This seems on topic, though perhaps just inside the boundaries:
How is chain link fencing manufactured? I've been trying to imagine the
machinery they use, and I've tried poking around with Google to find out.
-- M. Powell
I'd like to see how they make chiken wire myself.
I can see how they make chinlink. Have a die that stamps or forms a
coil of wire into the continuous zzzzzzzzzzzz's, cut to lenght.
ANother machine that turns these pieces into each other forming a
woven interlocking fence.
But how do they form the twists on chicken wire at all those
connections is what I would like to know.
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Chicken wire is woven with the spools doing turns around each other. Just a
big ol' machine doing one simple little chore for a long time. Check the
way that things are wound and you can then see the paths that the individual
rolls of wire have to go.
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Right down my alley
There is a fixed die that is threaded on the inside to match the pitch
and diameter of the outside of each picket of chain link fencing to be
made. Within this fixed die is a spinning blade that matches the inside
profile of the fence picket (look down the end of the fence picket and
you'll see the shape). After the die is threaded, the blade spins at
about 1000 rpm and a fence picket is spit out the other end (the whole
die section is about 6 inches long). The pickets are cut automatically
using a pneumatic shear.
And it gets more complicated....as one picket is spit out, it
automatically winds itself into an existing picket. this forms a
continuous fence which is automatically rolled. Also, after the pickets
are wound together the wire ends are treated before rolling. This
treatment may be twisting and left pointed for security (ouch to climb
over) or bent over....again, the edge is done automatically.
It's a little more complicated than this as the pickets that are formed
need to lay flat when finished rather than having a twist, and stuff
like that. in practice, the forming machines are effectively CNC
We make miles of similar stuff each year. Only ours tends to have an
opening of .1" rather than 2" and is used for conveyors.
M Powell wrote:
Most chain link fencing contractors of any size purchase raw wire and make
the fabric on site. My local supplier has a unit in his yard under an
overhang but I have never seen it in operation.
I have wished that I had access to that yard when it was running but I
have not lucked out so far.
Sorry was out of town and should have posted this link in my first reply.
Bergandi is about the opnly US manufacturer left of chain link weaving
machines. I didn't delve deeper into the site to see if there was more
detailed information but at least there is a photo.
M Powell wrote: