What is the purpose of Toro's drum auger? - Snowblower Forum : Snow Blower Forums
 
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post #1 of 10 Old 04-04-2017, 09:12 AM Thread Starter
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What is the purpose of Toro's drum auger?

Many, if not all? Of Toro's 2 stage snowblowers have what I'm calling a drum auger, a large cylinder that the auger blades are attached to rather than the smaller hollow "pipe". Why? Is there an advantage?

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post #2 of 10 Old 04-04-2017, 09:19 AM
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Some previous opinions on the drum auger-

https://www.snowblowerforum.com/forum...rs-design.html

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post #3 of 10 Old 04-04-2017, 11:31 AM
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Here's another one: https://www.snowblowerforum.com/forum...er-design.html

It seems that the drum auger helps limit the amount of snow that gets drawing in, preventing clogging and overloading.

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post #4 of 10 Old 04-04-2017, 05:23 PM
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I thought it was their take on the Archimedean screw . . . The center section is not that efficient as compared to the outer section, thus the drum in the center section.

Regards, Ted
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post #5 of 10 Old 04-04-2017, 07:19 PM
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I remember when they introduced the 'drum' auger. They claimed it reduced clogging.

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post #6 of 10 Old 04-04-2017, 09:54 PM
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I agree with what's said about.
These machines still rule.
Can't be a wussy to muscle these around day after day.
Still love this 1132.


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post #7 of 10 Old 04-05-2017, 05:42 AM
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I think Archimedes owned a Toro, because look at this design for a pump that he came up with back in about 250 B.C. . . .




It's even painted black

there are some university papers, etc on the web that talk about design optimization of the inner cylinder (i.e. drum) radius versus the outer radius of the screw.

Just wondering if Toro was thinking along those lines with their drum auger . . .

Regards, Ted
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post #8 of 10 Old 04-05-2017, 08:57 AM
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The drum makes it more like a positive displacement pump, so in theory the rate of snow being brought to the impeller is more constant. The solid but varying consistency of snow makes this more or less relevant but I can see that the drum could somewhat optimize and regulate the flow rate. It appears to be a cost vs real benefit thing.
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post #9 of 10 Old 04-05-2017, 09:42 AM
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Never had a complaint with my toro with the drum auger. I can't say if it's any more or less effective then an open center ribbon auger.

Doesn't look as cool though.

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post #10 of 10 Old 04-05-2017, 04:04 PM
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Also, the more standard augers with just the blades, being about 3" in width, really does not move any more snow, it just allows the snow to be pushed in through the auger blades due to the forward motion of the machine.

The Toro drum design forces the snow into the blades which then move the snow to the center of the machine where the impeller takes it.

Regards, Ted
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