Power at the click of a button: Electromagnetic mass for DIY welding

Those who tried to place a magnetic contact on the welding ground could appreciate its convenience, but also encountered the disadvantages of such a device. It constantly collects metal shavings, and it is difficult to tear it off if the magnet does not provide a comfortable handle. An electromagnet has all the advantages of such a contact, but it is devoid of the described disadvantages. This device is very easy to make, so anyone can make it.

Materials:

electromagnetic door lock - http://alii.pub/5lx2v0
toggle switch;
multi-wire cable;
power supply 12 V;
nylon ties.

Manufacturing process of electromagnetic ground contact

An electromagnetic door lock will be used as the basis of the contact.

You need to remove its casing and plugs to get to the working part.

You need to remove the control board from it. It is important to remember the sequence of wires on it. They are stripped and twisted in pairs: the first and third, the second and fourth.There are also locks with only two wires; with them everything is even simpler.

One of the plugs must be drilled to match the diameter of the power cable.

Then it is soldered to the electromagnet wires through a toggle switch. Connections that may short out are isolated.

Next you need to return the casing to the electromagnet.

You can now install a toggle switch at the location of the board. To do this, you will need to drill a hole for its switch. Next, standard plugs and trims are installed.

A hole is drilled in the center of the electromagnet on the back side and a thread is cut into it. Then the ground cable from welding is screwed to it.