12volt motor question

[rosinante]

HI I have a 10 rpm 30nm 230v motor you can have for a few cans of beer if you want it ,I am in Gillingham Kent ,pm me if interested.
HTH Chris

 

[Badger1bear]

do you have a pic Chris ?

 

[rosinante]

No Pics but it is an ally body 150mm ish dia about 220 long, shaft dia is 20mm ish offset as the motor is geared ,draws about 40w and can be stalled without burning out , it is from a parking barrier ,had it for years rigged with a capacitor to run , also have the cap, as it only draws about 0.2amps/230v you could run it thru an inverter in your vehicle if no mains available. Very difficult to stop,
Chris

 

[Badger1bear]

im a tad lost Chris, you say it can be stalled without burning out and then say its very difficult to stop ?

is there mounts for it to be bolted down ?

 

[puffernutter]

The problem with PWM is that at slow speed, the controller can get quite hot due to the turn on time of the transistors! I still reckon that full speed and gearing is the way to go!

 

[Wendelspanswick]

The problem with PWM is that at slow speed, the controller can get quite hot due to the turn on time of the transistors! I still reckon that full speed and gearing is the way to go!

That's true.

 

[rosinante]

In use the motor was effectively stalled when the barrier raised or lowered and the motor warmed up and acted as a anti condensation heater for the barrier cabinet , it can be stalled by applying a hefty spanner across the flats on the shaft and powering,with a couple of sprockets and bike chain should be plenty for a hog roast.it is foot mounted
Chris

 

[Gavin_d]

Don't reduce the voltage. Use a pulse width modulation unit. Cheap to buy with a nice handy variable knob. I have one on my rig cooler to increase and decrease flow.


EDIT I see this has been discussed all ready lol.