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#123803 - 05/12/06 07:05 PM Mega-Shredder
Trumpy Offline


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Registered: 07/05/02
Posts: 8211
Loc: SI,New Zealand
Photo's and info submitted by Alan Nadon:

Quote:
They are pictures of the largest metal shredder in America.
The machine is 500 feet long and four stories high.
The primary service is 138 KV, 400 amp.
It steps down to 4,160 V for the different parts.
The major drive motor is 7,000 Hp
It shreds whole automobiles, tires and all, at the rate of six a minute or 16,000 a week.
The residue is sorted by blowers and electromagnets for salvage.
It is the largest project that I have ever had the opportunity to inspect.
They started the project last fall and it is now in operation.














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#123804 - 05/12/06 09:42 PM Re: Mega-Shredder
Scott35 Offline

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Registered: 10/19/00
Posts: 2707
Loc: Anaheim, CA. USA
What a cool project!!!

Scott35
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#123805 - 05/13/06 02:29 AM Re: Mega-Shredder
briselec Offline
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Registered: 12/28/05
Posts: 141
Loc: Brisbane, Australia
Interesting stuff! Thanks for sharing
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#123806 - 05/13/06 02:32 AM Re: Mega-Shredder
togol Offline
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Registered: 09/15/05
Posts: 421
Loc: NW In. USA
16,000 a week !! I"ll bet those neighbors are thrilled...

cool lookin contraption nonetheless...
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#123807 - 05/13/06 02:39 AM Re: Mega-Shredder
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8211
Loc: SI,New Zealand
Alan,
7000HP motor!.
Is it a 4160V version?.
It is obviously not 240V!.
Mate,
I'd be interested to see the control gear on this Bad-Boy!.

[This message has been edited by Trumpy (edited 05-13-2006).]
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#123808 - 05/13/06 02:51 AM Re: Mega-Shredder
Alan Belson Offline
Member
Registered: 03/23/05
Posts: 1803
Loc: Mayenne N. France
WOW! Alan, I'd love to see some pics of that motor!!! Any chance of you sneakin' back on some pretext, with a camera?

Alan [the other one]

ps. Don't park too close to the plant!
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#123809 - 05/13/06 06:28 AM Re: Mega-Shredder
Alan Nadon Offline
Member
Registered: 03/10/05
Posts: 399
Loc: Elkhart, IN. USA
Unfortunately the motor is not very impressive looking.
It doesn't even look like a motor.
It is enclosed in a box shaped housing about eight feet wide and high and about twelve feet long.
It is about as fancy as looking at a walk in cooler.
It is a 4,160 volt.
Originally it was supposed to be an 8,000 Hp but,the company building it had a problem so they found the 7,000 Hp sitting on a shelf somewhere and substituted it.
The neighbors are happy that the three story stack of junkers has been reduced to below the landscaped berm.
Alan--
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#123810 - 05/13/06 07:07 AM Re: Mega-Shredder
iwire Offline
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Registered: 01/05/03
Posts: 4391
Loc: North Attleboro, MA USA
Quote:
so they found the 7,000 Hp sitting on a shelf


Oh yeah 4160 volt 7,000 HP motors can be found anywhere, Home Depot or Graingers.

It's those 8000 HP motors that are hard to come by.

Cool photos, thank you for sending them in.

Bob
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#123811 - 05/13/06 07:31 AM Re: Mega-Shredder
resqcapt19 Offline
Member
Registered: 11/10/00
Posts: 2148
Loc: IL
If the unit pulls the full 400 amps, then the electricity will cost about $1600 per hour if they are paying 5 cent per kWH.
Don
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#123812 - 05/13/06 09:35 AM Re: Mega-Shredder
CTwireman Offline
Member
Registered: 02/07/02
Posts: 840
Loc: Connecticut, USA
There is a facility similar to this one located off of Rt 91 in North Haven, CT (for anyone who is familiar with the area). It has a tiny 4000 HP motor by comparison.

The operartor of the shredder sits in a "bomb proof" control room because of the occasional propane tank that slips through, which does happen with such a high feed rate. (I am sure the facility pictured is no different.) I was told the shredder operator of the North Haven facility has been knocked on his keester a few times because of such mishaps.

Peter
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