Custom fabing crane parts.......

[lorenzo]

Here's a nice little job we landed, custom fabing some parts for a Manatowic 888 lattice boom crane. This part is what we refer to as a spotter..... it will mount to the track frame of the crane, positioned between the 2 tracks. On the other end it will get welded to a massive auger system which is used to mix soil.

All the welding was done using...

MIG, Hobart Excel Arc 71, 1/16" dia.
OVC, 32
Wire speed, 300 IPM
Gas, 75/25
Pre-heated to approx 500* F
All the mill scale in the joint area was removed

Tack together "I" beam.... flanges, 1" x 15" x 60", web 5/8" x 19" x 60"

Next fab the pin ears, 5/8" plate......

Integrate the pin ears with the beam..... notice that the inside ears are slotted to pass over the web.....

Everything is tacked and ready for welding.....

After the "I" beam is welded I add the bracing as well as the tapered plates that will serve as the connection point to the auger assembly. After the welding is completed the pin ears are line bored.......

Notice that the bracing is reversed from one side to the other.....

Thanks for looking..........

 

[Welderpaul]

I'm impressed!
The space between the pin ears at the holed end looks bigger than the guage of the plate they are welded either side of. Are they splayed out?

 

[lorenzo]

Thanks welderpaul....

Good eye......yes they are splayed. The flange plate is 25mm (1") and the spacing at the point where the pin goes through is approx. 44mm (1.75").

 

[Drains]

Questions questions...
But first, nice job.

Then - you're cutting with oxy fuel, right. But is that on a computer controlled profiler or a magic eye jobbie, or what?
And how do you do your preheating?
And I presume you have a 100 ton or so press brake for your bends
It's good to see some real work again Lorenzo (i've not been in the fabricating trade for a few years now). Keep the pics coming!

 

[lorenzo]

Questions questions...
But first, nice job.

Then - you're cutting with oxy fuel, right. But is that on a computer controlled profiler or a magic eye jobbie, or what?
And how do you do your preheating?
And I presume you have a 100 ton or so press brake for your bends
It's good to see some real work again Lorenzo (i've not been in the fabricating trade for a few years now). Keep the pics coming!

Thanks for the good words guys....

To answer your questions.....
Yes my buring table is oxy/ fuel.. The machine uses an eye to follow the template that I have drawn to full size. Here is a pic of some other parts for this job that I cut ....

My pre heating is done mostly with a heating tip..... Rosebud is the term use in the US.

I think the tonnage on the press in 150, with an 8 ft bed. It's not a machine I would use daily for any type of precision work but it get us by for the most part.

 

[Welderpaul]

Have you got any other pictures of nice big fabbed items - they are exciting!

 

[Drains]

What about you Paul? Got any welders porn?

 

[Welderpaul]

Yeah, mainly just picture after picture of wrought iron products but i've got some pictures of some big stuff. I'll dig em out and post em later!

 

[MigTig]

Love the photos, impressive! I currently make little BBQ raks, and fix wheel barrows (need a job!)

Would love to see some of that Wrought Iron work, Paul, as I have been asked to do a little project soon, and I would like to get some.. Inspiration..
Keep up the work!

 

[Drains]

When I were a youngun, they trained me to make things like this....
Sorry, cant do the up close and personal pics like Lorenzo can, and this thing wasn't one of ours (credits to Woodcock and Wilson), but it brings a little tear to me eye...

 

[Welderpaul]

mmmmmm. worrisit?

 

[Drains]

Centrifugal fan. The one nearest the camera probably has a backward inclined bladed impeller. The other has a narrow casing, so is more of a blower - high pressure, lowish volume. They are pretty fancy ones with all those stiffeners on the cases. Plus they have inlet boxes - makes the airflow more stable, so more efficient and quieter.

Five years making them things.... I loved it... they closed us down... sob
Best thing that ever happened to me mind. Never looked back, except wistfully.

BTW the ones in the pic were made in Huddersfield. We were in Brum.

 

[Welderpaul]

How long did it take to knock one o those out?

 

[Drains]

Dunno really. It's a man-hours thing. Impellers were put together in one bay by one set of top fabricators. Casings in another bay. Inlet cones fabricated by another crew, including a bloke called Jimmy Haverty, who had the biggest muscles in the world, and swung a 5lb hammer all day long, beating the cone profiles - heated to red with a 'rosebud' by the auxiliary, then hammered over a former. Then the shafts would be made in the machine shop. The impeller hub and boss welded together by two mig boys sitting each side of a powered rotator. Then all into the fitting shop, then the spray shop to be made to look good by a bloke called George, onto the wagon and away - or into the test bed where I would put them through their paces and usually discover they couldn't quite do the duty they were meant to pull because the sales office were a bit optimistic. Then my job was to go on site and test the things again and tell them their ducting was crap (which was usually true), and that it was their fault the fans wern't doing what they were meant to (which often wasn't)
Happy days.

 

[lexi]

Great pics Lorenzo. Reminds me when I was a little boy and an uncle took me into Fairfields Shipbuilders in Govan. I couldn`t believe the plate that was being cut with oxy/acy.........long before H&S issues. Dads and uncles would regularly take a boy to work and show them the trades that they might choose to work at.

I am figuring how to get a workbench like that into my 19ftx9ft garage!
Alex

 

[Justme]

Take the roof off & the walls LOL.

Justme