A thing I didn't know was a thing

"Cé hé sin" (michael-m-mouse) 01/08/2019 at 18:02 • Filed to: Colmar SL160E

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This strange looking beast.

It’s a Colmar SL160E electric shunter. Power is by two 40 kW motors which are supplied by a 4,200 Ah battery pack.

80 kW is only about 107 bhp, (coincidentally it’s about as much as my car) so we’re not talking about much in the way of power, especially as it weighs about 30 tonnes.

So, what kind of weight can this machine move?

About 3,200 tonnes on level ground. It’s surprising what you can do with really low gearing.

MasterMario - Keeper of the V8s > Cé hé sin 01/08/2019 at 18:15

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Do electric motors really need gearing though? Does spinning faster generate less heat? They do have 100% torque available at 0rpm so fearing seem redundant 

Cé hé sin > MasterMario - Keeper of the V8s 01/08/2019 at 18:19

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They do indeed. An electric car has one fixed gear, but it’s still a reduction gear. To give an example, a Leaf has a reduction of about 8 to 1.

Rusty Vandura - www.tinyurl.com/keepoppo > Cé hé sin 01/08/2019 at 18:22

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And low rolling resistance, no?

Cé hé sin > Rusty Vandura - www.tinyurl.com/keepoppo 01/08/2019 at 18:24

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That as well.

user314 > Cé hé sin 01/08/2019 at 19:47

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Not the exact model, but you get the idea:

eftalanquest > Cé hé sin 01/10/2019 at 19:25

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these kinds of two way vehicles are pretty common over here in germany.

quite often unimog based (because what can’t this thing do ) for shunting:

sometimes based on other truck platforms for specialty uses:

but the most ubiquitous two way vehicle you will find here is this: