Cheap welder, but only for certain areas of application

Cheap welder, but only for certain areas of application

Einhell Flux-Cored Welding Machine BT-FW 100, 31 V, incl. Earth clamp, torch, welding screen, chipping hammer, carrying strap (tool)

Customer Review

Hello There,
prior to the purchase of this Fülldrahtschweißgerätes I researched the internet for useful reviews and found opinions of "very great" to "crap in", but also a lot of punditry and mixing of the most common types of welding. So I set myself the goal here give an objective opinion and at the same time the image and notions of welding, some have obvious a bit too erweitern.Ich am engineering master mechanic with many years of professional experience and sweat regularly with different systems, so I think that I may.
The Einhell Fülldrahtschweißgerät I needed for a single purpose: On my second car at TÜV several rust spots had been criticized on the frame that I wanted to weld themselves for economic reasons. For a favorable welder was needed with which thin sheets were welded.
There are basically 2 types of welding equipment, protective gas and electrode (there are many varieties, but these are the most common).
Electrode welding machines are the known favorable metal boxes the size of a double shoeboxes offered for 60-100 euros in the construction market and with which the thick grauumhüllten rods are welded. With an electrode welder to weld neat stitching that not only look good but also really welded and not "glued" are, is for a beginner hardly feasible, because the electrode must be ignited by "painting" first on the metal, which they like sticks , The protection of the liquid weld from the ambient air takes over the wrapping of the electrode burns during welding and settles as a layer on the seam of the can, after cooling, they abklopft. Electrode welding takes you, to put it simply, with rather thick-walled workpieces, although you can also weld thinner sheets.
Inert gas welding devices have a gas cylinder and a hose pack with pistol grip, comes from the welding of both the wire and the shielding gas that protects the liquid seam from the ambient air. Through the gas, there is no slag and by the pistol grip, the welded at your fingertips and automatically tracked wire can thus achieve any satisfactory results relatively quickly. Amperage and wire feed can be set separately, so that you can adapt the device to the desired welding conditions from thin sheet metal to steel girders. All this has its price, as a professional device will cost from 600 euros upwards.
This brings us to the actual topic, the Fülldrahtschweißgerät. This device is a lightweight !!! Inert gas welding equipment: Instead of expensive gas bottle for the protective gas is incorporated a means in particular cored wire, which burns when welding and is intended to distribute Schutzgasathmosphäre and held separately adjustable amperage as the protective gas appliance, there are only 2 stages, the wire feed is infinitely, like its big brother, , Another saving point towards the professional device is the smaller power, what you need to see that a normal power supply is sufficient here, but 400V-power is needed at the big brother. Thus, if in other comments this hobby device is compared negatively with professional equipment, this is unjustified.
For device. The first impression when unpacking was positive housing okay, over cable assembly with pistol grip obviously from a "real" shielding gas device, wire-transport system also looked quite good (Hint: 1). The wire before threading actually using files and sandpaper front whole fillet, otherwise he gets caught in the hose 2) the tape that secures the new wire on the reel, remove only after the wire has been completed, otherwise relaxed he abruptly from the roll and a laborious winding is announced). Threaded wire, we went to the welding. I had already a perforated plate, as it is prescribed by TÜV for repair welding, prepared in advance. After the first welding points the great disillusionment, this result I had expected otherwise. Instead of the flat welds, as I knew it from the inert gas unit in the company, there was thick "pearls" and the surface was not accustomed smooth, but as "bubbly" or "fluffy". After I analyzed the welds a bit, I also knew why: The favorable Einhell device delivers up by far not so high current levels as usual and who ever heard the hiss of the protective gas or saw how thick as an electrode is wrapped, can understand that in a 0.8mm-filling wire never ever can replace something that little bit of filling. After back and forth about it for a day if I should keep the device or not, I welded again a few test sheets and made experiments with different wire feeders until eventually the result was satisfactory and I went to the car. Although I always found more holes in the sill when removing rust, all I could weld. Great was of course that allowed no welds for repair welding on the frame, but only spot welds, which I could still grind, because visually appealing welds, as I previously knew from my welding practice with the other two types of devices, are not possible with a Fülldrahtgerät.
So I can give no clear recommendation to buy, it all depends on what you want to weld with it: The best, but most expensive is an inert gas welding equipment.
Who wants occasional welding in agriculture on plow or make his balcony railing itself, is better off with an electrode device when he dominated it.
Who wants to weld thin plates as a hobby together or repair his car now and again inexpensive, can be a Fülldrahtgerät that costs little and little maintenance costs compared to an inert gas unit has, befriend.
But if I read somewhere that someone wrote that he could weld two 10 mm plates with cored wire, then I have to say that is not welded here but merely "glued" was that the few amps this Fülldrahtgerätes rich for more than 3mm - sheets. What the smaller current stage on the device is there, I can not understand, because I was able to achieve a usable result.
To wire I can say that I have both the very inexpensive Berlan-wire, which is also offered here and the twice as expensive Guédé welded and could not detect any difference.
And yes: My car has passed without any problems, the main examination by TÜV!

** ** Wonders Flowery Schön Rank: 5/5
March 15
Excellent support 3 Rank: 5/5
May 8
Note 1 April Rank: 5/5
May 26
Awesome 7128 6717 Rank: 5/5
October 5
its long for so little Rank: 4/5
October 15

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