Sotion MG160-A motor with reduction 9kw - 12kw rate

dewz · Oct 29, 2022

Some one want this? Belt or Chain is better?
This will be very nice for Enduro bike and street bike. With low weight high power and high torque.
There are 2 version 9kw and 12kw
If you interest to test comment below.

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and this is 12kw version

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Test drive
https://youtu.be/1V7ZAF_J-rg

j bjork · Oct 30, 2022

Looks interesting

The obvious question would be how it compares to qs popular and well regarded motors?
Looks very similar. 20mm spline on the output shaft is an advantage.
What is the rotor size?

dewz · Oct 30, 2022

This is very new. no one use it yet. and soon i will open and check inside motor.
12.5kg for 9kw motor is advantage.

j bjork · Oct 30, 2022

Power ratings seems rather random to me, I wouldn't put to much faith in that.

It says 59Nm peak, I think qs rates the 138 70h 50Nm, ( I just looked at cnqsmotors, it said 45-55Nm) and the 138 90h 72Nm.
I suppose this would then be a little more powerful than the qs138 70h, a little less than qs138 90h.
But there is probably more to the story, like copper fill I guess.

Is there a web page?

dewz · Oct 30, 2022

j bjork said:
Power ratings seems rather random to me, I wouldn't put to much faith in that.

It says 59Nm peak, I think qs rates the 138 70h 50Nm, ( I just looked at cnqsmotors, it said 45-55Nm) and the 138 90h 72Nm.
I suppose this would then be a little more powerful than the qs138 70h, a little less than qs138 90h.
But there is probably more to the story, like copper fill I guess.

Is there a web page?

I am not sure about this detail because they are different RPM rate , and power. This motor is 8000 with flux . but QS 138 90H 6500 with flux.
QS write power peak 13.5kw , this motor 18kw peak. so maybe it mean QS have higher torque , but lower Power.
Torque and Power are different range.
They are different factory and machine to test also different detail cannot easy compare both.

j bjork · Oct 30, 2022

What makes one or the other 6500 or 8000rpm with or without FW?
That depends on a lot of things, what voltage? How much FW?
I have got over 8000rpm out of a qs 138 70h at under 90v with FW.

There is a rated rpm of 3850 in the spc, and a rated voltage of 72.
I suppose that means a kv of 53,5, (3850/72) where the qs 138 70h has been tested to about 60kv.
So if that is correct you should get higher rpm with the qs at a given voltage, but they rate 3800rpm and 72v, so that suggests slightly lower :? (Maybe that is not the correct way to calculate?)

What is the manufacturer of this motor?

dewz · Oct 31, 2022

j bjork said:
What is the manufacturer of this motor?

You can't find this on anywebsite because they do only OEM.
They not selling it to normal market. I just know them personal and order sample for test.
I will test it with CRF450R frame very soon.

amberwolf · Oct 31, 2022

Who is "they"? What is their company name? What is their website? (even if it isn't a sales site)

dewz · Feb 24, 2023

Unbox , looking at outside quality.

dewz · Feb 24, 2023

amberwolf said:
Who is "they"? What is their company name? What is their website? (even if it isn't a sales site)

Sotion motor

larsb · Mar 7, 2023

Peak torque 80Nm for 15kg motor is 0.53Nm/kg
Peak torque 55Nm for 10kg QS 138 70h is 0.55Nm/kg - so these two motors are quite comparable in the peak ratings. Peak rpm 8000 Shinwin, 7500 QS (at least that’s what qs had in their specs way back when the 138 70h motor was new)

What’s the diameter of the rotor of the Shinwin motor?

dewz · Mar 7, 2023

larsb said:
Peak torque 80Nm for 15kg motor is 0.53Nm/kg
Peak torque 55Nm for 10kg QS 138 70h is 0.55Nm/kg - so these two motors are quite comparable in the peak ratings. Peak rpm 8000 Shinwin, 7500 QS (at least that’s what qs had in their specs way back when the 138 70h motor was new)

What’s the diameter of the rotor of the Shinwin motor?

102mm

j bjork · Mar 8, 2023

larsb said:
Peak torque 80Nm for 15kg motor is 0.53Nm/kg
Peak torque 55Nm for 10kg QS 138 70h is 0.55Nm/kg

10kg must be v1 or 2 of the qs 138 70h? I think the v3 with gearing must be heavier?

larsb · Mar 8, 2023

Yes, that’s true, then both the rotor diameter and weight gives the Shinwin an advantage on the QS motor if the specs are correct.

cheapcookie · Mar 10, 2023

does this motor fit directly into a specific frame ?

dewz · Mar 10, 2023

cheapcookie said:
does this motor fit directly into a specific frame ?

What frame? You can check from motor drawing.

dewz · Mar 10, 2023

Two4Seven SuprDan · Mar 11, 2023

oh wow thats the idea i had for the rotor on the bafang bbshd more or less, i bet its pretty awesome though! im in the states, and interested in testing lol! no english translation on the baanlithium.com website, looks like some great power packs over on there though.....