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The Pusher it's a Trackmobile

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The Pusher it's a Trackmobile
Posted by BigDaddy on Wednesday, July 17, 2019 3:03 PM

I've not seen one of these before.

Not a very good picture, but it pushed 2 coal hoppers out of a foundry.  It backed out of the field of view.  When the camera was moved, there was another hopper at the entrance of the foundry and the pusher was no where to be seen, so I assume it's a hirail vehicle.  

Henry

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Posted by ATSFGuy on Wednesday, July 17, 2019 3:14 PM

Looks like a Trackmobile

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Posted by BigDaddy on Wednesday, July 17, 2019 3:33 PM

Thanks, I knew it must have a name.

BLI actually makes a HO DCC version.  It says "custom NCE" it does not say sound.  Price is $90-116 depending on model.

Henry

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Posted by peahrens on Wednesday, July 17, 2019 4:35 PM

BigDaddy
BLI actually makes a HO DCC version. It says "custom NCE" it does not say sound. Price is $90-116 depending on model.

This is my DCC (no sound) BLI HO UP version from a few years ago.  It says "Trackmobile" on it.  Apparently that is one of several U.S. manufacturers.  Wiki calls them "railcar movers".  I imagine there are quite a few variations. 

I was thinking to add that I added a sound decoder with quad micro speakers, plus extra weight such that it can push or pull 48 loaded coal cars up a 3% grade.  Would you believe...no sound but I just hum as it pushes 2 empty cars downhill? Wink

 20190717_162340 by Paul Ahrens, on Flickr

https://en.wikipedia.org/wiki/Railcar_mover#North_America

 

Paul

Modeling HO with a transition era UP bent

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Posted by NittanyLion on Wednesday, July 17, 2019 7:50 PM

They're quite potent little guys.  They use a pair of them down at Kennedy to move Atlas V rockets and their launch towers from vertical integration to the pad.  The Atlas V has a loaded weight of around 1.3 million pounds and have no idea how much the tower weighs.

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Posted by Doughless on Thursday, July 18, 2019 6:54 AM

I suppose having actual rubber tires helps?

- Douglas

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Posted by gmpullman on Thursday, July 18, 2019 7:08 AM

Doughless

I suppose having actual rubber tires helps?

 

The Whiting Trackmobile I worked on the rubber tires only engaged for road use. They were 90° perpendicular to the steel flanged wheels.

 getting ready to settle - Trackmobile by Tim Evanson, on Flickr

This is the same machine, GE donated it to Midwest Railway Preservation Society.

The Hercules model has the rubber tires in-line with the steel wheels but they are retracted while the unit is on the steel wheels.

Cheers, Ed

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Posted by Doughless on Thursday, July 18, 2019 7:25 AM

Interesting.  That makes sense.  If it did use "tractive tires", they wouldn't have to be the road worthy type.

- Douglas

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Posted by gmpullman on Thursday, July 18, 2019 8:34 AM

Doughless

Interesting.  That makes sense.  If it did use "tractive tires", they wouldn't have to be the road worthy type.

 

There were several experiments with rubber-tired rail vehicles. Look up the Michelin Micheline railcar. Budd was licenced to build a few for trial here in the States. One ran on the PRR for a short time.

https://en.wikipedia.org/wiki/Budd%E2%80%93Michelin_rubber-tired_rail_cars

 Lewis Collection 3511 by John W. Barriger III National Railroad Library, on Flickr

 

Then there was the Evans road-railer.

Regards, Ed

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Posted by Doughless on Thursday, July 18, 2019 9:54 AM

Cool.  Didn't work out I guess.  

Getting back to the trackmobile, how is it able to pull so many cars?  Maybe its a simple physics issue where whatever mass the little beast has is able to be concentrated onto little tiny wheels, making those wheels really sticky?

- Douglas

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Posted by cuyama on Thursday, July 18, 2019 1:51 PM

Doughless
Getting back to the trackmobile, how is it able to pull so many cars?

It’s rather ingenious. The prototype trackmobile is designed to actually hydraulically lift the end of the railcar slightly via the coupler, transferring weight to the trackmobile and its wheels.

https://trackmobile.com/about-us/history/

 

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Posted by BroadwayLion on Saturday, July 20, 2019 9:45 AM

The machines at the Halliburton plant here in Richardton use the rail wheels for guidance and the rubber wheels for traction. Hundreds times more traction on the rubber than on the steel.  And because of it's off rail capibility and captive service at the plant, it does not need railroad type locomotive inspections. They can just drive it down to the service station for service.

 

ROAR

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Here there be cats.                                LIONS with CAMERAS

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Posted by Water Level Route on Monday, July 22, 2019 9:03 AM

We use Trackmobiles where I work.  The rubber tires are only for road driving.  The weight transfer plus sand (they have built in sanders too) works pretty well.  I've seen them push well more than they are rated for.  If I recall correctly, I've seen them move 12 or 14 of our cars, fully loaded.  At over 260,000 lbs each you're looking at LOTS of weight.

Another company (Rail King?) makes movers with rubber tires that provide the motive force and traction on the rails.  We tried them.  In good dry weather, they worked well.  In rain or snow, forget about it.

Mike

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Posted by zugmann on Monday, July 22, 2019 6:00 PM

I believe Shuttlewagons are the ones that use their tires.

 Several of our customers have been buying/leasing railcar movers the last couple years. Even places with one track and an unloading pit.  Most of them used to just roll the cars down the slight grade their siding sits on, or use a winch to pull them back up.   (If they weren't using a front end loader or other piece of machinery).  Guess the convenience is worth the expense.

 The opinions expressed here represent my own and not those of my employer or any other railroad, company, or person.

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