What's new
What's new

ZEH & HAHNEMANN Co. Interesting friction drive press

Hit Miss Engine

Cast Iron
Joined
Dec 4, 2008
Location
PA. USA
I was visiting a good collector friend this weekend and couldn't help take a few pictures of a beautiful press... Made by the ZEH & HAHNEMANN CO. In Newark New Jersey. I have never seen another like it...the horizontal wheel up top is line with leather which engages the rotating dics that drive the main screw.. I wish the machine was a little smaller because I would have tried to take it home.. maybe someone else has seen one before? I will add a few pics ..Enjoy

Sorry about the view...Not sure why the pictures are coming in sideways?
 

Attachments

  • 2.jpg
    2.jpg
    75.2 KB · Views: 509
  • thumbnail_image3.jpg
    thumbnail_image3.jpg
    73.9 KB · Views: 427
  • thumbnail_image4.jpg
    thumbnail_image4.jpg
    91.8 KB · Views: 354
  • thumbnail_image1.jpg
    thumbnail_image1.jpg
    88.5 KB · Views: 489
It seems unusual to use friction drive, which can slip, on a press. Is this a special purpose press in which slippage at high torque is wanted to avoid damage resulting from overpressure?

-Marty-
 
It seems unusual to use friction drive, which can slip, on a press. Is this a special purpose press in which slippage at high torque is wanted to avoid damage resulting from overpressure?

-Marty-
Marty, I was wondering that myself...I do not know the exact purpose of this press...from the size of the screw it still looks like it would put out some serious pressing power.
 
My great grandfather built these kind of presses in Newark, NJ. The factory building still stands in Newark. I believe Friction drive presses were used for forging cutlery, small tools such as dental/hospital tools, and brass parts. I'll see if I can upload some photos tomorrow. The horizontal wheel actually has a leather band around it.

Here is one in action

Friction Screw Press Forging Tong Reins With Induction Forge - YouTube
 
Notice the feature of that one, and the OP's pictured one....

As the ram goes down, the wheel speeds up. So it is like any flywheel press, using the fairly heavy wheel to do a semi-impact forging process. The energy in the spinning wheel goes into the "squeeze" as the dies close.

Gets a stronger stroke from a fairly weak drive.
 
Looks like the friction drive setup on my little Snapper riding mower. I've had this thing for 40 years and have changed the rubber friction drive wheel twice.

Stuart
 
I have seen pictures of presses like that used in the manufacture of jewelry.
 
I know a few blacksmiths in the midwest who have these. They are great for small hot forging. I think they were indeed used for small scale cold and hot forming- I remember being told one of em came out of a place that did small scale sheet metal forming with it. This type of powered mechanical press is pretty common in asia- in both Japan and Korea, they are common in small shops. I had a friend who brought over a container of them for Korea, and sold them to blacksmiths in the PNW.
 

A good acount of an interesting machine. Thanks, Ray. So it's a hammer, or embosser, more than a press in the usual sense. I was interested in the reversing feature, and in the fact that friction drive slippage was intentional "before damage is done to the machine" in cases of blockage or other problems.

Looking again at the OP photographs, this is a larger machine than I originally thought. I can see why one might not want to lug it home. Maybe a good thing. Also interesting, from the above comments, that this machine, about which my first thought was that it is functionally obsolete, is still useful in some quarters.

-Marty-
 
With that coarse thread and heavy flywheel it looks like a powered version of a fly press. Never had one and never used one but I understand the fly press used the inertia of the handwheel or weighted arm to do its work.
 
Glad to run across this thread, as I just picked one of these machines today! Looking forward to getting it back up and running, as well as putting it back to work!
 

Attachments

  • 20180817_125257.jpg
    20180817_125257.jpg
    95.4 KB · Views: 135
  • 20180817_125303.jpg
    20180817_125303.jpg
    94.5 KB · Views: 148
  • 20180817_165813.jpg
    20180817_165813.jpg
    93.4 KB · Views: 133
  • 20180817_165820.jpg
    20180817_165820.jpg
    95.8 KB · Views: 109
  • 20180817_165828.jpg
    20180817_165828.jpg
    92.9 KB · Views: 168
Not sure why the pics got rotated, cannot seem to fix them.....
 

Attachments

  • 20180817_125257.jpg
    20180817_125257.jpg
    95.4 KB · Views: 49
a powered version of a fly press.
Many millions of small parts are formed using fly presses allover the world, the OBI of it's day, still very popular in the orient I believe.
This thing goes farther, an accelerated flywheel, whole lotta kinetic energy there.
 
Boa tarde!
Ainda hoje usamos esse tipo de prensa. A nossa é uma N0.8.1/2.
 

Attachments

  • IMG_20230915_120836632.jpg
    IMG_20230915_120836632.jpg
    2.1 MB · Views: 20
  • IMG_20230915_120844679_HDR.jpg
    IMG_20230915_120844679_HDR.jpg
    1.9 MB · Views: 20
  • IMG_20230915_120850941.jpg
    IMG_20230915_120850941.jpg
    2.9 MB · Views: 18
  • IMG_20230915_120900773.jpg
    IMG_20230915_120900773.jpg
    3.1 MB · Views: 18
  • IMG_20230915_120917987_HDR.jpg
    IMG_20230915_120917987_HDR.jpg
    2.1 MB · Views: 16
  • IMG_20230915_120927690_HDR.jpg
    IMG_20230915_120927690_HDR.jpg
    1.9 MB · Views: 16
  • IMG_20230915_120944394_HDR.jpg
    IMG_20230915_120944394_HDR.jpg
    3.2 MB · Views: 16
  • IMG_20230915_120955031.jpg
    IMG_20230915_120955031.jpg
    2 MB · Views: 15
  • IMG_20230915_121005976_HDR.jpg
    IMG_20230915_121005976_HDR.jpg
    2.8 MB · Views: 19
thats what blacksmiths would call a powered, or motorized, fly press. I know a several blacksmiths who have one of those. There is a taller, skinnier version that was, I believe, from the automotive industry, used for making smaller sheet metal stampings. I have seen one in Philly and one in Illinois. Blacksmiths like them for punching, and stamping work, hot, where you are doing small quantities, but the ability to locate tooling accurately while working is important.
I have a now deceased friend who imported a few from Korea, maybe 20 years ago. They are pretty common in Korea, for small shops. He had a 100 ton version in his shop, and he used it to make tooling for blacksmithing- He made texture dies for power hammers, he made thousands of parts on a machine like this. He had a forge with a motorized rotary table under the floor, so he could put in one tool steel blank, hit the foot pedal and rotate the table one position, which in turn would place a nice orange hot blank which had been in the forge for a while, in front of the door. Grab the hot one with tongs, swivel his body and place it in the press like this, hit the foot pedal for the press, and it gets 100 tons of pressure. swivel his body the other way, drop it in the oil quench tank, and back to the forge. He could make a hundred parts in an hour.
Fly presses are just manual versions of these, and metalworkers all over europe have been using them for centuries for stampings, jewelry, bending parts, punching, and more.
 
I was visiting a good collector friend this weekend and couldn't help take a few pictures of a beautiful press... Made by the ZEH & HAHNEMANN CO. In Newark New Jersey. I have never seen another like it...the horizontal wheel up top is line with leather which engages the rotating dics that drive the main screw.. I wish the machine was a little smaller because I would have tried to take it home.. maybe someone else has seen one before? I will add a few pics ..Enjoy

Sorry about the view...Not sure why the pictures are coming in sideways?
I was visiting a good collector friend this weekend and couldn't help take a few pictures of a beautiful press... Made by the ZEH & HAHNEMANN CO. In Newark New Jersey. I have never seen another like it...the horizontal wheel up top is line with leather which engages the rotating dics that drive the main screw.. I wish the machine was a little smaller because I would have tried to take it home.. maybe someone else has seen one before? I will add a few pics ..Enjoy

Sorry about the view...Not sure why the pictures are coming in sideways?
 
These are very fine presses for deep drawing as they don't have the complication of a hydraulic press and don't get deadlocked like a flywheel/crank press. In the flywheel/crank common OBI press it is not uncommon for the press to lock up near the bottom of the stroke which forces the lubricant out of the crank journals. They are usually opened by reversing the wiring on the three phase drive motor or heating the frame of the press with very big torches. Percussion presses, however, are a challenge to move as they are very top heavy with an nice small base. I would advise removing the flywheel and re-installing it after the press is bolted to the concrete floor.
 








 
Back
Top