How it's made | the hand winch | step 5: welding

Welding is very important for products that move heavy loads, the winch must of course be able to uphold the load. After all, the welding work keeps the winch together.

How it's made | the hand winch | step 5: welding

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Welding is very important for products that move heavy loads, the winch must of course be able to uphold the load. After all, the welding work keeps the winch together.

Eddy has been welding for more than 30 years. He has used all sorts of welding techniques in the years and therefore has a lot of experience. Eddy eplains that there are two welding techniques that are used within Gebuwin, namely: MIG/MAG and TIG. 90% of all operations are done with MIG/MAG. MIG/MAG welding is a specific welding technique. The name is an abbreviation and stands for Metal Inert Gas / Metal Active Gas. They are actually two techniques, but because the only difference is the sort of gas used, they are however regarded as being the same. Eddy indicates that arc welding is his favorite way of welding. “I cannot explain why, but there is more feeling and skill involved” he says.

During MIG/MAG welding, a wire (3), which is kept energized,  is continuously supplied mechanically during welding. This voltage creates a plasma arc between the wire and the workpiece (7), which become so hot that the material melts and flows together. During welding, the molten bath (5) is protected by a protective gas (4).

The thickness of the welding wire is partly determined by the thickness of the material and the required ampere. At Gebuwin, 1 mm of wire is used for all operations, says Eddy. During welding it is important to keep a close eye on the melting process, otherwise you will not get good adhesion. This is very important for hoisting products. This also makes it difficult to judge with the naked eye whether a weld is good or not, this definitely requires the necessary experience tells Eddy.

 

For the WW5000 (worm gear winch with a lifting capacity of 5000 kg) there are two parts which are welded: the house and the drum. For the house as well as for the drum, Eddy is busy for about 15 minutes per part. For the drum Eddy uses a table on which the wheel automatically rotates, in order to get a perfect weld as shown in the video above.

After all parts have been welded, they can be painted. Read here (available soon) everything about the paint process at Gebuwin.

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