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cam m
06-17-2005, 10:17 AM
Hi all

I looked around the show room at the local industrial tool store when I picked up my lathe and drooled over all the shiny new Ironworkers sitting there. I can't justify the $7K for one, but have seen small manual shears for rod and bar. Where could I source the material for the shear blades to make a shear using a hydraulic cylinder or 20 T press? Any suggestions for guides? I'm only interested in capacity of 3/8" x 3" max and usually work in 1/4" or lighter.

Cam

[This message has been edited by cam m (edited 06-17-2005).]

ibewgypsie
06-17-2005, 06:19 PM
Howdy..
Whitney?
Rod shears, Angle shears come onto ebay, usually about $100, thou I have seen the last few go to $200 plus shipping. You use a 6 foot handle. I have a angle shear I got at auction, I plan on mounting it on a 2x2 to slide into a trailer reciever to shear angle on the jobs. It will cut 1/4", the same as my ironworker.

A open throat shear (Beverly?) can cut flat stock pretty easy too. Some of them are about $200 from the oriental supply, thou I'd wait on a better deal on a used one.

A ironworker is pretty nice, I still keep getting outbid on the piranaha models. One of them (35ton) are $6500 quoted to me in 2001. I have a very old and very small scotchman-dvorak I bought at auction.
What's so nice about it is you can put it up into a truck bed or onto a welding trailer and run it off'n 120.

All the punches, blades, can be purchased for a little more than the stock will cost you. I think cleveland tool sells them all.

It's your money, I suggest you shop wisely.

David

[This message has been edited by ibewgypsie (edited 06-17-2005).]

Ries
06-18-2005, 11:08 AM
As mentioned, Cleveland punch and die sells replacement blades for most ironworkers.
But given the tonnages involved, you better be sure you know what you are doing as far as building a small tool set for cutting round bar. 1" round mild steel likes at least 40 tons of power to cut it.
There are several brands of ironworker that use an open tooling bay design, so they have separate bar shear modules that just fit right in. You could use one of these with a hydaulic press.

Scotchman used this design on their smaller machines, and so they sell several nifty little modules- it will cut square, round, and angle. It is all engineered, built from the proper materials, and properly heat treated to last a long time, for thousands of cuts. The problem from your point of view is cost- they run about a grand. This is probably a reasonable price, considering what goes into making them, but its still a lot of money.
http://www.scotchman.com/tooling_options.php

Northern Hydraulics, or whatever they call themselves now, sell a rinky dink cheapo ironworker that also uses modular tooling, and their shear module is cheaper, but I am sure you get what you pay for.
http://www.northerntool.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=6970&productId=476&R=476

In the old days, you could buy hand operated "rod parters" these were lever operated tools to cut round bar. Marvel, Di-Acro, Roper Whitney and Pexto all made them, usually only up to about 5/8" round, which is plenty big for a hand operated tool. They turn up used from time to time, often cheap.
http://www.diacro.com/RodParter.htm

In the really old days, there were entire hand operated ironworkers- Buffalo made some really cool ones around the turn of the century- I have old catalog pics- with punches, shears, and rod shears built in. Most long since melted down to make battleships. The germans still make tools like these- but they cost a lot- they are simple, elegant, and well made, but most people have electricity, and most americans refuse to pay german prices anyway. Mubea used to make these, before they got broken up, but somebody in germany still makes em, and Glazer will get you one here in the USA if you are willing to pay the $2500 or so, plus shipping.
http://img.photobucket.com/albums/v132/rniemi/glasershear.jpg

ibewgypsie
06-18-2005, 07:58 PM
http://pic6.picturetrail.com/VOL168/1702419/4364630/97592928.jpg

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=12578&item=7523414670&rd=1&ssPageName=WDVW
ebay auction..

He wants too much.. I gave I think $35 or $40 for the one I have exactly like this one. No it's not for sale.

I suggest everyone here with as little money as I have to get thier fix on someone elses auctioned items... Just elbow right on in there and tell em what you'll give for it.. and stand by your last thought on high-bid.. DOn't get excited or mad.. Thou I do give out dirty looks.. Ha..

A decent press will push quite a few tons.. use a fulcrum to up the mechanical advantage and there you are.. Figuring the 300lbs I hang on the whitney angle shear on a 6 foot bar = 1800 foot pounds delivered into the gear reduction of the shear.. It is most of my weight to shear 1/4" with a sharp blade. No clue what all you lightweight guys do? But imagine my knees and what the cartilidge looks like..

David http://bbs.homeshopmachinist.net//biggrin.gif

cam m
06-20-2005, 10:40 AM
Hi All

Thanks for the replies. I blew this year's (and next year's) tool budget already, so as a result, I'm limited to what I can afford. Shearing material is so much quieter and cleaner than chop sawing that I thought I'd look into it. I did see a large electric/hydraulic press with modular tooling at a local farm show a while ago. At 50 T it was very capable, but was more expensive than the equivalent iron worker. Looks like the best thing to do is to watch the auctions...

Cam