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Author Topic: Covered Hopper Question  (Read 2057 times)

Offline TasteOfIrony

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Covered Hopper Question
« on: June 11, 2010, 10:29:47 PM »
What are the differences between covered hoppers used for grain and used for plastic pellets? Are there huge differences, or are they internal?
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Offline PintOLager

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Re: Covered Hopper Question
« Reply #1 on: June 12, 2010, 06:35:16 PM »
That's a good question, one that I've always wondered about too. It probably depends on the type of commodity being hauled. I'd guess that hoppers used to haul granular plastics/chemicals are no different that those used to haul grain, however I know there are many powdered chemicals that require a pressurized hopper to make loading and unloading easier.
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Offline Isegrinns

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Re: Covered Hopper Question
« Reply #2 on: June 12, 2010, 09:56:36 PM »

Maybe the hoppers are dedicated for one or the other product....

Thats the case over here. Hoppers for grain have a huge lettering over it, otherwise they are technical identic to normal closed hoppers used for chalk, for example.
Like this model:

http://www.kleinserienbahnhof.de/kleinserienbahnhof/modellsammlung/bild675.jpg

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Offline Great_Lakes

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Re: Covered Hopper Question
« Reply #3 on: June 12, 2010, 11:32:17 PM »
From what I can tell, most of the centerflow covered hoppers for plastic pellets are 4 bay and the grain is 3 bay.  I also noticed that for the most part, the roof hatches are usually different for the centerflows anyways.  Rounds hatches tend to be for pellets and bulk chemical powders but the long rectangular hatches tend to be for grain. 
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Offline jadebullet

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Re: Covered Hopper Question
« Reply #4 on: June 14, 2010, 02:49:03 AM »
I know with cement, they tend to use 2 bay hoppers with round hatches.