MB25 Torch & 0.6mm wire

[mileshc]

Hi I have a new Binzel MB25 torch connected to a Classic Mig (Elland) 200, using 0.6mm 5kg SIP wire. All new (weldequip Cheers).

I am new to welding, but have used many types of electrical, electronic & mechanical tools, so only a partial fat fingered oaf ;-)

I cannot for the the life of me get the bloody thing to feed the wire without it coiling up at the torches connector end, forming a "spring" of wire in the brass end, which I have to pull out & uncoil & cut off, 50m so far. The tensioner is numbered, very similar to the tutorial picture here. It has been tried at 3, 2 & currently 1, least tension, but still coils up.

I have cut off a 4m length of 0.6mm wire & have the torch on the dining table, no workshop yet. I have manually fed the cut wire to feel what is happening inside. It feeds so far & when it gets to the torch area meets increased resistance & an obstruction or "internal burr".

I am going to strip it to see if I see anything untoward, but the main question is, do I need an MB15 for 0.6mm wire?

According to Binzel's website the MB25 is suitable for 0.8mm to 1.2mm, but parts listings have different liners for the smaller size wire, should I get a smaller liner?

Cheers, Miles HC

And thank you for such a trove of info & help, flaming marvellous, which reminds me I must remove all combustible material from my practice area.

 

[Wozzaaah]

Remove the torch from the machine, push a bit of wire through the exit hole in the euro connector then refit the torch ensuring you poke the wire into the liner, that should get over the first snag point, removing the contact tip before feeding the wire should sort out the second snag point. Also, ake sure the cut end is nice and neat, no burrs or chisel shaped cuts, as tesco say, 'every little helps' .

 

[mileshc]

Thank you very much Wozzaaah,

I have tried both of those methods, I even removed the adapter that the contact tip screws into.

When manually feeding the cut-off bit or wire for testing & looking down the swan neck the snag or obstruction occurs out of view, it does not get to the contact tip area or screw threads. Perhaps it is the transition from the main liner to the swan neck part?

I will dismantle this bit & see.

I have downloaded the Binzel parts list & there are no contact tips listed for 0.6mm & it only states 0.8,1 & 1.2mm. But there is a spiral liner listed for 0.6 - 0.8mm. I Know a 0.6mm contact tip fits as I have fitted one BTW ;-)

Cheers.

 

[weldequip]

The MB25 torch supplied with that machine will have a 1.0-1.2mm (Red) Lining fitted & probably a 1.0mm Contact Tip, so you're not going to get an ideal set up for 0.6mm wire. You could change the Lining & Contact Tip to improve things but I would consider fitting the MB15 torch, which are more ideally suited to 0.6mm wire + much easier to use for fine welding
Also, check that you have the correct groove in position on the feed rollers...there are two...0.6 & 0.8mm; you swap them round depending on wire diameter. Could even be a poorly wound wire reel not helping matters.
weldequip

 

[mileshc]

Weldequip Hello! & thank you very much again.

I was beginning to draw to that conclusion. Have used 0.6 roller & an 0.6mm tip, new but smaller than the 1mm fitted i.e one for a MB15?. I have dismantled it, which is good practise I guess.

Of course I can feed the wire through quite well now & no obstructions, bugger. A couple of questions

Should I be able to see the liner when removing the "nut" at the connector end or after removing the swan neck? or is it further in as it were?

Could you please PM me for a price please for a Binzel MB15.

Cheers.

 

[weldequip]

Should I be able to see the liner when removing the "nut" at the connector end or after removing the swan neck? or is it further in as it were?

Yes. You remove the brass nut at the screw-in plug end to change the Lining...just pulls out. At the neck end it should be visible when you remove the copper contact tip holder...sits just inside that. It's possible it could heve been cut too short.
weldequip

 

[mileshc]

In that case I have a feeling it is not there, all I can see at either end is an empty orifice about 6mm i.d.

I have just unscrewed the brass "cap / coupling nut (M10?)" from the male threaded connector end. When I peer down the pipe there is just the 6mm hole / pipe.

I assume that the liner would feed down here towards the torch / handle end & then be clamped when the coupling nut is re-fitted, as it appears to have a T shaped end or nipple, sort of like a Bowden cable?. I have been studying the Binzel spare parts PDF & exploded drawing, but it is not clear. Although I can see the shape & end "cap" of the spiral liners.

I will see If I can have a look at one at a local supplier, If they will let me, as I am not at all sure.

If I get a chance I'll snap a photo.

Cheers.

 

[mileshc]

Ok I have taken a couple of photos, see what you think, I might be able to get a closer, but the macro is not very good, 500mm closest I think.

 

[JayRS4]

Can`t help much on the subject, but you do seem to be missing an O ring on the gas feed connection

 

[mileshc]

Hello,

The o-ring is very small in diameter & thickness, but is there.

 

[Paul.]

The liners missing from that, it'll have a flanged brass fitting on the end that is trapped in by the nut. looks like this

 

[mileshc]

OK after much searching, viewing off tiny pictures & some bigger ones then reading the flaming instructions on fitting a liner to a Binzel Euro-torch. I have to say that I am 82.66% certain It is not fitted with one. A liner that is.

Could someone please check my photos, Thank you.

 

[mileshc]

Cheers Paul, I think I just posted with the same conclusion & didn't refresh the page to see your post.

Thank you all very much.

I will go & re-assemble the torch now, wipe the blood off the handle, & see about obtaining a liner or two & some consumables.

Cheers

Miles HC (the Oaf)

 

[Wozzaaah]

Sorry, couldn't resist it

 

[Robotstar5]

We use a lot of Binzel torches at work, I've found the best way to fit the liner (it will be too long out of the packet) is :
Remove tip adapter / gas diffuser
Insert liner and cut flush
Remove liner and cut a further 5mm off, grind any burrs off
Insert liner, fit retaining nut then screw in tip adapter - should engage liner in recess
Hope this helps

 

[mileshc]

Thank you Robotstar5

 

[weldequip]

Nope, definately no Liner fitted there...fecking Chinese for you that!
One in the post tomorrow morning for you
weldequip

 

[mileshc]

Superlative, Sunday service, the god/'s (if you believe in that sort of thing) smile, in a nice sort of way upon you, & all, hopefully ;-)

Cheers, weldequip.

 

[weldequip]

Superlative

Shhhh...you make it sound like an SIP using that word!
Definately the cause of your wire feed problems not having the Liner fitted Give us a tinkle when you get the Liner & I'll guide you through fitting it
weldequip