What cut this?

[RedMF40]

Picked up this section of dump truck bumper and pintle hitch, not sure what I'll do with it yet. Maybe some heavy duty industrial art, possibly a pot-hanger for the kitchen? (no, there's no woman in my life ;-)

What made the cut? I would have thought a torch but there's no slag. The little bit of black stuff is asphalt because that's what the truck hauled. Air chisel? Wouldn't that take an awfully long time?

Also, bonus points for any estimate of towing capacity for this hitch. It's all I could do to lift the whole thing off the ground. thanks,

Gerrit in Maryland

 

[Bob]

Looks torch-cut to me, with lots of oxygen pressure.

 

[Bret4207]

Torch cut. If you get things right there's no slag to speak of.

 

[Mule Meat]

Torch or a Plasma cutter.

The pindle hook appears to be military, marks could be from heavy cable use or cut to make it thinner for a smaller trailer ring by someone.

 

[Mike(NEOhio)]

Flame cut but not a real good job (not saying I could do better).

 

[markct]

There's no slag with a torch cut only
dross...but that's a technicality
as for that cut I would say it was
torched and the dross simply knocked
off either from handling or with a
chipping hammer, if done well not much
adheres and will come off easily

 

[Bob Bancroft]

Torch. What interests me is the old hitch. The one I have, and others like it I have seen are held on with four 1/2" bolts. That's the weakest link. A friend dragging a silage truck around with a quad track broke those bolts right off. And this old thing is held on by two bolts!?

 

[RedMF40]

(quoted from post at 13:24:34 11/28/19) Torch. What interests me is the old hitch. The one I have, and others like it I have seen are held on with four 1/2" bolts. That's the weakest link. A friend dragging a silage truck around with a quad track broke those bolts right off. And this old thing is held on by two bolts!?

Ok, torch. Thanks for the replies, was wondering about that. See photo for how the hitch attaches. Big 1.5" bolt runs through it with castle nut.

 

[Bob Bancroft]

OK, so there's a casting on each side. Good enough.

 

[old]

That set up was common used in the rail road equipment. Had one of those on a truck I once had

 

[Billy Shafer]

I agree torch cut. But I have never seen one held on by just two bolts. All the miltary ones I used had four bolts holding them on.

 

[John Achmann]

That hitch should be rated for 60,000 lbs max gross tow
weight and 12,000 lbs vertical load. It?d be less if it was the
one with the spring on it.

 

[markct]

The spring doesn't reduce capacity, we have both types at work and both are rated the same 60k and 12k vertical

 

[Hoenes]

Air arc, maybe.

 

[RedMF40]

(quoted from post at 11:26:13 11/28/19) There's no slag with a torch cut only
dross...but that's a technicality


Thanks, I actually like knowing the correct terminology. Can't guarantee I'll remember it, but at least I know it right now. Dross.

 

[RedMF40]

(quoted from post at 19:05:25 11/28/19) That hitch should be rated for 60,000 lbs max gross tow
weight and 12,000 lbs vertical load. It?d be less if it was the
one with the spring on it.

60,000 LBS??? That thing is a BEAST! I would have thought maybe ten or 20 tons towing weight. IT's towing days are over, but good to know, just in case.

 

[Welding man]

In my world that would be a very rough cutting job. We would call that being butchered off and buy the way that is a pretty common hitch, I keep a new one in stock at all times. We install them on dump trucks to pull equipment trailers. 50 ton or 100,000# pintle hitches are pretty common.

 

[Mule Meat]

(quoted from post at 15:34:45 11/28/19) I agree torch cut. But I have never seen one held on by just two bolts. All the miltary ones I used had four bolts holding them on.

Two bolt pindle hooks were used on a lot of military trucks including the 5 ton and tracked vehicles. The 30 ton AM General 558736 pindle hook was the most common one used with and without shock a absorbing spring.

 

[timcasbolt]

(quoted from post at 19:26:13 11/28/19) There's no slag with a torch cut only
[b:915a6b454a]dross.[/b:915a6b454a]..but that's a technicality
as for that cut I would say it was
torched and the dross simply knocked
off either from handling or with a
chipping hammer, if done well not much
adheres and will come off easily

I learned a new word today. Thanks.

 

[ggb3]

60K lbs. would equate to 30 ton.

Geo.