Do you want to buy a used cable cutting machine in Moscow?

Why cutting cables and wires is beneficial

If we approach this issue from a commercial point of view, then extracting metal from waste wire products can become a source of additional income. The average price at collection points for non-ferrous scrap metal per 1 kg is:

• copper – 400 rub.;
• brass – 240 rub.;
• lead - 100 rubles;
• aluminum – 110 rub.

Important! It is unprofitable to recycle cables and wires because processing enterprises incur the costs of removing the insulating coating from wire products to recover the metal. Therefore, delivery may cost more than the profit from delivering the insulated cable.

The metal of wires and cables contains a minimum of impurities, so it is valued much higher than any other type of scrap. With a skillful approach, you can quickly strip flexible electrical conductors in your home workshop. To do this, you will need special equipment - a cable cutting machine (stripper).

Disposal of scrap and waste cables and transformer buses on machines

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The principle of mechanical removal of cable insulation and braiding

DIY digital voltmeter

The mechanics of cutting a cable or wire is to make one or more longitudinal cuts in the insulating layer. Shells are usually made of PVC or rubber. These are quite soft materials. To cut them, simply pull the wire through the sharp blade of the cutter.

The principle of mechanical cutting of cable products is that the wire is fed into the machine socket by drawing conical rollers, which are rotated by an electric motor drive. The cable is cut with a knife, only metal appears at the output, the removed braiding and insulation remain on the back of the equipment.

The design of a machine for cutting wires can be different, depending on the characteristics of the processed product: the diameter of the wire, the thickness of the insulating coating, the multi-core filling, the presence of armored braiding.

A simple tool for quickly stripping wires

In this review, the author shares an idea on how to make a simple tool for quickly stripping cables and electrical wires with your own hands.

This tool will be useful not only for electricians, but for everyone who is faced with the installation of electrical wiring in an apartment, private house and country house. Making such a device is very simple.

Required materials and tools:

1. a small piece of metal strip;
2. blade for a stationery knife;
3. fasteners: bolt, two washers, wing nut;
4. welding machine;
5. spray paint.

Main stages of work

First of all, the author bends a piece of metal strip, using a round steel bar as a “template” (you can take a piece of round wood or a plastic pipe of a suitable diameter).

The “tail” part of the part will need to be scalded, but only on one side. The weld seam must be cleaned.

Next, in the workpiece you need to use a grinder or other accessible method to make a longitudinal slot approximately 4-5 cm long.

Then the workpiece needs to be painted with matte black paint. Aerosol paint, which is sold in cans, is perfect for this.

At the last stage, we insert a blade for a stationery knife into the body of the device and fix it with a bolt and a wing nut.

We set the blade in the required position, depending on the thickness of the wire, thread the cable into the hole in the housing and, carefully moving the tool, cut the insulation.

For more information on how to make a simple tool for quickly removing insulation from wires, watch this video.

INCREDIBLY HANDMADE TOOL!

Stripper designs and sequence of their operation

DIY soldering iron

The structure of the machine for cutting wire products consists of two moving units enclosed in a massive body. The lower assembly is two bevel gears on an axle. The rollers face each other with narrowed tops in the form of a Y-shaped opening.

The roller axis is connected directly or through a drive belt to the electric motor shaft. The end of the cable is laid on the cones of the lower node.

In the upper part of the machine, a frame with a circular knife moves along vertical guides on a horizontal axis. Using the adjusting screw, the knife is pressed against the cable so that it enters the wire only to a depth equal to the thickness of the insulating coating.

Machine drawing

Once the cable is installed, the bevel gears are driven. The knife cuts the insulation along the wire. All that remains is to wind the bare wires into a compact coil or twist them into a convenient bundle.

Manufacturing and operation of individual components

Do-it-yourself electrical wiring in the apartment

The stripper consists of several main components, these are:

• frame;
• feed unit;
• cutting block;
• power block

Design of the cutting machine

Frame

The supporting block can be a frame made of metal plates. These are the top platform, base and sides.

Feeding unit

The assembly consists of tapered rollers mounted on an axis, which rests on bearings in the side plates. The axle protrudes beyond the frame and is connected to the drive shaft of the power unit.

Cutting block

The unit is a U-shaped frame consisting of two side plates and a horizontal platform. An axis with a cutting disk is mounted at the bottom of the frame, which rotates on a bearing on one of the sidewalls.

A vertical rod is inserted into the platform, which can rotate around its axis. The top of the threaded rod passes through the housing top plate nut. A handle is attached to the end of the rod.

Cutting block

Power block

The feeding unit is driven by an electric motor, the shaft of which can be connected directly to the knife axis or through a transmission system (gearbox, belt). For small volumes of work, a simple lever is used as a propulsion device. It is activated by simple rotation by the worker’s hand.

Tabletop machine for stripping cables and wires

In order not to spend a lot of time stripping insulation from electrical cables and wires, the author suggests using a tabletop machine. You can make it yourself.

The operating principle of the machine is extremely simple. The cable is pulled between two conical rollers. During the broaching process, a longitudinal cut is made in the insulation using a cutter.

Using this device, you can remove insulation from cables and wires with a cross-section from 4 to 25 mm. The machine itself is easily mounted on a desktop using self-tapping screws.

The shaft on which the cone rollers are located can be driven manually using a crank. Or you can insert the end of the shaft into the drill chuck for automatic operation.

The cone rollers themselves can be used either ready-made or made with your own hands from ordinary nuts.

Machine manufacturing process

We put the conical rollers on the shaft (in this case it is a threaded rod) and secure it with nuts. Two metal plates act as side walls. We drill holes in them for the shaft.

The craftsman welds pieces of corner to the bottom of the side walls. After this, you will need to drill holes in them for fastening to a desktop or other surface.

A piece of channel is attached to the top of the side walls. If there is no channel of a suitable size, then this part can be welded from two corners.

Next, you need to cut grooves in the side walls to attach the movable U-shaped platform. It can also be welded from two pieces of angle steel.

In the upper part of the structure and in the movable platform itself, we drill a hole and install a piece of a pin. Using a pin, you can lower and raise the platform.

After that, all that remains is to install the cutter. It can be made from a piece of saw blade. We disassemble the machine, paint all the parts, and reassemble it again.

Details on how to make a tabletop machine for stripping cables and wires can be seen in the video on our website. The idea was shared by the author of the YouTube channel Rough Hands and Unusual Ideas.

Andrey Vasiliev

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Features of working with machines for armored cables

Armored cable is a universal conductor of electric current. Unlike simple insulated wires, the metal braiding of the conductor gives it special strength and creates reliable protection from external negative factors.

The armor is a two-layer spiral shell made of steel tape. The cross-sectional structure of the armored cable is shown in the lower figure.

Cross section of armored cable

Removing metal tape requires a powerful power unit and durable, sharp disc blades. Industrial machines are equipped with cutting units that can clean several armored cables of different diameters at once. This is due to the need to process large quantities of wire products per work shift.

Note! Passing through the cutting unit, the knife cleans the cable from the surface polymer or rubber hose, electrically conductive screen (armor) and PVC belt insulation.

Only factory-made machines can remove metal insulation. They are large units. After the armor is removed, as a rule, three insulated cores are obtained. They are cut on the same machine, placing them in other openings of the cutting block.

Stripper for cutting armored cable

Types of equipment

For small volumes of work, purchasing expensive equipment is not practical. Home craftsmen assemble simple devices for cleaning small-diameter wires; they also make quite complex universal strippers for cutting cables.

Simple device

The easiest way to strip a wire from PVC insulation is to make a device from the following materials:

• two wooden blocks measuring 40 x 40 x 400 mm;
• two screws 90 mm long with M 8 nuts;
• painting or stationery knife.

Step by step assembly:

1. The bars are tightened with a clamp.
2. Stepping back from the ends of the planks by 40 mm on both sides, the planks are drilled through.
3. The screws are threaded through the holes and the wooden elements are tightened with nuts.
4. 6 holes ø from 2 to 12 mm are drilled along the connection line.
5. Before stripping the wires of insulation, insert a knife blade into the gap.
6. The tip of the cutter is placed in the middle of the opening of the required diameter.
7. The nuts are finally tightened. The device is ready for use.

Simple device

Remove insulation as follows:

• Having loosened the nuts, the knife is moved to the desired hole, the bars are tightened again;
• the wire is inserted into the opening so that its end comes out on the other side of the device;
• Having grabbed the core with pliers, pull the entire wire through the hole;
• metal wires are separated from the insulation and given a compact shape.

Universal stripper

In order to strip wire products in relatively large volumes, you will need a universal machine. Making it yourself is not easy. Experience and skill in handling and availability of metalworking equipment will be required. As a last resort, having made drawings, the parts can be made in the nearest workshop.

To assemble a homemade stripper you will need:

• steel sheet 8 mm thick;
• two bevel gears;
• rod with threaded M 8;
• round steel rod ø 8 mm;
• L-shaped lever;
• M 8 nuts and washers.

Step-by-step instructions for assembling the machine:

1. According to the drawing, the metal strip is marked using a tape measure and a marker.
2. An angle machine with a diamond wheel is used to cut the metal into assembly elements.
3. Corner slots are made in the strip. Along these lines, the workpiece is bent into a frame, resulting in a stripper body.
4. They also make a movable U-shaped frame of the cutting unit.
5. The side walls of the housing and block are drilled on both sides.
6. A shaft with rollers mounted on it is inserted into the housing.
7. An L-shaped handle is attached to the end of the shaft.
8. A shaft with a disk knife is inserted into the holes of the inner frame.
9. The cutting disc is made from a flat washer, the edges of which are sharpened using sandpaper.
10. An M8 nut is inserted into the pre-drilled hole in the upper platform in the center.
11. Screw in the rod, the lower end of which is secured in the hinge seat of the cutting block using a spring washer.
12. By rotating the rod handle, you set the height of the gap between the knife and the drive rollers.
13. Insert the end of the cable into the opening and begin to turn the handle.
14. Instead of a lever, an electric motor is installed, the shaft of which is connected to the axis of the feed rollers.

Cutting machine with electric motor

Additional Information. This instruction is advisory in nature. Each master is free to add or come up with his own design for a cable cutting machine. The main thing is the principle of pulling the wire along the cutter blade.

The topic of the article “Do-it-yourself cable cutting machine drawings” is of interest to those people who can realize themselves in this type of business, such as extracting non-ferrous metal from waste wire products. Today, cutting cables and wires at home using a homemade machine is a great idea for earning extra income.

Features of cable cutting machines

We offer a range of cable cutting equipment that solves a wide range of problems. KRS 14-09 "Maxim" processes waste cable products with a diameter of 0.5-40 mm, as well as transformer busbars up to 8 mm thick. The machine provides an optimal cleaning speed of 40 m/min. Equipped with an economical 3 kW motor. KRS 3200 M cuts copper and aluminum wires with a diameter of 0.8-3 mm. The unit is characterized by increased productivity and requires servicing by 1-4 operators. Unpretentious, economical (energy consumption - 4.5 kW). KRS 2500 “Bychok” is a 3-knife machine for thick cables with several layers of protection. Involves loading in pieces of 1.2-1.5 m each. KRS 1400 “Grasshopper ” is a 2-shaft model equipped with 11 knives. Involves adjusting the depth of the cut. KRS 35-240 “Boa” is used for pulling the steel core from AC type wires. Supports loading in pieces of 15-40 m. ShKRS-09 M “Shrek” processes transformer busbars without size restrictions, as well as cable products of small thickness. KRS 2 in 1 “Ant” cuts household and industrial wires. It is lightweight (60 kg). KRS-125 “Chistik” is designed for processing transformer busbars up to 22 mm thick. Economical (1.5 kW), lightweight (40 kg).

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