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-   -   20 ton shop press - useful? (https://www.diybanter.com/metalworking/110189-20-ton-shop-press-useful.html)

Grant Erwin June 17th 05 09:14 PM

20 ton shop press - useful?
 
A guy in my area is moving away. He welded up a stout little H-frame press, did
a nice job. He doesn't want to haul it across country, so he sold it to me for
cheap. He balked at letting go of the (import) bottle jack, having vastly
overpaid when he bought it, so I bought it without one. He had an interesting
use model: it has no feet! He had one side of the top fairly tightly chained to
the wall of his shop. When he wanted to use it, he swung it out 90° from the
wall -- the rest of the time, it was right against the wall. Space efficient.

Anyway, now I have to decide whether to keep it or sell it. My local HF store
wants $249 for an equivalent model, not made nearly as stoutly. I'm sure they go
on sale cheaper than that, but whatever, it looks like I could make a few bucks.
I have a Dake No. 3 ratcheting arbor press which will go up to about 5 tons, and
I have a 30 ton ironworker with a 6" press brake attachment which can bend a 90°
into ¼x6" flat bar and of course, punch holes, etc. I do sometimes need to
straighten bent things, and sometimes I consider making something to a press
fit. What do you guys think? How useful is a 20 ton shop press?

Grant Erwin
Kirkland, Washington

Bob Chilcoat June 17th 05 10:27 PM

Grant,

I have a HF 12-ton that I use all the time. I recently scored a 1 ton arbor
press, which is a lot handier for little stuff, but you already have a
bigger one of those. I don't know if a 20-ton is more useful. My guess is
that it would be a lot slower than the 12-ton (which is pretty slow compared
to an arbor press), and therefore a pain for routine use. I've never needed
more than my 12-ton.

--
Bob (Chief Pilot, White Knuckle Airways)


"Grant Erwin" wrote in message
...
A guy in my area is moving away. He welded up a stout little H-frame press,
did a nice job. He doesn't want to haul it across country, so he sold it to
me for cheap. He balked at letting go of the (import) bottle jack, having
vastly overpaid when he bought it, so I bought it without one. He had an
interesting use model: it has no feet! He had one side of the top fairly
tightly chained to the wall of his shop. When he wanted to use it, he swung
it out 90° from the wall -- the rest of the time, it was right against the
wall. Space efficient.

Anyway, now I have to decide whether to keep it or sell it. My local HF
store wants $249 for an equivalent model, not made nearly as stoutly. I'm
sure they go on sale cheaper than that, but whatever, it looks like I
could make a few bucks. I have a Dake No. 3 ratcheting arbor press which
will go up to about 5 tons, and I have a 30 ton ironworker with a 6" press
brake attachment which can bend a 90° into ¼x6" flat bar and of course,
punch holes, etc. I do sometimes need to straighten bent things, and
sometimes I consider making something to a press fit. What do you guys
think? How useful is a 20 ton shop press?

Grant Erwin
Kirkland, Washington




spaco June 17th 05 11:15 PM

I wouldn't be without mine. I have a 20 Ton. The only problem with
the ironworker as a press is that you probably don't have room for 3 or
4 foot tall stuff. I bought the HF 20Ton air powered bottle jack and I
love it. I connected a 1" diameter air cylinder to the oil release knob
and then put valves for both up and down at floor level. It's a great
poor man's hydraulic press.
Other than that, we use it constantly for bending sheet metal. I've
made a couple of different brakes. As a blacksmith, I use it for forge
welding damascus billets. It is just fast enough to get 4 to 5 squeezes
in between reheats. Recently I had to remove 12 flat belt pulleys and
collars from 2 1 7/16" diameter line shafts. A few of them came off
okay, but finally I remembered the press (in another room) and then it
was easy. I want to put mine on casters so I can keep it in my heated
shop.
Pete Stanaitis

Grant Erwin wrote:

A guy in my area is moving away. He welded up a stout little H-frame
press, did a nice job. He doesn't want to haul it across country, so he
sold it to me for cheap. He balked at letting go of the (import) bottle
jack, having vastly overpaid when he bought it, so I bought it without
one. He had an interesting use model: it has no feet! He had one side of
the top fairly tightly chained to the wall of his shop. When he wanted
to use it, he swung it out 90° from the wall -- the rest of the time, it
was right against the wall. Space efficient.

Anyway, now I have to decide whether to keep it or sell it. My local HF
store wants $249 for an equivalent model, not made nearly as stoutly.
I'm sure they go on sale cheaper than that, but whatever, it looks like
I could make a few bucks. I have a Dake No. 3 ratcheting arbor press
which will go up to about 5 tons, and I have a 30 ton ironworker with a
6" press brake attachment which can bend a 90° into ¼x6" flat bar and of
course, punch holes, etc. I do sometimes need to straighten bent things,
and sometimes I consider making something to a press fit. What do you
guys think? How useful is a 20 ton shop press?

Grant Erwin
Kirkland, Washington


Grant Erwin June 17th 05 11:43 PM

spaco wrote:

I wouldn't be without mine. I have a 20 Ton. The only problem with
the ironworker as a press is that you probably don't have room for 3 or
4 foot tall stuff.


You got that one right on the money ..

I bought the HF 20Ton air powered bottle jack and I
love it. I connected a 1" diameter air cylinder to the oil release knob
and then put valves for both up and down at floor level. It's a great
poor man's hydraulic press.


I don't quite understand that part, Pete. It sounds really cool though. Is it
still controllable? I had a 60-ton press once, and I took a 6000 pound
piston-type gauge and put it in when I was bringing it up. I brought the ram
down near the piston, bumped it, still not touching, then did the briefest bump
and completely destroyed it. (I'm hoping it just needs a new 6000# dial gauge --
anybody got one?) Scared the crap out of me -- I sold it to a guy who knows what
he's doing around a big press. Controllable is really important to me. OTOH if
you were punching you'd want a fast powerful stroke to the end, like an
ironworker. Somebody (was it Ernie?) posted about using a 20 ton press for
punching and said everything wound up like a big spring and then when the punch
finally broke through it went BANG and he didn't like it. My ironworker barely
slows down when it's punching and it makes more of a dull click.

I'd really like to understand how you modified the air/hydraulic pump.

Grant

Other than that, we use it constantly for bending sheet metal. I've
made a couple of different brakes. As a blacksmith, I use it for forge
welding damascus billets. It is just fast enough to get 4 to 5 squeezes
in between reheats. Recently I had to remove 12 flat belt pulleys and
collars from 2 1 7/16" diameter line shafts. A few of them came off
okay, but finally I remembered the press (in another room) and then it
was easy. I want to put mine on casters so I can keep it in my heated
shop.
Pete Stanaitis

Grant Erwin wrote:

.. How useful is a 20 ton shop press?



Ernie Leimkuhler June 18th 05 04:11 AM

In article ,
Grant Erwin wrote:

A guy in my area is moving away. He welded up a stout little H-frame press,
did
a nice job. He doesn't want to haul it across country, so he sold it to me
for
cheap. He balked at letting go of the (import) bottle jack, having vastly
overpaid when he bought it, so I bought it without one. He had an interesting
use model: it has no feet! He had one side of the top fairly tightly chained
to
the wall of his shop. When he wanted to use it, he swung it out 90° from the
wall -- the rest of the time, it was right against the wall. Space efficient.

Anyway, now I have to decide whether to keep it or sell it. My local HF store
wants $249 for an equivalent model, not made nearly as stoutly. I'm sure they
go
on sale cheaper than that, but whatever, it looks like I could make a few
bucks.
I have a Dake No. 3 ratcheting arbor press which will go up to about 5 tons,
and
I have a 30 ton ironworker with a 6" press brake attachment which can bend a
90°
into ¼x6" flat bar and of course, punch holes, etc. I do sometimes need to
straighten bent things, and sometimes I consider making something to a press
fit. What do you guys think? How useful is a 20 ton shop press?

Grant Erwin
Kirkland, Washington


20 tons is what mine is.
Install a 20 ton air-over-hydraulic bottle jack and it would be very
useful.

--
"I love deadlines, especially the wooshing sound they make as
they fly by" - Douglas Adams

Peter Grey June 18th 05 05:38 AM


"Ernie Leimkuhler" wrote in message news:ernie-
20 tons is what mine is.
Install a 20 ton air-over-hydraulic bottle jack and it would be very
useful.



I'm going to make a shop press and have been looking at the press on your
sight for inspiration, But... what is an air-over-hydraulic bottle jack?

Peter



BillP June 18th 05 06:13 AM

Peter Grey wrote:
"Ernie Leimkuhler" wrote in message news:ernie-

20 tons is what mine is.
Install a 20 ton air-over-hydraulic bottle jack and it would be very
useful.




I'm going to make a shop press and have been looking at the press on your
sight for inspiration, But... what is an air-over-hydraulic bottle jack?

Peter



An air over hydraulic jack is a compressed air driven jack.
Go to http://harborfreight.com/ and enter "air hydraulic jack" in
the search section and you'll see several examples....
I have and use one in my press and love it!

Bill in phx.

Gunner June 18th 05 09:06 AM

On Fri, 17 Jun 2005 13:14:11 -0700, Grant Erwin
wrote:

A guy in my area is moving away. He welded up a stout little H-frame press, did
a nice job. He doesn't want to haul it across country, so he sold it to me for
cheap. He balked at letting go of the (import) bottle jack, having vastly
overpaid when he bought it, so I bought it without one. He had an interesting
use model: it has no feet! He had one side of the top fairly tightly chained to
the wall of his shop. When he wanted to use it, he swung it out 90° from the
wall -- the rest of the time, it was right against the wall. Space efficient.

Anyway, now I have to decide whether to keep it or sell it. My local HF store
wants $249 for an equivalent model, not made nearly as stoutly. I'm sure they go
on sale cheaper than that, but whatever, it looks like I could make a few bucks.
I have a Dake No. 3 ratcheting arbor press which will go up to about 5 tons, and
I have a 30 ton ironworker with a 6" press brake attachment which can bend a 90°
into ¼x6" flat bar and of course, punch holes, etc. I do sometimes need to
straighten bent things, and sometimes I consider making something to a press
fit. What do you guys think? How useful is a 20 ton shop press?

Grant Erwin
Kirkland, Washington


Ive wished my 15 ton was more powerful at least 2 times this year so
far.

Gunner


"Considering the events of recent years,
the world has a long way to go to regain
its credibility and reputation with the US."
unknown

Eric R Snow June 18th 05 05:03 PM

On Fri, 17 Jun 2005 15:43:19 -0700, Grant Erwin
wrote:

spaco wrote:

I wouldn't be without mine. I have a 20 Ton. The only problem with
the ironworker as a press is that you probably don't have room for 3 or
4 foot tall stuff.


You got that one right on the money ..

I bought the HF 20Ton air powered bottle jack and I
love it. I connected a 1" diameter air cylinder to the oil release knob
and then put valves for both up and down at floor level. It's a great
poor man's hydraulic press.


I don't quite understand that part, Pete. It sounds really cool though. Is it
still controllable? I had a 60-ton press once, and I took a 6000 pound
piston-type gauge and put it in when I was bringing it up. I brought the ram
down near the piston, bumped it, still not touching, then did the briefest bump
and completely destroyed it. (I'm hoping it just needs a new 6000# dial gauge --
anybody got one?) Scared the crap out of me -- I sold it to a guy who knows what
he's doing around a big press. Controllable is really important to me. OTOH if
you were punching you'd want a fast powerful stroke to the end, like an
ironworker. Somebody (was it Ernie?) posted about using a 20 ton press for
punching and said everything wound up like a big spring and then when the punch
finally broke through it went BANG and he didn't like it. My ironworker barely
slows down when it's punching and it makes more of a dull click.

I'd really like to understand how you modified the air/hydraulic pump.

Grant

Other than that, we use it constantly for bending sheet metal. I've
made a couple of different brakes. As a blacksmith, I use it for forge
welding damascus billets. It is just fast enough to get 4 to 5 squeezes
in between reheats. Recently I had to remove 12 flat belt pulleys and
collars from 2 1 7/16" diameter line shafts. A few of them came off
okay, but finally I remembered the press (in another room) and then it
was easy. I want to put mine on casters so I can keep it in my heated
shop.
Pete Stanaitis

Grant Erwin wrote:

.. How useful is a 20 ton shop press?

Grant,
I used to use a 40 ton press with an Enerpac air over oil pump. It was
very controllable as you could throttle the air. So when straightening
shafts in the press it could be moved in .001 increments. This is the
best feature of a hydraulic press. If you buy an air over oil pump
from HF it may be that they are as controllable. If so, then that
press could be very handy. Like pressing bearings in or out. Being
able to slowly move the ram saves parts. And fingers. If the air is
throttled, instead of just lowering the pressure, the pressure will be
the same but the ram will move slowly. If you also regulate the air
pressure then the ultimate force can be whatever you want.
Eric


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