blue_tractor_man
Member
Maybe a little off tractor topic, but with the expertise here, I thought I would get your opinions.
I'm a beekeeper, and I have a 9 frame spinning extractor that is currently hand cranked. I wanted to put an electric motor on it to spin the honey, but the store bought version is $800. I use 12 volt permanent magnet 1/3 HP 600 rpm motors in my business on Hannay hose reels. The replacement motor is a Nidec P56AN230. These motors pull 20 amps under normal load, and 40 amps when stalled. They seem like the perfect option, but I need the ability to slowly raise the rpm's from zero to 600 as the honey frames empty and the load becomes balanced, then let it run at 600 rpm for maybe 5 minutes until the frames are empty. I looked into a 115AC to 12v DC motor controller, but one that can handle 20 amps is $400. I looked into rheostats that can handle 20 amps, but they cost over $100. Plus, I'm not exactly sure how many ohms I need, despite trying to use Ohm's Law. The motor has .7 ohms of resistance when I measure across the leads.
I can either use a device that converts 115V AC to 12V DC, or just use a 12 volt battery.
Is there a simple and cheap way to do this?
Thanks in advance.
I'm a beekeeper, and I have a 9 frame spinning extractor that is currently hand cranked. I wanted to put an electric motor on it to spin the honey, but the store bought version is $800. I use 12 volt permanent magnet 1/3 HP 600 rpm motors in my business on Hannay hose reels. The replacement motor is a Nidec P56AN230. These motors pull 20 amps under normal load, and 40 amps when stalled. They seem like the perfect option, but I need the ability to slowly raise the rpm's from zero to 600 as the honey frames empty and the load becomes balanced, then let it run at 600 rpm for maybe 5 minutes until the frames are empty. I looked into a 115AC to 12v DC motor controller, but one that can handle 20 amps is $400. I looked into rheostats that can handle 20 amps, but they cost over $100. Plus, I'm not exactly sure how many ohms I need, despite trying to use Ohm's Law. The motor has .7 ohms of resistance when I measure across the leads.
I can either use a device that converts 115V AC to 12V DC, or just use a 12 volt battery.
Is there a simple and cheap way to do this?
Thanks in advance.
