Looking for recipes and time charts on vacuum meat tumbling.
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I have the same issue, but with a pulley grinder I built from a 1400RPM Agricultural AC fan motor. My current setup has the grinder spinning north of 400Rpm. I have decided like you that changing the gear/pully ratio is the best option, but honestly the last time I ran it I got through 10lbs of pork Butt in less than 3 minutes and couldn’t identify any issues with the blade or plate.
One thing that you might be able to do is put an intermittent “timer” in line to the AC voltage. The revolutions per minute are probably more important than the speed it turns over so if you could turn voltage on every 3 seconds for 1 second you could cut your RPMs down that way.
Either way let us know how it works out.
pr0wlunwoof said in Looking for recipes and time charts on vacuum meat tumbling.:
I have the same issue, but with a pulley grinder I built from a 1400RPM Agricultural AC fan motor. My current setup has the grinder spinning north of 400Rpm. I have decided like you that changing the gear/pully ratio is the best option, but honestly the last time I ran it I got through 10lbs of pork Butt in less than 3 minutes and couldn’t identify any issues with the blade or plate.
One thing that you might be able to do is put an intermittent “timer” in line to the AC voltage. The revolutions per minute are probably more important than the speed it turns over so if you could turn voltage on every 3 seconds for 1 second you could cut your RPMs down that way.
Either way let us know how it works out.
When my SCR didn’t work i tried using a dimmer switch which would intermittently cut the voltage but it had no effect on slowing it down.
The only solution was changing the gear head reduction ratio.
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pr0wlunwoof said in Looking for recipes and time charts on vacuum meat tumbling.:
I have the same issue, but with a pulley grinder I built from a 1400RPM Agricultural AC fan motor. My current setup has the grinder spinning north of 400Rpm. I have decided like you that changing the gear/pully ratio is the best option, but honestly the last time I ran it I got through 10lbs of pork Butt in less than 3 minutes and couldn’t identify any issues with the blade or plate.
One thing that you might be able to do is put an intermittent “timer” in line to the AC voltage. The revolutions per minute are probably more important than the speed it turns over so if you could turn voltage on every 3 seconds for 1 second you could cut your RPMs down that way.
Either way let us know how it works out.
When my SCR didn’t work i tried using a dimmer switch which would intermittently cut the voltage but it had no effect on slowing it down.
The only solution was changing the gear head reduction ratio.
I am loving this Vacuum Tumbler! I did 20 minute garlic dill pickles/peppers and an overnight soak turned out crunchier and better then a 7 day brine. Its amazing how well the vacuum draws the liquids in so quickly.
What i did was a two phase. I pulled 30+ inHg and left it soak for 10 minutes then released the vacuum. Then i pulled another 30+ inHg vacuum and left it soak for another 10 minutes before releasing. The results were instant, but overnight really helped infuse that garlic and dill into the pack of pickled peppers.
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mikemikemike No tumble right? Id think you’d end up with a cucumber paste if you tumbled them?
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mikemikemike No tumble right? Id think you’d end up with a cucumber paste if you tumbled them?
Jonathon
i placed a rack inside and just put the container with the pickles on the rack.
correct, no tumble. -
Jonathon
Just tumbled a spatchcock chicken. Even at 28 rpm the mechanical tenderization seperated a leg quarter from the joint. Im actually happy about that because the gear head i ordered doesn’t fit my motor. Bad thing about chinese parts is 20 million company’s make knock offs of the same Model# and fitment is a crap shoot. Oh well, ebay has a good return policy for buyers. Just sucks because i might have to replace the entire motor/gear head since i can’t find a gear head for this chinese knock off. I guess that old adage “you get what you pay for” holds true. But its still a great machine even if i can’t control speed. -
Maybe you can put an intermittent on off switch. Then control the length of time its on and then off. Like on for 1 second off for 5. Your speed you turned would be the same but the rpm could be controlled.
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Maybe you can put an intermittent on off switch. Then control the length of time its on and then off. Like on for 1 second off for 5. Your speed you turned would be the same but the rpm could be controlled.
I believe i mentioned i tried a dimmer switch. That is what a dimmer switch does, but i dont know how many times per second the lowest setting on a dimmer turns off/on.
I suppose i could write a arduino sketch to cut a dc relay to toggle a 220v ac momentary switch to any length of time to find the sweet spot (if there is one).
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AC motors are dependent on frequency vs magnetic poles, not cheap or easy to control speed
Any chance to convert to a DC motor? -
AC motors are dependent on frequency vs magnetic poles, not cheap or easy to control speed
Any chance to convert to a DC motor?I thought of it, but the circuit board takes the 220v then splits the 220v to a series of relays then to the motor, and the 220v also goes to what i believe is a ac to dc transformer that goes to anoher circuit board that controls the timer, and the forward and reverse functions just to name a few. My cheapest solution was to just get a higher ratio gear head. I am just going to ship this gear head back and go through some place like Aliexpress and try and find the correct chinese knock off. I’ll get it cheap but it will take up to 60 days to get here.
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I believe i mentioned i tried a dimmer switch. That is what a dimmer switch does, but i dont know how many times per second the lowest setting on a dimmer turns off/on.
I suppose i could write a arduino sketch to cut a dc relay to toggle a 220v ac momentary switch to any length of time to find the sweet spot (if there is one).
mikemikemike Yeah. I was thinking something to control a solid state relay. Arduino would definately work. Also a raspberry pi might be a good candidate. If you went raspberry pi you might be able to find an interface you could control remotely.
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I thought of it, but the circuit board takes the 220v then splits the 220v to a series of relays then to the motor, and the 220v also goes to what i believe is a ac to dc transformer that goes to anoher circuit board that controls the timer, and the forward and reverse functions just to name a few. My cheapest solution was to just get a higher ratio gear head. I am just going to ship this gear head back and go through some place like Aliexpress and try and find the correct chinese knock off. I’ll get it cheap but it will take up to 60 days to get here.
mikemikemike Yeah. Going the arduino or rasberry pi route you’d be best to take the onboard controller out of the loop. I feel your pain on the shipping etc. Once you get it where you I want it though you will be proud and have something your friends will envy.
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mikemikemike Yeah. Going the arduino or rasberry pi route you’d be best to take the onboard controller out of the loop. I feel your pain on the shipping etc. Once you get it where you I want it though you will be proud and have something your friends will envy.
Honestly, it works great as is. I just figured for an extra $30 i could reduce the speed to an average speed some of the more $$$ tumblers use. The persistent side of me doesn’t want to give up though, lol.
Boy did that spatchcock chicken turn out juicy and tender. I injected with sodium phosphate, and did a 5% salt brine in the tank. 25inHg for 30 min. Amazing.
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Honestly, it works great as is. I just figured for an extra $30 i could reduce the speed to an average speed some of the more $$$ tumblers use. The persistent side of me doesn’t want to give up though, lol.
Boy did that spatchcock chicken turn out juicy and tender. I injected with sodium phosphate, and did a 5% salt brine in the tank. 25inHg for 30 min. Amazing.
mikemikemike Yeah, I thought it may be complicated to convert to DC
I hope you find the right gear. Any chance of a motor repair shop fairly close? They may be able to help with sizing and sourcing
Be careful with artificially slowing an AC induction motor, overheating an burn out is the problem -
mikemikemike Yeah, I thought it may be complicated to convert to DC
I hope you find the right gear. Any chance of a motor repair shop fairly close? They may be able to help with sizing and sourcing
Be careful with artificially slowing an AC induction motor, overheating an burn out is the problemI am probably just going to leave well enough alone.
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I probably would too
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