[gor]

any experience with this motor? numbers seems overrated - 5 times to it's counterparts ...

Emrax/Enstroj/glider-one.si/:

http://www.glider-one.si/index.php?o...d=46&Itemid=93
EMRAX motors
motor weight 11 kg.
Emrax motors: 50 kWp 1 min; 40 kWp 2 min; 30 kW continious at 1900 RPM. At higer voltage can achieve up to
60 kW/3000 RPM at the same Amps-torque.

Efficientsy is 92% at 30 kW continious power / 2000 RPM at air speed 20 m/sec. The point of the best efficient 95%



http://www.glider-one.si/index.php?o...d=47&Itemid=96

2. Tested PROTOTYPE electric motors EMRRAD - 30kWconstant / 40 kWpeak power at 1900 RPM / 200V DC; air colled (20m/s)
torque 150Nm continious / 250Nm peak



------------------------------


http://www.metricmind.com/
MESmotorsspecsheet2


Nominalpower (S1) kW 3.5_5_6.2
Nominaltorque (S1) Nm 11.5_16.5_20
Weight kg 12 15 18
------------------
lynch [lemco]
http://www.lmcltd.net/index.php?page=motors-and-generators-2

11kg; D135
PeakPower kW: 29.04; 400a
Rated PowerkW: 14.39
Rated TorqueNm: 36.4
-----------------------

agnimotors
http://www.agnimotors.com/home/index.php?option=com_content&task=view&id=25&Itemid=61

Weight1Kg. Upto9KW (12horsepower) at60volts, at3000rpm
speedofabout50rpmforeachvolt.
max80ampsat12voltsto160ampsat60volts
200a 27nm 4900rpm 13kw
300a 40nm 4900rpm 19kw
---------

PMS120W14,3kg
Rated 11,0kW/6000rpm 22,3Nm /1500
Peak 40Nm (0.5sec)

[Jordysport]

Looks interesting dependent on price.

[maxvtol]

Originally Posted by gor

any experience with this motor? numbers seems overrated - 5 times to it's counterparts ...

No experience with this motor, but power density looks to be similar to the more powerful RC motors I've seen. Will need lots of air to cool, and I'm sure it's sensorless, not sure how well it will work for EV.

[Posthumane]

I recently inquired about these motors for another aircraft application. They are currently not for sale to individual customers, but will be soon. Right now they are only taking orders in batches of 50 or more. The price I was quoted was around 1900 euro. This is for the 200 VDC rated motors. They are indeed sensorless, and they sell the appropriate sensorless controllers as well for about 2500 euro.

As stated, they have a high power to weight ratio, which means that heat dissipation is critical. They specify 20m/s continuous airflow at 25 degrees Celsius. While that is certainly achievable in an aircraft, air cooling this motor in a a car or motorbike would be difficult. That being said, their specs also offer water cooling as an option, though I don't know if they are producing any motors with this option yet.

Perhaps it would be possible to try a group buy for people who are interested in these?

[Jordysport]

Originally Posted by Posthumane

I recently inquired about these motors for another aircraft application. They are currently not for sale to individual customers, but will be soon. Right now they are only taking orders in batches of 50 or more. The price I was quoted was around 1900 euro. This is for the 200 VDC rated motors. They are indeed sensorless, and they sell the appropriate sensorless controllers as well for about 2500 euro.

As stated, they have a high power to weight ratio, which means that heat dissipation is critical. They specify 20m/s continuous airflow at 25 degrees Celsius. While that is certainly achievable in an aircraft, air cooling this motor in a a car or motorbike would be difficult. That being said, their specs also offer water cooling as an option, though I don't know if they are producing any motors with this option yet.

Perhaps it would be possible to try a group buy for people who are interested in these?

Jesus that is expensive, i will stick to my Kostov and Zilla thank you.

[gor]

Originally Posted by Posthumane

I recently inquired about these motors for another aircraft application. They are currently not for sale to individual customers, but will be soon. Right now they are only taking orders in batches of 50 or more. The price I was quoted was around 1900 euro. This is for the 200 VDC rated motors. They are indeed sensorless, and they sell the appropriate sensorless controllers as well for about 2500 euro.

As stated, they have a high power to weight ratio, which means that heat dissipation is critical. They specify 20m/s continuous airflow at 25 degrees Celsius. While that is certainly achievable in an aircraft, air cooling this motor in a a car or motorbike would be difficult. That being said, their specs also offer water cooling as an option, though I don't know if they are producing any motors with this option yet.

Perhaps it would be possible to try a group buy for people who are interested in these?

20m/s= 72km/h=45mph
1kw blower normally provides 200-300 CFM at 185-215 mph airflow

[samborambo]

Originally Posted by Jordysport

Jesus that is expensive, i will stick to my Kostov and Zilla thank you.

11+ motor units @ 1500 euros each. Their BLDC controllers are 2000 euros each for 11+ units. That's around US$4800 for a 50kW peak system.

I think their controller is a bit expensive. A Kelly controller like http://www.newkellycontroller.com/pr...roducts_id=727 is US$2000 but would be suitable for the Enstroj motors ordered wound for half the voltage / twice the current.

They do have an option for hall sensors. Shaft encoding is also an option with some other controllers.

Perfect motor for a sports motorbike with A123 20Ah pouch cells.

Email Roman at Enstroj for more information. He was very responsive to my email. I agree that a group buy would be a great option. Maybe EV Components want to carry some stock?

Sam.

[frodus]

Originally Posted by samborambo

Maybe EV Components want to carry some stock?

Sam.

What is the intended market? Motorcycles?

Most motorcycle guys wouldn't be able to afford $5k for motor/controller, and its not very likely that someone would use one in a car.

I can ask, but It'l likely be a No unless we can prove a need/organize 11+ people to buy them before we purchase.

[samborambo]

Originally Posted by frodus

What is the intended market? Motorcycles?

Most motorcycle guys wouldn't be able to afford $5k for motor/controller, and its not very likely that someone would use one in a car.

I can ask, but It'l likely be a No unless we can prove a need/organize 11+ people to buy them before we purchase.

I suppose you get what you pay for in power to weight and efficiency. What's the next best option, the Etek BLDC?

Sam.

[frodus]

Nah, maybe the Agni motor.

I mean its a good power to weight, just not powe/weight to cost ratio.