthways.

A so-called rotary unit is required for coaxial cables. This means that the cables are rotatively cut to 1/100 mm with two knives before the actual stripping process. This is necessary because the screen can only be cut rotatively. Special cutting knives with a support are required for plastic optical fiber (POF). This is a type of guide that holds the cables in place while they are being cut. In order to process fiber optic cables, a special cutting head is required to separate the integrated Kevlar protection and strain relief. Since Kevlar is an extremely tough material, the cutting head would drift apart when cutting without support and the fine fibers would not be cut through completely.

Cutting and stripping machines can be used as single machines, in most cases a feeder (prefeeder) is used in order to achieve greater reproducibility and speed.

In addition, printing devices (inkjet printing, thermal transfer printer or hot stamping) can be arranged in front of the machine and coiling machines or cable stackers ( stakers ) can be connected downstream.

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