Help Me Find A Tool

[SAvoltage]

A little background. I manage a hose/gasket house here in TX. We mainly produce hoses for the oilfield and other industrial applications around here as well as gaskets.

We produce a 4" Frac hose that has a Hammer Union on the end of it for its fittings. Its a very heavy duty hose and quite expensive. My largest customer buys a million plus of dollars of this hose yearly. The way it works is there is a male and female side. One side spins around the threads and is tightened by hitting a sledge hammer onto some nubs that make it very tight.

These hoses are connected and disconnected on a frequent basis. Over time the "nubs" you head wear out and get beaten until they cant be used any more. My customer wants a solution to not buying a whole new hose.

I have found a supplier that sells new hammers in two pieces that bolt together. Great problem solved going forward. I just put these on during assembly and they can just replace them when worn out.

My problem is thousands of hoses out in the field currently. They need a way to cut the old single pieces off without damaging the hose. And they want us to provide the service. Great another sale for me. Not I have to figure out how. My first thought was a grinder but that runs the risk of cutting into the hose. What I am thinking now is some type of hydraulic snip to cut it twice and pull it off. Kinda like a small "jaws of life" but I cant seem to find anything.

Give me some thoughts?

Wanted to add a picture of a hammer union, but am unable to due to post count. Sorry. Thanks in advance for any help on what direction to go.

 

[alcorelli]

Did you call Hurst?
I believe they make the Jaws of Life. There are quite a few attachments for it and its hydraulic power pack.
You have a high dollar client. You need a professional solution.


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[ScottsGT]

Drill a series of 1/8" holes in a line (carefully) and smack it with a chisel?

 

[CBassB]

What material is it? Is it crimped on? I usually get brass sleeves off by hitting them with a chisel to spread them and they slip off the end. I don’t know if that is a viable option for you. Or as said earlier you could drill and crack it. Or a grinder, don’t cut the full depth, leave some material for protection and use a chisel to crack it apart.

Once you have a picture or maybe a link it will be easier to provide options.

S


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[captain14]

A little background. I manage a hose/gasket house here in TX. We mainly produce hoses for the oilfield and other industrial applications around here as well as gaskets.

We produce a 4" Frac hose that has a Hammer Union on the end of it for its fittings. Its a very heavy duty hose and quite expensive. My largest customer buys a million plus of dollars of this hose yearly. The way it works is there is a male and female side. One side spins around the threads and is tightened by hitting a sledge hammer onto some nubs that make it very tight.

These hoses are connected and disconnected on a frequent basis. Over time the "nubs" you head wear out and get beaten until they cant be used any more. My customer wants a solution to not buying a whole new hose.

I have found a supplier that sells new hammers in two pieces that bolt together. Great problem solved going forward. I just put these on during assembly and they can just replace them when worn out.

My problem is thousands of hoses out in the field currently. They need a way to cut the old single pieces off without damaging the hose. And they want us to provide the service. Great another sale for me. Not I have to figure out how. My first thought was a grinder but that runs the risk of cutting into the hose. What I am thinking now is some type of hydraulic snip to cut it twice and pull it off. Kinda like a small "jaws of life" but I cant seem to find anything.

Give me some thoughts?

Wanted to add a picture of a hammer union, but am unable to due to post count. Sorry. Thanks in advance for any help on what direction to go.

You need 5 posts I think to post images. Make a couple of replies until you get the count up. Then post your photos In This thread

 

[SAvoltage]

It is crimped on. But the sleeve (actually a ferrule) I am wanting to leave alone. I will get some pictures here in a bit. Waiting to hear from Hurst, I'm sure they have never had a request like this.

 

[rlitman]

Something like a BX cutter or ring slitter?

 

[rsanter]

How about invent and make a tool to do it?
You say jaws of life, great. Kind of copy the design a bit and scale it to what you need.
You will be the only one that has that tool, everyone else that could be hired will be a step behind

 

[larry_g]

In my minds eye I see a saw that looks like a radial arm saw. Below the blade is a fixture that you fit the hose end on to secure it. With a good down stop for the saw you could slice the fitting without hitting the hose. This could also be done with a fixture on an old horizontal mill. Or as cheap as an angle grinder with a guard that also sets the depth of cut.

Have you considered manufacturing a ring that could fit over the broken ears and be welded on to replace the ears? You can't post pictures but can you post a link to a catalog page showing the fitting?

lg
no neat sig line

 

[The Cobbler]

....
Have you considered manufacturing a ring that could fit over the broken ears and be welded on to replace the ears? ......

that's what I'm thinking. even a collar with set screws to tighten on to the old collar for a field repair

 

[gungatim]

is this what the fitting looks like? if so may help spur some ideas....