Metal Shear question: Niagara
 

At work we just set up an older Mechanical metal shear. It is a
Niagara 1/4" capacity 8 foot model 88. So.. I call up Bliss clearing
Niagara and ask for a manual. While I am on the phone I say " Please
tell me that I am not spending $150 for 20 pages of generic safety BS
and 2 pages of documentation" the sales weasel assures me that will not
be the case. 10 days later a beutiful two inch binder arrives. 25 pages
of inapplicable warnings, 10 pages of redundant shear safety stuff and
oh yes 6 pages of part numbers and drawings, two of which are to the
wrong machine. I call them up and ask where the rest is and they say
thats it. So wise guy I am I ask whatabout the Lubrication chart,
lube specification sheet, operation instructions, maintenace
information and setup information. Not available. Next question is it a
coincedance that the only information available are the parts that you
can sell me instead of useful information? Of course not.

SORRY ABOUT THE TIRADE. Question: Since Aluminum has basically 1/2 the
shear strength of mild steel what about the shear capacity of Aluminum
on this machine? Think I need to adjust the shear blade clearance also,
I guess I will consult my manual. Right.....

In article .com,
Greg wrote:

At work we just set up an older Mechanical metal shear. It is a
Niagara 1/4" capacity 8 foot model 88. So.. I call up Bliss clearing
Niagara and ask for a manual. While I am on the phone I say " Please
tell me that I am not spending $150 for 20 pages of generic safety BS
and 2 pages of documentation" the sales weasel assures me that will not
be the case. 10 days later a beutiful two inch binder arrives. 25 pages
of inapplicable warnings, 10 pages of redundant shear safety stuff and
oh yes 6 pages of part numbers and drawings, two of which are to the
wrong machine. I call them up and ask where the rest is and they say
thats it. So wise guy I am I ask whatabout the Lubrication chart,
lube specification sheet, operation instructions, maintenace
information and setup information. Not available. Next question is it a
coincedance that the only information available are the parts that you
can sell me instead of useful information? Of course not.

SORRY ABOUT THE TIRADE. Question: Since Aluminum has basically 1/2 the
shear strength of mild steel what about the shear capacity of Aluminum
on this machine? Think I need to adjust the shear blade clearance also,
I guess I will consult my manual. Right.....


A cinicinatti field service tech could probably help you more than
anybody.

I ran a half inch hydraulic shear years ago and its rating was quarter inch
for stainless and 5/8 for aluminum. I would expect your maximum capacity
would be 5/16 for aluminum. You might be able to hear 3/8 but that would be
maximum in my opinion. It also would depend on what alloy.
Randy
"Greg" wrote in message
oups.com...
At work we just set up an older Mechanical metal shear. It is a
Niagara 1/4" capacity 8 foot model 88. So.. I call up Bliss clearing
Niagara and ask for a manual. While I am on the phone I say " Please
tell me that I am not spending $150 for 20 pages of generic safety BS
and 2 pages of documentation" the sales weasel assures me that will not
be the case. 10 days later a beutiful two inch binder arrives. 25 pages
of inapplicable warnings, 10 pages of redundant shear safety stuff and
oh yes 6 pages of part numbers and drawings, two of which are to the
wrong machine. I call them up and ask where the rest is and they say
thats it. So wise guy I am I ask whatabout the Lubrication chart,
lube specification sheet, operation instructions, maintenace
information and setup information. Not available. Next question is it a
coincedance that the only information available are the parts that you
can sell me instead of useful information? Of course not.

SORRY ABOUT THE TIRADE. Question: Since Aluminum has basically 1/2 the
shear strength of mild steel what about the shear capacity of Aluminum
on this machine? Think I need to adjust the shear blade clearance also,
I guess I will consult my manual. Right.....

I ran a half inch hydraulic shear years ago and its rating was quarter
inch
for stainless and 5/8 for aluminum. I would expect your maximum
capacity
would be 5/16 for aluminum. You might be able to hear 3/8 but that
would be
maximum in my opinion. It also would depend on what alloy.
Randy


"Greg" wrote in message


oups.com...


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At work we just set up an older Mechanical metal shear. It is a
Niagara 1/4" capacity 8 foot model 88. So.. I call up Bliss clearing
Niagara and ask for a manual. While I am on the phone I say " Please
tell me that I am not spending $150 for 20 pages of generic safety BS

and 2 pages of documentation" the sales weasel assures me that will
not
be the case. 10 days later a beutiful two inch binder arrives. 25
pages
of inapplicable warnings, 10 pages of redundant shear safety stuff
and
oh yes 6 pages of part numbers and drawings, two of which are to the
wrong machine. I call them up and ask where the rest is and they say
thats it. So wise guy I am I ask whatabout the Lubrication chart,
lube specification sheet, operation instructions, maintenace
information and setup information. Not available. Next question is it
a
coincedance that the only information available are the parts that
you
can sell me instead of useful information? Of course not.

SORRY ABOUT THE TIRADE. Question: Since Aluminum has basically 1/2
the
shear strength of mild steel what about the shear capacity of
Aluminum
on this machine? Think I need to adjust the shear blade clearance
also,
I guess I will consult my manual. Right.....

The shear does have a capacity plate which say 7/32" in stainless,
1/4" in steel. The Aluminum alloy I would be shearing is mostly 6061
T6.

I always used the figures of 50,000 pounds for steel shear strength.
(have seen it listeed as 60,000 also)
and 30,000 pounds for 6061 T6.

I think I might need more shear clearance (Knife clearance) for heavier
material though. I will look it up in my manual. Oh ya... not
available. Anyone have any experience with that company machinery
manuals?

I have similar quesitons on my diacro 12 inch shear.
All I know is 1/16 mild steel.

What are its capabilities in 304 SS, aluminum and brass ?

I tried 20 gauge (0.036) SS and it cut it ok, but that lever
pulled pretty darn hard. I have never tried 1/16 mild steel;
maybe that would be a good comparison.

Machinery manuals had the complete REAL manual on file, I just
purchased it for $50 less than Bliss Clearing Niagara's manual. I will
let you know about capacity when I get it.