hi all
anyone had any expierence with these ampflow motors? the economy range
http://www.ampflow.com/ampflow_motors.htm
anydoby got thoughts about use in a HW?
cheers alex
The E30-400 is somewhat comparable to a strong wheelchair motor.
I like the look of the a28 400 sure they would be perfect.
I think some 40-300s are going in the next Saint.
They are just rebranded Magmotors
The A28-400 is the Magmotor S28-400 whih Big Nipper use for drive and Storm II uses for the arm
The A28-150 is the Magmotor S28-150 'mini mag'
No idea how the others perform
Ed
would like the a28 400 as i plan to remove my chains and 250mm wheels and replace with gears and 125mm wheels, making the complete drive system more compact and lighter.
will have to ask the nipper guys if they could run them on a watty, im sure they use a megawatty though. I have to do this as I want to reshape the back in at the bottom so I can also remove the wheely bar and wont get stuck on the rear end.
The A28-400 =$419
The E30-400 =$119
The Bosch 750 is in between those in pricetag and power, but is bigger and needs some ruggedization.
On the other hand, a Bosch 750 , if ruggedized and well geared, can handle 36V, something not recommended with the enclosed Magmotors/Ampflows.
In short, my first remark that the E30-400 is a kind of strong wheelchair motor is rather accurate.
.75 Hp=500W Peak efficiency@ 5100 rpm.
Let's take a 250mm wheel as example.
End speed wished, 15 km/h (somewhat slower than avarage)
Gearratio 16-1
With a 12-1 gearratio it becomes 20km/h
The mags also need abit of Modding, Nipper guys have had problems with magnets moving etc. You also have to keep an eye on the brushes as they don't seem to last long, and if they go, they can write off the comm.
I've slipped the magnets in a mini mag in hornet 2. Had to machine up a retaining ring on the lathe.
Meaning the E30-400 still are a budget friendly alternative. If P&P ain't a killer.
On the other hand, Iskra still excist.
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