Bridge I-Beam cutting.

[LouNY]

I got tired of renting tanks years ago for limited occasional use, so I bought a pair of tanks from Tractor Supply and now I can exchange them there.

 

[Deere Dude]

I got tired of renting tanks years ago for limited occasional use, so I bought a pair of tanks from Tractor Supply and now I can exchange them there.

Don't you buy nice new tanks and when rotated they give you piece of crap old tanks. I would have a hard time with that.

 

[Big Barn]

The gas suppliers in my area will only sell you one size of acetylene tank for exchange. Too small. If you want bigger you have to lease. They’ve spent probably millions of dollars on algorithms to squeeze every last dollar out of the little guy.

 

[4570Man]

I saw this tank at a shop.

 

[Stimw]

Don't you buy nice new tanks and when rotated they give you piece of crap old tanks. I would have a hard time with that.

The gas don't care what the outside of the tank looks like!
I have 2 sets of the medium bottles and a set of the small grab and go bottles.
Too bad I only use them for heating since I bought my Miller Plasma cutter.
Then there is the large bottle for my MIG. I guess I am a bottle hog!

 

[LouNY]

Don't you buy nice new tanks and when rotated they give you piece of crap old tanks. I would have a hard time with that.

So far I've always gotten decent tanks.

 

[Big Barn]

I guess I am a bottle hog!

Me too! I embarrassed to say I haven’t gotten around to building a mobile “cage” for my oxygen and inert gas tanks. Acetylene and propane are secure in a covered outdoor storage.

 

[kthompson]

Visit rental center.

 

[fried1765]

Regarding abrasive cut off wheels. I use 4 1/2 and 7 zip cut wheels every day. Almost exclusively for making a small precise cut or removing a welding tack I screwed up on (lots of those )

These cuts are mostly well under a minute in duration. In my opinion any cut jobs involving longer lengths of time will certainly increase the chance of even a moment of carelessness which could end drastically. A good example would be where Gary mentioned not having enough clearance for the grinder in the web of the I beam. Good chance of getting the disc bound up in that corner while changing direction. JMO

I have a lovely permanent gash mark on my inner right thigh, from a 4-1/2" grinder that bound up and got me.

 

[fried1765]

OP here. I used to burn through heavy steel with 1/4" welding rods with the welder maxed out. It was a messy job. I will have to figure out what a zip cutter is, never heard of that.

I got all kinds of good advice so far and all is well received, even to make the bridge not as long. If I made a ramp and jump the last couple feet wouldn't work because I can't build up enough speed.

Either way, I took a beam out today and was able to cut through using a 4-1/2 cheapo discs. I was able to gut through to the webs from the outside with a fresh disc.

Now to cut 6 of them total without any mishap. I got goggles and earmuffs but thought about a face shield maybe. Those discs kind of explode on me so I will get some metal diamond cutters for sure even if I will be done with these cuts.

I think you may be misinterpreting the use of the term "ramp".
The intent of my "ramp" comment was that you might, prepare a longer access ramp, using fill, or rock and fill.
Seems like two feet more access/approach ramp on each side would do the job.