Metal cutting options

Milk · Jun 19, 2020

I am installing air tubes on my GSI 42 drying bin and would like some suggestions on how to cut triangles in the floor to accept the tubes. I have heard that a plasma cutter will work but I have no experience with this . If anyone has a better way to cut triangular shape holes through thin perforated floor, I would appreciate it! Thanks in advance!!

UncleTom · Jun 19, 2020

How about a 4 inch grinder with the thin metal blade called a zip cut. Worrys good. Where eye protection and gloves.

Farmer Rock · Jun 19, 2020

If you are just cutting a triangle out of a straight piece of metal,there is no reason why an angle grinder with cut off blade wouldn't work.

4520BW · Jun 19, 2020

A metal cutting circular saw.

DeltaRed · Jun 19, 2020

4 1/2" 'side wheel' grinder with a cutoff wheel.

Russ from MN · Jun 19, 2020

I second that, 4 1/2 grinder with cutoff wheel. Be careful of the sparks, have some fire protection ready if there are any combustibles nearby.

glennster · Jun 19, 2020

if its really dry and dusty in the bin and a lot of fines under the floor be careful of a fire or dust explosion.

DoubleR · Jun 19, 2020

Grinder with a cut off wheel
as I agree with the other
posters

matthies · Jun 19, 2020

Friend of mine installed the triangle tubes over 25 years ago and a tool came with them. A sliding angled triangle that you held up against the wall with your foot and then hammered the internal piece down through the floor. Worked slick, I would be calling the place that sold them to you, as this tool went back to the company he bought the tubes from. This is after he had grain in it a few times and needed better air flow.

Milk · Jun 19, 2020

Sounds like the best idea yet! I bought them on Craigslist so don’t know where I can get the tool!

super99 · Jun 19, 2020

The ones that I have seen and done are way too small to use a grinder and cut off wheel to cut out. You need to borrow, rent or make a tool like Mathies is talking about. They make the correct size opening and it's FAST!!

rlp in Co. · Jun 20, 2020

For cutting a lot of metal, I like a
circular saw with a thin grinder wheel.

RedMF40 · Jun 20, 2020

If you have enough room, drill a starter hole big enough and then cut with a jigsaw with metal-cutting blade.

There seems to be some concern about available space to work in.
If you use a grinder, I'd also wear a good dust mask as those wheels produce some nasty airborne material.

Gerrit

Metal cutting options

Milk

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UncleTom

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Farmer Rock

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4520BW

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DeltaRed

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Russ from MN

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glennster

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DoubleR

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matthies

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Milk

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super99

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rlp in Co.

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RedMF40

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