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Default What parts can I save from a scrap injection molder?

I am purchasing a 500-ton (clamping force) injection molder made in
Japan, as scrap machinery. Weight appx. 50,000 lbs. I wonder, however,
what parts from it can I save that can be actually resold.

For example:

- 50 HP hydraulic pumps
- Clamp cylinder (a huge hydraulic cylinder)
- Hydraulic valves

While they seem attractive, I doubt that I will ever find a buyer for
those. Any other ideas?

i
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Ignoramus30385 fired this volley in
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I am purchasing a 500-ton (clamping force) injection molder made in
Japan, as scrap machinery. Weight appx. 50,000 lbs. I wonder, however,
what parts from it can I save that can be actually resold.


What's the size, compression ratio, volume, and condition of the screw and
housing (and heater and screw motor)?

Lloyd
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Ignoramus30385 fired this volley in
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I am purchasing a 500-ton (clamping force) injection molder made in
Japan, as scrap machinery. Weight appx. 50,000 lbs. I wonder, however,
what parts from it can I save that can be actually resold.


I should have added, that screws and housings in good condition are quite
valuable, not only intrinsically, but because they are "refurbishable" less
expensively than new, and end up in brand new condition afterwards.

Lloyd
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Default What parts can I save from a scrap injection molder?

On 2014-06-06, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
Ignoramus30385 fired this volley in
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I am purchasing a 500-ton (clamping force) injection molder made in
Japan, as scrap machinery. Weight appx. 50,000 lbs. I wonder, however,
what parts from it can I save that can be actually resold.


What's the size, compression ratio, volume, and condition of the screw and
housing (and heater and screw motor)?


Lloyd, I honestly do not know. I know that it is old.

i
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Ignoramus30385 fired this volley in
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Lloyd, I honestly do not know. I know that it is old.


Offer the screw, housing, heater, and maybe the screw drive motor to an
injection screw rebuilder. They'll pay more than scrap for it, even if
it's not a lot.

Lloyd


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Default What parts can I save from a scrap injection molder?

On Thu, 05 Jun 2014 20:23:04 -0500, Ignoramus30385
wrote:

I am purchasing a 500-ton (clamping force) injection molder made in
Japan, as scrap machinery. Weight appx. 50,000 lbs. I wonder, however,
what parts from it can I save that can be actually resold.

For example:

- 50 HP hydraulic pumps
- Clamp cylinder (a huge hydraulic cylinder)
- Hydraulic valves

While they seem attractive, I doubt that I will ever find a buyer for
those. Any other ideas?

i


The straining rods are 4140. I've made many parts out of press
straining rods. Not positive, but I bet the plattens are 4140 also.

Is it old enough to have timer relays? I guess not worth much, but
they are built for 10,000,000s of cycles.

LOTS of hydraulic parts,

Karl

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On 2014-06-06, Karl Townsend wrote:
The straining rods are 4140. I've made many parts out of press
straining rods. Not positive, but I bet the plattens are 4140 also.


This is a great idea.

i
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On 6/5/2014 6:23 PM, Ignoramus30385 wrote:
I am purchasing a 500-ton (clamping force) injection molder made in
Japan, as scrap machinery. Weight appx. 50,000 lbs. I wonder, however,
what parts from it can I save that can be actually resold.

For example:

- 50 HP hydraulic pumps
- Clamp cylinder (a huge hydraulic cylinder)
- Hydraulic valves

While they seem attractive, I doubt that I will ever find a buyer for
those. Any other ideas?

i

If the heat exchanger is still good, you might be able to find an
interested party.

Paul
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Default What parts can I save from a scrap injection molder?

On 6/5/2014 8:23 PM, Ignoramus30385 wrote:
....

- 50 HP hydraulic pumps
- Clamp cylinder (a huge hydraulic cylinder)
- Hydraulic valves

While they seem attractive, I doubt that I will ever find a buyer for
those. Any other ideas?


What does it hurt other than just a little time? I'd think the
hydraulics wouldn't be very hard at all to get rid of. How big is
"huge" on the cylinder? Altho the distance is an issue.

--


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On 2014-06-06, Paul Drahn wrote:
On 6/5/2014 6:23 PM, Ignoramus30385 wrote:
I am purchasing a 500-ton (clamping force) injection molder made in
Japan, as scrap machinery. Weight appx. 50,000 lbs. I wonder, however,
what parts from it can I save that can be actually resold.

For example:

- 50 HP hydraulic pumps
- Clamp cylinder (a huge hydraulic cylinder)
- Hydraulic valves

While they seem attractive, I doubt that I will ever find a buyer for
those. Any other ideas?

i

If the heat exchanger is still good, you might be able to find an
interested party.


I spent all day working on it to get it ready for moving, and parting
out.

Here's what I have decided to take:

1) Two hydraulic pumps 30 an 37 kW
2) Hydraulic heat exchanger
3) Two hydraulic cylinders, one operating the clamp or die, another one
operating the feed screw
4) Miscellaneous steel bars for making those infamous "welding tables".
5) (not decied yet) Maybe I will take the hydraulic motor that runs
the feed screw.

Any thoughts on this last one?



i


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On 2014-06-06, dpb wrote:
On 6/5/2014 8:23 PM, Ignoramus30385 wrote:
...

- 50 HP hydraulic pumps
- Clamp cylinder (a huge hydraulic cylinder)
- Hydraulic valves

While they seem attractive, I doubt that I will ever find a buyer for
those. Any other ideas?


What does it hurt other than just a little time? I'd think the
hydraulics wouldn't be very hard at all to get rid of. How big is
"huge" on the cylinder? Altho the distance is an issue.


140mm piston diameter, appx 3 feet stroke,
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"Ignoramus8186" wrote in message
...
5) (not decied yet) Maybe I will take the hydraulic motor that runs
the feed screw.

Any thoughts on this last one?


What kind of shaft does it have?

I bought a used involute-splined hydraulic pump cheap and then had to
machine a matching broach to mount a pulley on it. Surplus Center
didn't have anything that would fit.

-jsw


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"Ignoramus8186" wrote in message
...
On 2014-06-06, dpb wrote:

What does it hurt other than just a little time? I'd think the
hydraulics wouldn't be very hard at all to get rid of. How big is
"huge" on the cylinder? Altho the distance is an issue.


140mm piston diameter, appx 3 feet stroke,


That'll split some big firewood!

-jsw


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Ignoramus8186 fired this volley in
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140mm piston diameter, appx 3 feet stroke,


Ig, that's barely a healthy log splitter cylinder. That's not only NOT
'huge', it's not even a moderately-sized cylinder. A lot of DIY guys would
find use for a cylinder that _small_.

Lloyd
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On Fri, 06 Jun 2014 15:30:20 -0500, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote:

Ignoramus8186 fired this volley in
m:

140mm piston diameter, appx 3 feet stroke,


Ig, that's barely a healthy log splitter cylinder. That's not only NOT
'huge', it's not even a moderately-sized cylinder. A lot of DIY guys would
find use for a cylinder that _small_.

Lloyd



That's too small a cylinder for 500 ton, unless its a toggle press.

Karl



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Karl Townsend fired this volley in
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That's too small a cylinder for 500 ton, unless its a toggle press.


Most of the smaller ones were toggle types to speed closing, minimize
closing pressure until the top half of the mold got close, and to
maximize closing force with the smallest hydraulics possible.

I haven't been involved in any injection molding for over 15 years, so I
don't know how the newer presses are built.

We had a line of four vertical presses, different brands, all toggle
types. The one horizontal press we had was Japanese, and straight
hydraulic ram closing. It was SLOWWWWW!

LLoyd
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"Karl Townsend"
That's too small a cylinder for 500 ton, unless
its a toggle press.

Karl


36 tons @ 3000 lbs



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On 2014-06-06, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
Ignoramus8186 fired this volley in
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140mm piston diameter, appx 3 feet stroke,


Ig, that's barely a healthy log splitter cylinder. That's not only NOT
'huge', it's not even a moderately-sized cylinder. A lot of DIY guys would
find use for a cylinder that _small_.


OK, I agree with you. I worked a lot today -- felt great all day like
a 25 year old -- and one of the things that I did was I took of the
end nut from that hydraulic cylinder.

i
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On 2014-06-06, Karl Townsend wrote:
On Fri, 06 Jun 2014 15:30:20 -0500, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote:

Ignoramus8186 fired this volley in
om:

140mm piston diameter, appx 3 feet stroke,


Ig, that's barely a healthy log splitter cylinder. That's not only NOT
'huge', it's not even a moderately-sized cylinder. A lot of DIY guys would
find use for a cylinder that _small_.

Lloyd



That's too small a cylinder for 500 ton, unless its a toggle press.


It has mechanical clamping.

i
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On 2014-06-06, Jim Wilkins wrote:
"Ignoramus8186" wrote in message
...
On 2014-06-06, dpb wrote:

What does it hurt other than just a little time? I'd think the
hydraulics wouldn't be very hard at all to get rid of. How big is
"huge" on the cylinder? Altho the distance is an issue.


140mm piston diameter, appx 3 feet stroke,


That'll split some big firewood!


Maybe I should build a nice log splitter from all the crap I have
laying around, and sell it. I have pretty much everything.

i


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Ignoramus8186 fired this volley in
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Maybe I should build a nice log splitter from all the crap I have
laying around, and sell it. I have pretty much everything.


They're simple and fast to build. If I ever re-do mine, I'll add a
vertical/horizontal tilt feature, and a log cradle. It's getting harder
to lift the big cutoffs. It'll split 20" diameter oak without a strain,
but lifting that big a piece up onto the rail is a strain.

I'll probably put a good Kawasaki or Honda on it, too, instead of that
clanking old Briggs.

Lloyd
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"Ignoramus8186" wrote in message
...

Maybe I should build a nice log splitter from all the crap I have
laying around, and sell it. I have pretty much everything.

i


Product liability insurance? Don't forget all the saftey warning stickers.

Best Regards
Tom.


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On 2014-06-06, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
Ignoramus8186 fired this volley in
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Maybe I should build a nice log splitter from all the crap I have
laying around, and sell it. I have pretty much everything.


They're simple and fast to build. If I ever re-do mine, I'll add a
vertical/horizontal tilt feature, and a log cradle. It's getting harder
to lift the big cutoffs. It'll split 20" diameter oak without a strain,
but lifting that big a piece up onto the rail is a strain.

I'll probably put a good Kawasaki or Honda on it, too, instead of that
clanking old Briggs.


Sounds great. We did make a hydraulic unit for our beavertail semi
trailer, by repowering an electric hydraulic pump with a Honda GX160
gasoline motor. Works great now. Log splitter is something very
similar.

i
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On 2014-06-06, Howard Beal NSA wrote:

"Ignoramus8186" wrote in message
...

Maybe I should build a nice log splitter from all the crap I have
laying around, and sell it. I have pretty much everything.


Product liability insurance? Don't forget all the saftey warning stickers.


I do not have to say that I made it

i
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On Fri, 6 Jun 2014 15:47:45 -0700, "Howard Beal" wrote:


"Ignoramus8186" wrote in message
m...

Maybe I should build a nice log splitter from all the crap I have
laying around, and sell it. I have pretty much everything.

i


Product liability insurance? Don't forget all the saftey warning stickers.


Yeah, if you ever do build and sell one of those, don't ever tell
anyone you made it. "It came in an auction lot, your Honor."

--
It is characteristic of all deep human problems that they are
not to be approached without some humor and some bewilderment.
-- Freeman Dyson


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On Fri, 06 Jun 2014 15:41:25 -0500, Karl Townsend
wrote:

On Fri, 06 Jun 2014 15:30:20 -0500, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote:

Ignoramus8186 fired this volley in
om:

140mm piston diameter, appx 3 feet stroke,


Ig, that's barely a healthy log splitter cylinder. That's not only NOT
'huge', it's not even a moderately-sized cylinder. A lot of DIY guys would
find use for a cylinder that _small_.

Lloyd



That's too small a cylinder for 500 ton, unless its a toggle press.


Huh? I see splitters on sale which are only 5T to 42T ($7k)
Where the hell did 500T come from, Karl? That _would_ be a large
splitter. "Add 16 stumps and press button for 128 splits of wood."
I love the automatics, which drag the log into the splitter, cut it as
precise length, then split to 8pcs per round...every 5 seconds.
http://www.liveleak.com/view?i=076_1340766333

--
It is characteristic of all deep human problems that they are
not to be approached without some humor and some bewilderment.
-- Freeman Dyson
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Q: What parts can I save from a scrap injection molder?
A: All of them.

Now, the better question is "Which ones _should_ you save?" to
which the answer is "the working or useful bits".
--
pyotr filipivich
"With Age comes Wisdom. Although more often, Age travels alone."
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On Fri, 06 Jun 2014 21:42:53 -0700, Larry Jaques
wrote:

On Fri, 06 Jun 2014 15:41:25 -0500, Karl Townsend
wrote:

On Fri, 06 Jun 2014 15:30:20 -0500, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote:

Ignoramus8186 fired this volley in
news:3dydnXwVG6aAhg_OnZ2dnUVZ_t6dnZ2d@giganews. com:

140mm piston diameter, appx 3 feet stroke,

Ig, that's barely a healthy log splitter cylinder. That's not only NOT
'huge', it's not even a moderately-sized cylinder. A lot of DIY guys would
find use for a cylinder that _small_.

Lloyd



That's too small a cylinder for 500 ton, unless its a toggle press.


Huh? I see splitters on sale which are only 5T to 42T ($7k)
Where the hell did 500T come from, Karl? That _would_ be a large
splitter. "Add 16 stumps and press button for 128 splits of wood."
I love the automatics, which drag the log into the splitter, cut it as
precise length, then split to 8pcs per round...every 5 seconds.
http://www.liveleak.com/view?i=076_1340766333


I thought maybe Iggy quoted the cylinder size wrong. A 500 ton
conventional press has a HUGE cylinder diameter with maybe a 7" push
rod. Iggy said in anther part of this thread that its a toggle press.
This style used a small cylinder (like 7") pushing on a "knee" to
provide a huge mechainical leverage and get the 500 ton force. Iggy's
press is not real old, toggles showed up in the 1980s.

Karl

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"Ignoramus8186" wrote in message
...
On 2014-06-06, Jim Wilkins wrote:
"Ignoramus8186" wrote in
message
...
On 2014-06-06, dpb wrote:

What does it hurt other than just a little time? I'd think the
hydraulics wouldn't be very hard at all to get rid of. How big
is
"huge" on the cylinder? Altho the distance is an issue.

140mm piston diameter, appx 3 feet stroke,


That'll split some big firewood!


Maybe I should build a nice log splitter from all the crap I have
laying around, and sell it. I have pretty much everything.

i


Log splitters use a special 'detent' valve that will stay latched in
the retract position until oil pressure rises when the piston bottoms,
but requires a hand on the lever to advance. Usually they have a
two-stage pump that shifts to lower flow at higher pressure when the
resistance rises.
http://science.howstuffworks.com/tra...hydraulic2.htm
-jsw


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